Radojević, R. L., Petrović, D. V., Mileusnić, Z. I., Barać, S.,& Vuković, A.. (2023). Rekonstrukcija polunošenog kombajna za ubiranje jagodastog voća u samohodni za mala i srednja poljoprivredna gazdinstva. in MNO za Mašinstvo i industrijski softver
MINISTARSTVO PROSVETE, NAUKE I TEHNOLOŠKOG RAZVOJA REPUBLIKE SRBIJE., 1-31.
https://hdl.handle.net/21.15107/rcub_agrospace_6744

Radojević RL, Petrović DV, Mileusnić ZI, Barać S, Vuković A. Rekonstrukcija polunošenog kombajna za ubiranje jagodastog voća u samohodni za mala i srednja poljoprivredna gazdinstva. in MNO za Mašinstvo i industrijski softver. 2023;:1-31.
https://hdl.handle.net/21.15107/rcub_agrospace_6744 .

Radojević, Rade L., Petrović, Dragan V., Mileusnić, Zoran I., Barać, Saša, Vuković, Aleksandar, "Rekonstrukcija polunošenog kombajna za ubiranje jagodastog voća u samohodni za mala i srednja poljoprivredna gazdinstva" in MNO za Mašinstvo i industrijski softver (2023):1-31,
https://hdl.handle.net/21.15107/rcub_agrospace_6744 .

TY  - JOUR
AU  - Stanisavljević, Rade
AU  - Vuković, Aleksandar
AU  - Petrović, Dragan V.
AU  - Radojević, Rade L.
AU  - Barać, Saša
AU  - Mileusnić, Zoran
AU  - Tadić, Vjekoslav
PY  - 2021
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5925
AB  - This paper presents the tests results of three types of hay mowing machines (later in text: mowers), namely a self-propelled oscillatory mower-conditioner and two tractor-mounted mowers with oscillatory and rotary blades, used to mow alfalfa grown under dry land conditions in the region of central Serbia during three seasons in 2014, 2015 and 2016. Although characterized by older design, they are still commonly used at smaller and medium size farms in this region. Therefore, their optimal exploitation parameters are still of large importance for hay quality and production efficiency and sustainability. The exploitation parameters of all three mowers generally increased linearly with higher speeds, having high R2 values (over 0,8), with rare exceptions. The regression coefficients b clearly showed that the self-propelled mower-conditioner achieved maximum increase in production performance (b = 0,3606), compared with the oscillatory (b = 0,1158) and rotary mowers (b = 0,1414). Mower design had a significant (p ≤ 0,001) effect on cutting and chopping losses, production performance, and specific fuel consumption (p ≤ 0,05). The tests confirmed the superiority of the self-propelled mower over the two mowers aggregated with tractors.
PB  - Strojarski Facultet
T2  - Tehnicki Vjesnik
T1  - Efficiency of alfalfa hay mowing machines under the dryland conditions
EP  - 1510
IS  - 5
SP  - 1503
VL  - 28
DO  - 10.17559/TV-20200720092823
ER  - 

@article{
author = "Stanisavljević, Rade and Vuković, Aleksandar and Petrović, Dragan V. and Radojević, Rade L. and Barać, Saša and Mileusnić, Zoran and Tadić, Vjekoslav",
year = "2021",
abstract = "This paper presents the tests results of three types of hay mowing machines (later in text: mowers), namely a self-propelled oscillatory mower-conditioner and two tractor-mounted mowers with oscillatory and rotary blades, used to mow alfalfa grown under dry land conditions in the region of central Serbia during three seasons in 2014, 2015 and 2016. Although characterized by older design, they are still commonly used at smaller and medium size farms in this region. Therefore, their optimal exploitation parameters are still of large importance for hay quality and production efficiency and sustainability. The exploitation parameters of all three mowers generally increased linearly with higher speeds, having high R2 values (over 0,8), with rare exceptions. The regression coefficients b clearly showed that the self-propelled mower-conditioner achieved maximum increase in production performance (b = 0,3606), compared with the oscillatory (b = 0,1158) and rotary mowers (b = 0,1414). Mower design had a significant (p ≤ 0,001) effect on cutting and chopping losses, production performance, and specific fuel consumption (p ≤ 0,05). The tests confirmed the superiority of the self-propelled mower over the two mowers aggregated with tractors.",
publisher = "Strojarski Facultet",
journal = "Tehnicki Vjesnik",
title = "Efficiency of alfalfa hay mowing machines under the dryland conditions",
pages = "1510-1503",
number = "5",
volume = "28",
doi = "10.17559/TV-20200720092823"
}

Stanisavljević, R., Vuković, A., Petrović, D. V., Radojević, R. L., Barać, S., Mileusnić, Z.,& Tadić, V.. (2021). Efficiency of alfalfa hay mowing machines under the dryland conditions. in Tehnicki Vjesnik
Strojarski Facultet., 28(5), 1503-1510.
https://doi.org/10.17559/TV-20200720092823

Stanisavljević R, Vuković A, Petrović DV, Radojević RL, Barać S, Mileusnić Z, Tadić V. Efficiency of alfalfa hay mowing machines under the dryland conditions. in Tehnicki Vjesnik. 2021;28(5):1503-1510.
doi:10.17559/TV-20200720092823 .

Stanisavljević, Rade, Vuković, Aleksandar, Petrović, Dragan V., Radojević, Rade L., Barać, Saša, Mileusnić, Zoran, Tadić, Vjekoslav, "Efficiency of alfalfa hay mowing machines under the dryland conditions" in Tehnicki Vjesnik, 28, no. 5 (2021):1503-1510,
https://doi.org/10.17559/TV-20200720092823 . .

TY  - JOUR
AU  - Cerović, Vera B.
AU  - Petrović, Dragan
AU  - Radojević, Rade
AU  - Barać, Saša
AU  - Vuković, Aleksandar
PY  - 2018
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4833
AB  - At present, spreading of mineral fertilizers in Europe is most commonly performed using centrifugal disk spreaders with attached vanes. The motion of an ideal spherical homogeneous fertilizer particle along the straight vane attached to a flat rotating disc was analyzed in this paper. The analysis was performed in the non-inertial reference coordinate system. From the assumptions introduced to enable analytical describing of the real particle motion as well as the general tools of solid mechanics, the ordinary in-homogenous second-order differential equation having constant coefficients arose. Its solution represents an approximation of the real relative motion of the fertilizer particle along the straight radial vane fixed to the flat horizontal disc rotating at a constant angular velocity. However, the solution of this kind can be very useful for the optimization of centrifugal spreader working parameters.
AB  - U Evropi se za rasipanje granularnog mineralnog đubriva najčešće koriste centrifugalni rasipači sa lopaticama. U ovom radu je analizirano kretanje idealne, loptaste, homogene granule đubriva duž lopatica postavljenih po rotirajućem disku. Analiza je izvedena primenom neinercijalnog referentnog koordinatnog sistema. Uvođenjem određenih pretpostavki i primenom zakona teorijske mehanike za opisivanje kretanja čestice, formirana je nehomogena diferencijalna jednačina drugog reda sa konstantnim koeficijentima. Njeno rešenje aproksimira realno relativno kretanje čestice đubriva duž ravnih radijalnih lopatica pričvršćenih za horizontalni disk, koji se obrće konstantnom ugaonom brzinom. Dobijeno rešenje se svakako može koristiti za optimizaciju radnih parametara centrifugalnog rasipača sa diskom.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences (Belgrade)
T1  - On the fertilizer particle motion along the vane of a centrifugal spreader disc assuming pure sliding of the particle
T1  - Kretanje čestice đubriva duž lopatice centrifugalnog rasipača sa diskom pretpostavljajući čisto klizanje čestice
EP  - 97
IS  - 1
SP  - 83
VL  - 63
DO  - 10.2298/JAS1801083C
ER  - 

