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Приказ резултата 51-60 од 231
Effect of land use on group and fractional composition of humus in rendzina soils in Serbia / Uticaj načina korišćenja zemljišta na grupni i frakcioni sastav humusa u rendzinama Srbije
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2007)
The effect of land use on group and fractional composition of humus was examined in 13 rendzina profiles under forests, 12 profiles under grassland and 8 profiles under arable fields in different parts of Serbia where ...
Estimation of chemical availability indexes of soil nitrogen / Ocenjivanje hemijskih indeksa pristupačnosti azota zemljišta
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2008)
The researches were performed on brown forest soil used within stationary experiment with a certain fertilizing system for more than 40 years. Researches were made on experiment variants where the increasing dosage of ...
Economic analysis of wheat production on family farms / Ekonomska analiza proizvodnje pšenice na porodičnim gazdinstvima
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2010)
Serbian agricultural producers are currently facing a large number of challenges which have a significant influence on their business activities. Continuous monitoring and evaluation of existing family farms business ...
Some characteristics of groundwater in Southeast Srem / Neke karakteristike podzemnih voda u jugoistočnom Sremu
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2009)
The area of Southeast Srem is rich in groundwater. Water regime of the first aquifer has a great significance from the standpoint of agricultural production. 32 piezometers were singled out and groundwater depth was measured ...
Natural isotopes 238U and 40K content in rigosol from the area of school estate good 'Radmilovac' of Faculty of Agriculture, Zemun / Sadržaj prirodnih izotopa 238U i 40K u rigosolu sa područja Oglednog školskog dobra 'Radmilovac', Poljoprivrednog fakulteta u Zemunu
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2009)
Distribution of natural gamma-emitting radionuclides 238U and 40K were determined in the soil profiles from the peach-trees field on experimental farm Radmilovac, southeast Belgrade. Internal soil morphology has been changed ...
Influence of mixing-distribution trailers design on feed distribution uniformity / Uticaj koncepcije mikser prikolica na uniformnost distribucije hraniva
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2008)
The aim of this investigation was analysis of main mixing-distribution trailer working parameters. This will serve as a base for evaluation of possibilities for obtaining better feed preparation quality on farms, more ...
The effect of crop density and applied nitrogen on the interaction between Lolium italicum and Galium aparine / Uticaj gustine useva i primenjenog azota na interakciju Lolium italicum i Galium aparine
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2008)
The effect of different densities of Italian ryegrass (Lolium italicum L.: G1- 5 kg/ha seeds, 60 cm row spacing; G2- 5 kg/ha seeds, 20 cm row spacing; G3- 20 kg/ha seeds, 60 cm row spacing, and G4- 20 kg/ha seeds, 20 cm ...
Plant protection products in organic grapevine growing / Sredstva za zaštitu bilja u organskoj proizvodnji grožđa
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2010)
Pests and grapevine diseases in organic production are suppressed by preventive measures with a view to reducing the impact of the attack. Allowed substances acting on patogenous fungi, insects, mites and other harmful ...
Determination of fluoride content in drinking water and tea infusions using fluoride ion selective electrode / Određivanje sadržaja fluorida u vodi za piće i čajevima fluorid-selektivnom elektrodom
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2007)
Potentiometric analysis of fluoride content (as F- ion) in solutions by using fluoride ion-selective electrode is simple, reliable and cheap. Very small concentrations of fluoride-ions (to 10-6 mol/dm3) can be determined ...
Influence of different ventilation systems on inhalable and respirable dust particles concentrations distribution in weaning and finishing fattening pig houses / Proučavanje uticaja različitih ventilacionih sistema na raspodelu koncentracija čestica inhalabilne i respirabilne prašine u objektima za odgoj i završni tov svinja
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2003)
The application of different mechanical extraction ventilation systems in reducing and controlling dust concentrations in weaned and finishing pig houses was analyzed and discussed in this work. Dust concentrations and ...