@article{
author = "Cerović, Vera B. and Petrović, Dragan and Radojević, Rade and Barać, Saša and Vuković, Aleksandar",
year = "2018",
abstract = "At present, spreading of mineral fertilizers in Europe is most commonly performed using centrifugal disk spreaders with attached vanes. The motion of an ideal spherical homogeneous fertilizer particle along the straight vane attached to a flat rotating disc was analyzed in this paper. The analysis was performed in the non-inertial reference coordinate system. From the assumptions introduced to enable analytical describing of the real particle motion as well as the general tools of solid mechanics, the ordinary in-homogenous second-order differential equation having constant coefficients arose. Its solution represents an approximation of the real relative motion of the fertilizer particle along the straight radial vane fixed to the flat horizontal disc rotating at a constant angular velocity. However, the solution of this kind can be very useful for the optimization of centrifugal spreader working parameters., U Evropi se za rasipanje granularnog mineralnog đubriva najčešće koriste centrifugalni rasipači sa lopaticama. U ovom radu je analizirano kretanje idealne, loptaste, homogene granule đubriva duž lopatica postavljenih po rotirajućem disku. Analiza je izvedena primenom neinercijalnog referentnog koordinatnog sistema. Uvođenjem određenih pretpostavki i primenom zakona teorijske mehanike za opisivanje kretanja čestice, formirana je nehomogena diferencijalna jednačina drugog reda sa konstantnim koeficijentima. Njeno rešenje aproksimira realno relativno kretanje čestice đubriva duž ravnih radijalnih lopatica pričvršćenih za horizontalni disk, koji se obrće konstantnom ugaonom brzinom. Dobijeno rešenje se svakako može koristiti za optimizaciju radnih parametara centrifugalnog rasipača sa diskom.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences (Belgrade)",
title = "On the fertilizer particle motion along the vane of a centrifugal spreader disc assuming pure sliding of the particle, Kretanje čestice đubriva duž lopatice centrifugalnog rasipača sa diskom pretpostavljajući čisto klizanje čestice",
pages = "97-83",
number = "1",
volume = "63",
doi = "10.2298/JAS1801083C"
}

Cerović, V. B., Petrović, D., Radojević, R., Barać, S.,& Vuković, A.. (2018). On the fertilizer particle motion along the vane of a centrifugal spreader disc assuming pure sliding of the particle. in Journal of Agricultural Sciences (Belgrade)
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 63(1), 83-97.
https://doi.org/10.2298/JAS1801083C

Cerović VB, Petrović D, Radojević R, Barać S, Vuković A. On the fertilizer particle motion along the vane of a centrifugal spreader disc assuming pure sliding of the particle. in Journal of Agricultural Sciences (Belgrade). 2018;63(1):83-97.
doi:10.2298/JAS1801083C .

Cerović, Vera B., Petrović, Dragan, Radojević, Rade, Barać, Saša, Vuković, Aleksandar, "On the fertilizer particle motion along the vane of a centrifugal spreader disc assuming pure sliding of the particle" in Journal of Agricultural Sciences (Belgrade), 63, no. 1 (2018):83-97,
https://doi.org/10.2298/JAS1801083C . .

TY  - JOUR
AU  - Barać, Saša
AU  - Petrović, Dragan
AU  - Vuković, Aleksandar
AU  - Biberdžić, Milan
AU  - Djikić, A.
AU  - Djokić, Dragoslav
PY  - 2017
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4566
AB  - Proper protection and quality work of sprayer enable the optimization of the pesticide application and reduces the harmful effects on the environment and human health. The efficiency of the implemented protection is reflected in several aspects, and one of the most important is the quality of the work of sprayers, that is, the equality of pesticides distribution with nozzles. The paper presents an analysis and comparison of test results in the framework of the inspection of field crop sprayers in the exploitation conditions of central Serbia, in accordance with European standards EN 13790, which prescribes methods and equipment for inspection. The aim of the research was to determine the quality of the work of chests and the uniformity of the flow of various sprays, depending on the defined parameters. The test equipment used 'AAMSSALVARANI' measuring equipment, and the flow of the nozzles was measured by the SN S001 individual nozzles. On the basis of the obtained results, it was concluded that the average values of the flow of the sprayer amounted to 0.954 l min-1 (typ A), 1.169 l min-1 (typ B), or until 1.190 l min-1 (sprayer typ C), where the coefficient of variation was in the range 12.24% to 29.49%.
AB  - Pravilnom zaštitom i kvalitetnim radom prskalica omogućuje se optimizacija aplikacije pesticida i smanjuje štetni uticaj na životnu sredinu i zdravlje ljudi. Efikasnost izvedene zaštite ogleda se sa više aspekata a jedan od najznačajnijih je kvalitet rada prskalica, odnosno uniformnost distribucije pesticida rasprskivačima. Rad predstavlja analizu i upoređenje rezultata ispitivanja u sklopu inspekcijske kontrole ratarskih prskalica u eksploatacionim uslovima centralne Srbije, u skladu sa evropskim normama EN 13790 koji propisuje metode i opremu za obavljanje inspekcije. Cilj istraživanja je bio da se utvrdi kvalitet rada prsaklica i uniformnost protoka različitih rasprskivača u zavisnosti od definisanih parametara. Za ispitivanje je korišćena merna oprema 'AAMSSALVARANI', a protok rasprskivača je meren pomoću ispitivača pojedinačnih rasprskivača SN S001. Na osnovu dobijenih rezultata zaključeno je da su prosečne vrednosti protoka rasprskivača iznosile 0,954 l min-1 (tip A), 1,169 l min-1 (tip B), odnosno 1,190 l min-1 (tip C), pri čemu je koeficijent varijacije bio u rasponu 12,24% do 29,49%.
PB  - Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad
T2  - Savremena poljoprivredna tehnika
T1  - Results of the examination of field crop sprayers in the conditions of central Serbia
T1  - Rezultati ispitivanja ratarskih prskalica u uslovima centralne Srbije
EP  - 26
IS  - 1
SP  - 17
VL  - 43
DO  - 10.5937/SavPoljTeh1701017B
ER  - 

@article{
author = "Barać, Saša and Petrović, Dragan and Vuković, Aleksandar and Biberdžić, Milan and Djikić, A. and Djokić, Dragoslav",
year = "2017",
abstract = "Proper protection and quality work of sprayer enable the optimization of the pesticide application and reduces the harmful effects on the environment and human health. The efficiency of the implemented protection is reflected in several aspects, and one of the most important is the quality of the work of sprayers, that is, the equality of pesticides distribution with nozzles. The paper presents an analysis and comparison of test results in the framework of the inspection of field crop sprayers in the exploitation conditions of central Serbia, in accordance with European standards EN 13790, which prescribes methods and equipment for inspection. The aim of the research was to determine the quality of the work of chests and the uniformity of the flow of various sprays, depending on the defined parameters. The test equipment used 'AAMSSALVARANI' measuring equipment, and the flow of the nozzles was measured by the SN S001 individual nozzles. On the basis of the obtained results, it was concluded that the average values of the flow of the sprayer amounted to 0.954 l min-1 (typ A), 1.169 l min-1 (typ B), or until 1.190 l min-1 (sprayer typ C), where the coefficient of variation was in the range 12.24% to 29.49%., Pravilnom zaštitom i kvalitetnim radom prskalica omogućuje se optimizacija aplikacije pesticida i smanjuje štetni uticaj na životnu sredinu i zdravlje ljudi. Efikasnost izvedene zaštite ogleda se sa više aspekata a jedan od najznačajnijih je kvalitet rada prskalica, odnosno uniformnost distribucije pesticida rasprskivačima. Rad predstavlja analizu i upoređenje rezultata ispitivanja u sklopu inspekcijske kontrole ratarskih prskalica u eksploatacionim uslovima centralne Srbije, u skladu sa evropskim normama EN 13790 koji propisuje metode i opremu za obavljanje inspekcije. Cilj istraživanja je bio da se utvrdi kvalitet rada prsaklica i uniformnost protoka različitih rasprskivača u zavisnosti od definisanih parametara. Za ispitivanje je korišćena merna oprema 'AAMSSALVARANI', a protok rasprskivača je meren pomoću ispitivača pojedinačnih rasprskivača SN S001. Na osnovu dobijenih rezultata zaključeno je da su prosečne vrednosti protoka rasprskivača iznosile 0,954 l min-1 (tip A), 1,169 l min-1 (tip B), odnosno 1,190 l min-1 (tip C), pri čemu je koeficijent varijacije bio u rasponu 12,24% do 29,49%.",
publisher = "Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad",
journal = "Savremena poljoprivredna tehnika",
title = "Results of the examination of field crop sprayers in the conditions of central Serbia, Rezultati ispitivanja ratarskih prskalica u uslovima centralne Srbije",
pages = "26-17",
number = "1",
volume = "43",
doi = "10.5937/SavPoljTeh1701017B"
}

Barać, S., Petrović, D., Vuković, A., Biberdžić, M., Djikić, A.,& Djokić, D.. (2017). Results of the examination of field crop sprayers in the conditions of central Serbia. in Savremena poljoprivredna tehnika
Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad., 43(1), 17-26.
https://doi.org/10.5937/SavPoljTeh1701017B

Barać S, Petrović D, Vuković A, Biberdžić M, Djikić A, Djokić D. Results of the examination of field crop sprayers in the conditions of central Serbia. in Savremena poljoprivredna tehnika. 2017;43(1):17-26.
doi:10.5937/SavPoljTeh1701017B .

Barać, Saša, Petrović, Dragan, Vuković, Aleksandar, Biberdžić, Milan, Djikić, A., Djokić, Dragoslav, "Results of the examination of field crop sprayers in the conditions of central Serbia" in Savremena poljoprivredna tehnika, 43, no. 1 (2017):17-26,
https://doi.org/10.5937/SavPoljTeh1701017B . .

TY  - JOUR
AU  - Barać, Saša
AU  - Petrović, Dragan
AU  - Radojević, Rade
AU  - Tomantschger, Kurt
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4295
AB  - Proper seed distribution over area and depth is the essential condition that provides later uniform plants distribution over the vegetation space. Paper presents statistical analysis of two drills accuracy results in winter rye sowing. Experiment was done in north Kosovo, during rye sowing with two mechanical seed drills, OLT Gama and IMT 634.23. Besides the comparative analysis of the sowing results achieved by these two drills, in the paper is tested and verified the applicability of Gaussian function for analytical description of longitudinal, transverse and depth distribution of winter rye seed at the experimental plot.
AB  - Pravilna raspodela semena po površini i dubini predstavlja osnovni uslov za obezbedjenje ravnomerne raspodele biljaka u vegetacionom prostoru. U radu je predstavljena statistička analiza rezultata ispitivanja tačnosti distribucije semena dve uskoredne sejalice u setvi ozime raži. Ispitivanja su izvedena na severu Kosova, u toku setve semena raži primenom dve sejalice Olt Gama 14 i IMT 634.23. Osim komparativne analize rezultata setve koji su dobijeni primenom ove dve sejalice, u radu je testirana i proverena primenljivost Gausove funkcije za analitičko opisivanje uzdužne, poprečne i raspodele semena ozime raži po dubini na eksperimentalnoj parceli.
PB  - Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad
T2  - Savremena poljoprivredna tehnika
T1  - Seed spacing and depth in winter rye sowing
T1  - Razmak i dubina setve semena ozime raži
EP  - 10
IS  - 1
SP  - 1
VL  - 42
DO  - 10.5937/SavPoljTeh1601001B
ER  - 

@article{
author = "Barać, Saša and Petrović, Dragan and Radojević, Rade and Tomantschger, Kurt",
year = "2016",
abstract = "Proper seed distribution over area and depth is the essential condition that provides later uniform plants distribution over the vegetation space. Paper presents statistical analysis of two drills accuracy results in winter rye sowing. Experiment was done in north Kosovo, during rye sowing with two mechanical seed drills, OLT Gama and IMT 634.23. Besides the comparative analysis of the sowing results achieved by these two drills, in the paper is tested and verified the applicability of Gaussian function for analytical description of longitudinal, transverse and depth distribution of winter rye seed at the experimental plot., Pravilna raspodela semena po površini i dubini predstavlja osnovni uslov za obezbedjenje ravnomerne raspodele biljaka u vegetacionom prostoru. U radu je predstavljena statistička analiza rezultata ispitivanja tačnosti distribucije semena dve uskoredne sejalice u setvi ozime raži. Ispitivanja su izvedena na severu Kosova, u toku setve semena raži primenom dve sejalice Olt Gama 14 i IMT 634.23. Osim komparativne analize rezultata setve koji su dobijeni primenom ove dve sejalice, u radu je testirana i proverena primenljivost Gausove funkcije za analitičko opisivanje uzdužne, poprečne i raspodele semena ozime raži po dubini na eksperimentalnoj parceli.",
publisher = "Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad",
journal = "Savremena poljoprivredna tehnika",
title = "Seed spacing and depth in winter rye sowing, Razmak i dubina setve semena ozime raži",
pages = "10-1",
number = "1",
volume = "42",
doi = "10.5937/SavPoljTeh1601001B"
}

Barać, S., Petrović, D., Radojević, R.,& Tomantschger, K.. (2016). Seed spacing and depth in winter rye sowing. in Savremena poljoprivredna tehnika
Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad., 42(1), 1-10.
https://doi.org/10.5937/SavPoljTeh1601001B

Barać S, Petrović D, Radojević R, Tomantschger K. Seed spacing and depth in winter rye sowing. in Savremena poljoprivredna tehnika. 2016;42(1):1-10.
doi:10.5937/SavPoljTeh1601001B .

Barać, Saša, Petrović, Dragan, Radojević, Rade, Tomantschger, Kurt, "Seed spacing and depth in winter rye sowing" in Savremena poljoprivredna tehnika, 42, no. 1 (2016):1-10,
https://doi.org/10.5937/SavPoljTeh1601001B . .

TY  - CONF
AU  - Barać, Saša
AU  - Petrović, Dragan
AU  - Radojević, Rade
AU  - Biberdžić, Milan
AU  - Dikić, Aleksandar B.
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3723
AB  - Forage harvesters should chop crop mass to particles having short and uniform lengths. Length distribution of forage particles represents an important parameter for ruminant's diet formulation, especially for dairy cattle. During silage production, harvest considerations should be focused to obtaining the adequate particle size distribution of the ensiling crop particles. This paper presents the results of mining studies of three different forage harvesters at harvesting maize for silage preparation. The aim of this testing is to determine the operational characteristics and quality of the following forage harvesters Claas Jaguar 675, Zmaj 350 and John Deere 5820. The average yield of the mass was about 26 t ha(-1). Based on these results, it is concluded that the losses due to cutting height range from 3.83% to 5.97%. Clear relation between working velocity of forage harvesters and losses caused by inappropriate cutting height was proved. These two parameters are directly proportional, i. e. their connection is strong (R-2 = 0.88) and linear. All three harvesters achieved fairly acceptable cut lengths of harvested maize particles. However, experimental results verify the operational supremacy of forage harvesters Class Jaguar 675 and John Deere 5820 with relation to the long used forage harvester Zmaj 350. The minimum deviation achieved for long chopped mass in relation to the setting, was recorded when storing silage with silage Claas Jaguar 675 in which the average length of chopped mass was 9.97 mm, where as for the fraction of length up to 10 mm was 69.87%.
PB  - Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb
C3  - Aktualni Zadaci Mehanizacije Poljoprivrede: Actual Tasks on Agricultural Engineering
T1  - Comparison of self propelled forage harvesters in maize harvesting
EP  - 385
SP  - 377
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_3723
ER  - 

@conference{
author = "Barać, Saša and Petrović, Dragan and Radojević, Rade and Biberdžić, Milan and Dikić, Aleksandar B.",
year = "2015",
abstract = "Forage harvesters should chop crop mass to particles having short and uniform lengths. Length distribution of forage particles represents an important parameter for ruminant's diet formulation, especially for dairy cattle. During silage production, harvest considerations should be focused to obtaining the adequate particle size distribution of the ensiling crop particles. This paper presents the results of mining studies of three different forage harvesters at harvesting maize for silage preparation. The aim of this testing is to determine the operational characteristics and quality of the following forage harvesters Claas Jaguar 675, Zmaj 350 and John Deere 5820. The average yield of the mass was about 26 t ha(-1). Based on these results, it is concluded that the losses due to cutting height range from 3.83% to 5.97%. Clear relation between working velocity of forage harvesters and losses caused by inappropriate cutting height was proved. These two parameters are directly proportional, i. e. their connection is strong (R-2 = 0.88) and linear. All three harvesters achieved fairly acceptable cut lengths of harvested maize particles. However, experimental results verify the operational supremacy of forage harvesters Class Jaguar 675 and John Deere 5820 with relation to the long used forage harvester Zmaj 350. The minimum deviation achieved for long chopped mass in relation to the setting, was recorded when storing silage with silage Claas Jaguar 675 in which the average length of chopped mass was 9.97 mm, where as for the fraction of length up to 10 mm was 69.87%.",
publisher = "Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb",
journal = "Aktualni Zadaci Mehanizacije Poljoprivrede: Actual Tasks on Agricultural Engineering",
title = "Comparison of self propelled forage harvesters in maize harvesting",
pages = "385-377",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_3723"
}

Barać, S., Petrović, D., Radojević, R., Biberdžić, M.,& Dikić, A. B.. (2015). Comparison of self propelled forage harvesters in maize harvesting. in Aktualni Zadaci Mehanizacije Poljoprivrede: Actual Tasks on Agricultural Engineering
Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb., 43, 377-385.
https://hdl.handle.net/21.15107/rcub_agrospace_3723

Barać S, Petrović D, Radojević R, Biberdžić M, Dikić AB. Comparison of self propelled forage harvesters in maize harvesting. in Aktualni Zadaci Mehanizacije Poljoprivrede: Actual Tasks on Agricultural Engineering. 2015;43:377-385.
https://hdl.handle.net/21.15107/rcub_agrospace_3723 .

Barać, Saša, Petrović, Dragan, Radojević, Rade, Biberdžić, Milan, Dikić, Aleksandar B., "Comparison of self propelled forage harvesters in maize harvesting" in Aktualni Zadaci Mehanizacije Poljoprivrede: Actual Tasks on Agricultural Engineering, 43 (2015):377-385,
https://hdl.handle.net/21.15107/rcub_agrospace_3723 .

TY  - JOUR
AU  - Barać, Saša
AU  - Petrović, Dragan
AU  - Djikić, A.
AU  - Biberdžić, Milan
AU  - Koprivica, Ranko
PY  - 2015
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/3875
AB  - The paper presents an analysis and comparison of the results of exploitation testing the different machines for soil tillage under conventional and reduced tillage, as well as evaluating the quality of the two types of sowing in the production of buckwheat and winter rye, in the conditions of northern Kosovo and Metohia. The previous crop was mercantile maize. The aim of this study was to determine the effects of the aggregate labor indicators for tillage and seeding, in the production of winter rye and buckwheat, and the results will enable proper selection of appropriate technological and technical systems and pointing out the advantages and disadvantages of the applied systems for tillage and seeding. In a variant of conventional tillage in relation to reduced tillage fuel consumption was higher by 27.41 up to 27.73%, while the yields of buckwheat was lower by 22.02%, and winter rye up to 20.18%. Measured values of longitudinal and lateral distances, and depths of buckwheat and rye seeds, are numerically processed using inverse distance interpolation method. Consequently, an appropriate contour maps that present distributions of relative frequencies with respect to longitudinal and lateral seeding distances, as well as seeding depths, are drawn. These maps clearly illustrate accuracy quality of work and operational stability of two analyzed seeding machines having quire different designs of seeding apparatus, in the working conditions of buckwheat and rye seeding.
AB  - Rad predstavlja analizu i upoređenje rezultata eksploatacionih ispitivanja različitih mašina za obradu zemljišta u okviru konvencionale i redukovane obrade, kao i ocenu kvaliteta rada dva tipa sejalica u proizvodnji heljde i ozime raži u uslovima severnog Kosova i Metohije. Predkultura je bila merkantilni kukuruz. Cilj istraživanja je bio da se utvrde pokazatelji efekata rada agregata za obradu zemljišta i setvu u proizvodnji heljde i ozime raži, a dobijeni rezultati omogućiće pravilan izbor odgovarajućeg tehnološko-tehničkog sistema i ukazati na prednosti i nedostatke primenjenih sistema za obradu zemljišta i setvu. U varijanti konvencionalne obrade u odnosu na redukovanu obradu potrošnja goriva je bila veća za 27,41-27,73%, pri čemu su ostvareni prinosi heljde bili manji za 22,02%, a ozime raži za 20,18%. Kvalitet rada sejalica obuhvatio je određivanje uzdužnog, poprečnog i rasporeda zrna po dubini setvenog sloja. Izmerene vrednosti uzdužnih i poprečnih rastojanja kao i dubine setve heljde i raži, su numerički obrađene metodom interpolacije inverzne udaljenosti. Na osnovu toga, urađene su odgovarajuće konturne mape koje predstavljaju distribucije relativne učestalosti u odnosu na uzdužna i bočna rastojanja semena pri setvi, kao i dubinu setve. Ove mape jasno pokazuju kvalitet rada i radnu stabilnost dveju analiziranih sejalica sa različitom konstrukcijom setvenog aparata, u uslovima rada pri setvi heljde i raži.
PB  - Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad
T2  - Savremena poljoprivredna tehnika
T1  - Results of testing the machineries for soil tillage and seeding the buckwheat and rye
T1  - Rezultati ispitivanja mašina za obradu zemljišta i setvu heljde i raži
EP  - 34
IS  - 1
SP  - 25
VL  - 41
DO  - 10.5937/SavPoljTeh1501025B
ER  - 

@article{
author = "Barać, Saša and Petrović, Dragan and Djikić, A. and Biberdžić, Milan and Koprivica, Ranko",
year = "2015",
abstract = "The paper presents an analysis and comparison of the results of exploitation testing the different machines for soil tillage under conventional and reduced tillage, as well as evaluating the quality of the two types of sowing in the production of buckwheat and winter rye, in the conditions of northern Kosovo and Metohia. The previous crop was mercantile maize. The aim of this study was to determine the effects of the aggregate labor indicators for tillage and seeding, in the production of winter rye and buckwheat, and the results will enable proper selection of appropriate technological and technical systems and pointing out the advantages and disadvantages of the applied systems for tillage and seeding. In a variant of conventional tillage in relation to reduced tillage fuel consumption was higher by 27.41 up to 27.73%, while the yields of buckwheat was lower by 22.02%, and winter rye up to 20.18%. Measured values of longitudinal and lateral distances, and depths of buckwheat and rye seeds, are numerically processed using inverse distance interpolation method. Consequently, an appropriate contour maps that present distributions of relative frequencies with respect to longitudinal and lateral seeding distances, as well as seeding depths, are drawn. These maps clearly illustrate accuracy quality of work and operational stability of two analyzed seeding machines having quire different designs of seeding apparatus, in the working conditions of buckwheat and rye seeding., Rad predstavlja analizu i upoređenje rezultata eksploatacionih ispitivanja različitih mašina za obradu zemljišta u okviru konvencionale i redukovane obrade, kao i ocenu kvaliteta rada dva tipa sejalica u proizvodnji heljde i ozime raži u uslovima severnog Kosova i Metohije. Predkultura je bila merkantilni kukuruz. Cilj istraživanja je bio da se utvrde pokazatelji efekata rada agregata za obradu zemljišta i setvu u proizvodnji heljde i ozime raži, a dobijeni rezultati omogućiće pravilan izbor odgovarajućeg tehnološko-tehničkog sistema i ukazati na prednosti i nedostatke primenjenih sistema za obradu zemljišta i setvu. U varijanti konvencionalne obrade u odnosu na redukovanu obradu potrošnja goriva je bila veća za 27,41-27,73%, pri čemu su ostvareni prinosi heljde bili manji za 22,02%, a ozime raži za 20,18%. Kvalitet rada sejalica obuhvatio je određivanje uzdužnog, poprečnog i rasporeda zrna po dubini setvenog sloja. Izmerene vrednosti uzdužnih i poprečnih rastojanja kao i dubine setve heljde i raži, su numerički obrađene metodom interpolacije inverzne udaljenosti. Na osnovu toga, urađene su odgovarajuće konturne mape koje predstavljaju distribucije relativne učestalosti u odnosu na uzdužna i bočna rastojanja semena pri setvi, kao i dubinu setve. Ove mape jasno pokazuju kvalitet rada i radnu stabilnost dveju analiziranih sejalica sa različitom konstrukcijom setvenog aparata, u uslovima rada pri setvi heljde i raži.",
publisher = "Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad",
journal = "Savremena poljoprivredna tehnika",
title = "Results of testing the machineries for soil tillage and seeding the buckwheat and rye, Rezultati ispitivanja mašina za obradu zemljišta i setvu heljde i raži",
pages = "34-25",
number = "1",
volume = "41",
doi = "10.5937/SavPoljTeh1501025B"
}

Barać, S., Petrović, D., Djikić, A., Biberdžić, M.,& Koprivica, R.. (2015). Results of testing the machineries for soil tillage and seeding the buckwheat and rye. in Savremena poljoprivredna tehnika
Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad., 41(1), 25-34.
https://doi.org/10.5937/SavPoljTeh1501025B

Barać S, Petrović D, Djikić A, Biberdžić M, Koprivica R. Results of testing the machineries for soil tillage and seeding the buckwheat and rye. in Savremena poljoprivredna tehnika. 2015;41(1):25-34.
doi:10.5937/SavPoljTeh1501025B .

Barać, Saša, Petrović, Dragan, Djikić, A., Biberdžić, Milan, Koprivica, Ranko, "Results of testing the machineries for soil tillage and seeding the buckwheat and rye" in Savremena poljoprivredna tehnika, 41, no. 1 (2015):25-34,
https://doi.org/10.5937/SavPoljTeh1501025B . .

TY  - CONF
AU  - Radojević, Rade
AU  - Petrović, Dragan
AU  - Barać, Saša
AU  - Stojanović, B
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5536
AB  - Alfalfa is one of the most important crops for forage production. Traditional method of alfalfa conservation assumes hay preparation. However, nowadays it is also commonly processed in the form of silage and haylage. Physiological effects of forages that are included in diets depend on plant species, stage of maturity, method of preservation and diet composition. Physical characteristics of rations for ruminants are primarily influenced by dietary forage to concentrate ratio, type of forages and concentrates, and mean particle size of feeds. Length distribution of forage particles represents an important parameter for ruminant’s diet formulation, especially for dairy cattle. During silage production, harvest considerations should be focused to obtaining the adequate particle size distribution of the ensiling crop particles.
This paper presents results of testing three contemporary types of self-propelled silage harvesters applied in the alfalfa haylage preparation: Claas Jaguar 950, Krone Big X 700 and Krone Big X 500. All machines were adapted with pick-up headers. In the study are analyzed length distributions of chopped alfalfa particles. Resulting frequency distributions of produced haylage are characterised by high mass percentage of the fraction comprehending the largest particles. It is also evident that harvester Class Jaguar 950 achieved the mean chopping length closest to preset value.
C3  - International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia
T1  - Cut Length Distributions of Haylage Particles
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5536
ER  - 

@conference{
author = "Radojević, Rade and Petrović, Dragan and Barać, Saša and Stojanović, B",
year = "2014",
abstract = "Alfalfa is one of the most important crops for forage production. Traditional method of alfalfa conservation assumes hay preparation. However, nowadays it is also commonly processed in the form of silage and haylage. Physiological effects of forages that are included in diets depend on plant species, stage of maturity, method of preservation and diet composition. Physical characteristics of rations for ruminants are primarily influenced by dietary forage to concentrate ratio, type of forages and concentrates, and mean particle size of feeds. Length distribution of forage particles represents an important parameter for ruminant’s diet formulation, especially for dairy cattle. During silage production, harvest considerations should be focused to obtaining the adequate particle size distribution of the ensiling crop particles.
This paper presents results of testing three contemporary types of self-propelled silage harvesters applied in the alfalfa haylage preparation: Claas Jaguar 950, Krone Big X 700 and Krone Big X 500. All machines were adapted with pick-up headers. In the study are analyzed length distributions of chopped alfalfa particles. Resulting frequency distributions of produced haylage are characterised by high mass percentage of the fraction comprehending the largest particles. It is also evident that harvester Class Jaguar 950 achieved the mean chopping length closest to preset value.",
journal = "International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia",
title = "Cut Length Distributions of Haylage Particles",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5536"
}

Radojević, R., Petrović, D., Barać, S.,& Stojanović, B.. (2014). Cut Length Distributions of Haylage Particles. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia.
https://hdl.handle.net/21.15107/rcub_agrospace_5536

Radojević R, Petrović D, Barać S, Stojanović B. Cut Length Distributions of Haylage Particles. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia. 2014;.
https://hdl.handle.net/21.15107/rcub_agrospace_5536 .

Radojević, Rade, Petrović, Dragan, Barać, Saša, Stojanović, B, "Cut Length Distributions of Haylage Particles" in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia (2014),
https://hdl.handle.net/21.15107/rcub_agrospace_5536 .

TY  - CONF
AU  - Barać, Saša
AU  - Radojević, Rade
AU  - Petrović, Dragan
AU  - Vuković, A
AU  - Biberdzić, M
PY  - 2014
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/5544
AB  - The paper presents testing results of three silage combines employed in maize silage preparation in Toplica region. It is focused on determination of technical working parameters of tested machines. Achieved results verified the superiority of silage combine John Deere 5820, which produced the chopped mass having particle lengths of the smallest deviation with respect to the preset cutting length. In this case, the average length of chopped mass was 9.9 mm, having 69 % mass in the range up to 8 mm. The other two silage combines produced lower mass percentage of this fraction and larger variations of particle lengths with respect to the preset length. Minimum mass flow rate was evidenced for the silage combine Fortschrit E-286: 7.3 kg s-1 (26.3 t h-1) and the surface productivity of 0.83 ha h-1, at the average speed of 4.0 km h-1. Maximum production rate was achieved with silage combine John Deere 5820: 10.9 kg s-1 (39.1 t h-1) at average working velocity of 4.7 km h-1 and surface efficiency of 1.21 ha h-1.
C3  - International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia
T1  - Combines Work Quality in Maize Silage Production
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_5544
ER  - 

@conference{
author = "Barać, Saša and Radojević, Rade and Petrović, Dragan and Vuković, A and Biberdzić, M",
year = "2014",
abstract = "The paper presents testing results of three silage combines employed in maize silage preparation in Toplica region. It is focused on determination of technical working parameters of tested machines. Achieved results verified the superiority of silage combine John Deere 5820, which produced the chopped mass having particle lengths of the smallest deviation with respect to the preset cutting length. In this case, the average length of chopped mass was 9.9 mm, having 69 % mass in the range up to 8 mm. The other two silage combines produced lower mass percentage of this fraction and larger variations of particle lengths with respect to the preset length. Minimum mass flow rate was evidenced for the silage combine Fortschrit E-286: 7.3 kg s-1 (26.3 t h-1) and the surface productivity of 0.83 ha h-1, at the average speed of 4.0 km h-1. Maximum production rate was achieved with silage combine John Deere 5820: 10.9 kg s-1 (39.1 t h-1) at average working velocity of 4.7 km h-1 and surface efficiency of 1.21 ha h-1.",
journal = "International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia",
title = "Combines Work Quality in Maize Silage Production",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_5544"
}

Barać, S., Radojević, R., Petrović, D., Vuković, A.,& Biberdzić, M.. (2014). Combines Work Quality in Maize Silage Production. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia.
https://hdl.handle.net/21.15107/rcub_agrospace_5544

Barać S, Radojević R, Petrović D, Vuković A, Biberdzić M. Combines Work Quality in Maize Silage Production. in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia. 2014;.
https://hdl.handle.net/21.15107/rcub_agrospace_5544 .

Barać, Saša, Radojević, Rade, Petrović, Dragan, Vuković, A, Biberdzić, M, "Combines Work Quality in Maize Silage Production" in International Symposium on Animal Science 2014, 23-25th September 2014, Belgrade, Serbia (2014),
https://hdl.handle.net/21.15107/rcub_agrospace_5544 .

TY  - CONF
AU  - Dimitrijević, Aleksandra
AU  - Dević, Milan
AU  - Bajkin, Andjelko
AU  - Ponjičan, Ondrej
AU  - Barać, Saša
PY  - 2011
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2609
AB  - In this paper the influence of greenhouse construction on energy efficiency in winter lettuce production was estimated fir different double plastic covered greenhouses in Serbia region. In order to see whether the greenhouse structure influences energy consumption, energy inputs were estimated for lettuce production in four different greenhouse structures (a tunnel and gutter connected structure and three multi-span greenhouses). On the basis of lettuce production output and the energy input specific energy input, energy output-input ratio and energy productivity were estimated. Results show that the lowest energy consumption was obtained for gutter connected greenhouse with two bays, 3.11 MJ/m(2). The highest energy consumption was multi-span greenhouse with thirteen bays, 3.30 MJ/m(2). The highest value for output-input ratio was calculated for the multi-span greenhouse with thirteen bap, 0.85 and the lowest for the tunnel structure, 0.47. Regression equations show the nature of the greenhouse structure influence on these parameters.
PB  - Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb
C3  - Aktualni Zadaci Mehanizacije Poljoprivrede
T1  - Energy efficiency of the lettuce greenhouse production
EP  - +
SP  - 463
VL  - 39
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_2609
ER  - 

@conference{
author = "Dimitrijević, Aleksandra and Dević, Milan and Bajkin, Andjelko and Ponjičan, Ondrej and Barać, Saša",
year = "2011",
abstract = "In this paper the influence of greenhouse construction on energy efficiency in winter lettuce production was estimated fir different double plastic covered greenhouses in Serbia region. In order to see whether the greenhouse structure influences energy consumption, energy inputs were estimated for lettuce production in four different greenhouse structures (a tunnel and gutter connected structure and three multi-span greenhouses). On the basis of lettuce production output and the energy input specific energy input, energy output-input ratio and energy productivity were estimated. Results show that the lowest energy consumption was obtained for gutter connected greenhouse with two bays, 3.11 MJ/m(2). The highest energy consumption was multi-span greenhouse with thirteen bays, 3.30 MJ/m(2). The highest value for output-input ratio was calculated for the multi-span greenhouse with thirteen bap, 0.85 and the lowest for the tunnel structure, 0.47. Regression equations show the nature of the greenhouse structure influence on these parameters.",
publisher = "Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb",
journal = "Aktualni Zadaci Mehanizacije Poljoprivrede",
title = "Energy efficiency of the lettuce greenhouse production",
pages = "+-463",
volume = "39",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_2609"
}

Dimitrijević, A., Dević, M., Bajkin, A., Ponjičan, O.,& Barać, S.. (2011). Energy efficiency of the lettuce greenhouse production. in Aktualni Zadaci Mehanizacije Poljoprivrede
Agronomski fakultet Sveucilista u Zagrebu, 10000 Zagreb., 39, 463-+.
https://hdl.handle.net/21.15107/rcub_agrospace_2609

Dimitrijević A, Dević M, Bajkin A, Ponjičan O, Barać S. Energy efficiency of the lettuce greenhouse production. in Aktualni Zadaci Mehanizacije Poljoprivrede. 2011;39:463-+.
https://hdl.handle.net/21.15107/rcub_agrospace_2609 .

Dimitrijević, Aleksandra, Dević, Milan, Bajkin, Andjelko, Ponjičan, Ondrej, Barać, Saša, "Energy efficiency of the lettuce greenhouse production" in Aktualni Zadaci Mehanizacije Poljoprivrede, 39 (2011):463-+,
https://hdl.handle.net/21.15107/rcub_agrospace_2609 .

TY  - JOUR
AU  - Djokić, Dragoslav
AU  - Stanisavljević, Rade
AU  - Marković, Jordan
AU  - Mileusnić, Zoran
AU  - Dimitrijević, Aleksandra
AU  - Barać, Saša
PY  - 2010
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/2234
AB  - In the process of alfalfa seed processing, all relevant parameters are directly dependant on presence of weed species and other impurities in natural seed, as well as on the equipment used. The higher amount of weed in natural alfalfa seed lowers the total amount of processed seed, making the processing harder and more expensive. In alfalfa crop, quarantine weeds are especially harmful, such as dodder (Cuscuta spp.) and curly dock (Rumex spp.). One of the greatest problems in alfalfa planting is the presence of harmful parasitic flowering plant dodder (Cuscuta spp.) which is typical weed - alfalfa parasite that lowers hay and seed production. The paper shows the results of the analysis of influence different weed content from two lots of natural alfalfa seed (I, II) of different purity, on the relevant processing parameters. Processing of the both lots of seed was done on the same equipment. The relevant parameters that define alfalfa seed processing effects were: pure seed (%), weed seeds and seeds of other cultures (%), inert matters (%), seed processing time (h), consumption of active (kWh) and reactive power (kVArh), processed seed quantity (kg), metal powder (kg) and water (l) consumption, processing output (%) and seed losses (%).
AB  - U procesu dorade semena lucerke svi relevantni parametri dorade direktno zavise od zastupljenosti korovskih vrsta i ostalih primesa u naturalnom semenu, kao i od sistema mašina koji se koristi za doradu. Veći sadržaj štetnih korova u naturalnom semenu lucerke smanjuje ukupnu količinu dorađenog semena, otežava i poskupljuje doradu. U usevu lucerke posebno su štetni karantinski korovi, vilina kosica (Cuscuta spp.) i štavelj (Rumex spp.). Jedan od najvećih problema u gajenju lucerke je prisustvo štetne parazitske cvetnice viline kosice (Cuscuta spp.) koja je tipičan korov - parazit lucerke koji smanjuje proizvodnju sena i semena. U radu su prikazani rezultati analize uticaja različitog sadržaja semena korova u dve partije naturalnog semena lucerke (I, II) različitih čistoća, na relevantne parametre dorade. Dorada obe partije semena obavljala se na istom sistemu mašina. Relevantni parametri koji definišu efekte dorade semena lucerke bili su: čisto seme (%), seme korova i seme drugih kultura (%), inertne materije (%), vreme dorade semena (h), utrošak aktivne (kWh) i reaktivne električne energije (kVArh), količina dorađenog semena (kg), utrošak metalnog praha (kg) i vode (l), randman dorade (%) i gubici semena (%).
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd
T2  - Poljoprivredna tehnika
T1  - Quarantine weeds in alfalfa seed and their influence on processing efficiency
T1  - Karantinski korovi u semenu lucerke i njihov uticaj na efikasnost dorade
EP  - 63
IS  - 3
SP  - 53
VL  - 35
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_2234
ER  - 

@article{
author = "Djokić, Dragoslav and Stanisavljević, Rade and Marković, Jordan and Mileusnić, Zoran and Dimitrijević, Aleksandra and Barać, Saša",
year = "2010",
abstract = "In the process of alfalfa seed processing, all relevant parameters are directly dependant on presence of weed species and other impurities in natural seed, as well as on the equipment used. The higher amount of weed in natural alfalfa seed lowers the total amount of processed seed, making the processing harder and more expensive. In alfalfa crop, quarantine weeds are especially harmful, such as dodder (Cuscuta spp.) and curly dock (Rumex spp.). One of the greatest problems in alfalfa planting is the presence of harmful parasitic flowering plant dodder (Cuscuta spp.) which is typical weed - alfalfa parasite that lowers hay and seed production. The paper shows the results of the analysis of influence different weed content from two lots of natural alfalfa seed (I, II) of different purity, on the relevant processing parameters. Processing of the both lots of seed was done on the same equipment. The relevant parameters that define alfalfa seed processing effects were: pure seed (%), weed seeds and seeds of other cultures (%), inert matters (%), seed processing time (h), consumption of active (kWh) and reactive power (kVArh), processed seed quantity (kg), metal powder (kg) and water (l) consumption, processing output (%) and seed losses (%)., U procesu dorade semena lucerke svi relevantni parametri dorade direktno zavise od zastupljenosti korovskih vrsta i ostalih primesa u naturalnom semenu, kao i od sistema mašina koji se koristi za doradu. Veći sadržaj štetnih korova u naturalnom semenu lucerke smanjuje ukupnu količinu dorađenog semena, otežava i poskupljuje doradu. U usevu lucerke posebno su štetni karantinski korovi, vilina kosica (Cuscuta spp.) i štavelj (Rumex spp.). Jedan od najvećih problema u gajenju lucerke je prisustvo štetne parazitske cvetnice viline kosice (Cuscuta spp.) koja je tipičan korov - parazit lucerke koji smanjuje proizvodnju sena i semena. U radu su prikazani rezultati analize uticaja različitog sadržaja semena korova u dve partije naturalnog semena lucerke (I, II) različitih čistoća, na relevantne parametre dorade. Dorada obe partije semena obavljala se na istom sistemu mašina. Relevantni parametri koji definišu efekte dorade semena lucerke bili su: čisto seme (%), seme korova i seme drugih kultura (%), inertne materije (%), vreme dorade semena (h), utrošak aktivne (kWh) i reaktivne električne energije (kVArh), količina dorađenog semena (kg), utrošak metalnog praha (kg) i vode (l), randman dorade (%) i gubici semena (%).",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd",
journal = "Poljoprivredna tehnika",
title = "Quarantine weeds in alfalfa seed and their influence on processing efficiency, Karantinski korovi u semenu lucerke i njihov uticaj na efikasnost dorade",
pages = "63-53",
number = "3",
volume = "35",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_2234"
}

Djokić, D., Stanisavljević, R., Marković, J., Mileusnić, Z., Dimitrijević, A.,& Barać, S.. (2010). Quarantine weeds in alfalfa seed and their influence on processing efficiency. in Poljoprivredna tehnika
Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd., 35(3), 53-63.
https://hdl.handle.net/21.15107/rcub_agrospace_2234

Djokić D, Stanisavljević R, Marković J, Mileusnić Z, Dimitrijević A, Barać S. Quarantine weeds in alfalfa seed and their influence on processing efficiency. in Poljoprivredna tehnika. 2010;35(3):53-63.
https://hdl.handle.net/21.15107/rcub_agrospace_2234 .

Djokić, Dragoslav, Stanisavljević, Rade, Marković, Jordan, Mileusnić, Zoran, Dimitrijević, Aleksandra, Barać, Saša, "Quarantine weeds in alfalfa seed and their influence on processing efficiency" in Poljoprivredna tehnika, 35, no. 3 (2010):53-63,
https://hdl.handle.net/21.15107/rcub_agrospace_2234 .

TY  - JOUR
AU  - Mileusnić, Zoran
AU  - Djević, Milan
AU  - Miodragović, Rajko
AU  - Barać, Saša
PY  - 2006
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/1305
AB  - This paper presents analysis of technical tractor characteristic of some famous world producers in 6 varieties and 24 models. Subject was relation of engine power and tractors weight in optimal working regime. The aim of researching was to give edit ional information about optimal using regime, in sense of achieving productivity that is appropriate for pulling and energy tractors potential.
AB  - U rada je izvršena analiza tehničkih karakteristika traktora renomiranih proizvođača i to 6 serija i 24 modela. Predmet rada je izučavanje odnosa snage i mase traktora pri optimalnom režimu rada. Cilj rada je da da dopunske informacije o optimalnom načinu korišćenja traktora radi postizanja učinka koji odgovara vučno-energetskom potencijalu traktora.
PB  - Naučno društvo za pogonske mašine, traktore i održavanje, Novi Sad i Univerzitet u Novom Sadu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Novi Sad
T2  - Traktori i pogonske mašine
T1  - Analysis technical and exploitation characteristics tractors
T1  - Analiza tehničko eksploatacionih karakteristika traktora
EP  - 26
IS  - 3-4
SP  - 20
VL  - 11
UR  - https://hdl.handle.net/21.15107/rcub_agrospace_1305
ER  - 

@article{
author = "Mileusnić, Zoran and Djević, Milan and Miodragović, Rajko and Barać, Saša",
year = "2006",
abstract = "This paper presents analysis of technical tractor characteristic of some famous world producers in 6 varieties and 24 models. Subject was relation of engine power and tractors weight in optimal working regime. The aim of researching was to give edit ional information about optimal using regime, in sense of achieving productivity that is appropriate for pulling and energy tractors potential., U rada je izvršena analiza tehničkih karakteristika traktora renomiranih proizvođača i to 6 serija i 24 modela. Predmet rada je izučavanje odnosa snage i mase traktora pri optimalnom režimu rada. Cilj rada je da da dopunske informacije o optimalnom načinu korišćenja traktora radi postizanja učinka koji odgovara vučno-energetskom potencijalu traktora.",
publisher = "Naučno društvo za pogonske mašine, traktore i održavanje, Novi Sad i Univerzitet u Novom Sadu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Novi Sad",
journal = "Traktori i pogonske mašine",
title = "Analysis technical and exploitation characteristics tractors, Analiza tehničko eksploatacionih karakteristika traktora",
pages = "26-20",
number = "3-4",
volume = "11",
url = "https://hdl.handle.net/21.15107/rcub_agrospace_1305"
}

Mileusnić, Z., Djević, M., Miodragović, R.,& Barać, S.. (2006). Analysis technical and exploitation characteristics tractors. in Traktori i pogonske mašine
Naučno društvo za pogonske mašine, traktore i održavanje, Novi Sad i Univerzitet u Novom Sadu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Novi Sad., 11(3-4), 20-26.
https://hdl.handle.net/21.15107/rcub_agrospace_1305

Mileusnić Z, Djević M, Miodragović R, Barać S. Analysis technical and exploitation characteristics tractors. in Traktori i pogonske mašine. 2006;11(3-4):20-26.
https://hdl.handle.net/21.15107/rcub_agrospace_1305 .

Mileusnić, Zoran, Djević, Milan, Miodragović, Rajko, Barać, Saša, "Analysis technical and exploitation characteristics tractors" in Traktori i pogonske mašine, 11, no. 3-4 (2006):20-26,
https://hdl.handle.net/21.15107/rcub_agrospace_1305 .