Претраживање
Приказ резултата 81-90 од 174
Analysis of stimulus apitechnical measures in bee society spring development / Analiza podsticajnih apitehničkih mera u prolećnom razvoju pčelinjih društava
(Institut za stočarstvo, Beograd, 2004)
Influence of stimulus apitechnical measures on bee community biological development in spring was examined in this paper. Bee societies were placed in Langstrot-rut beehives with 10 frames, settled with bees belonging to ...
Effect of N deficiency on leaf growth and cell wall peroxidase activity in contrasting maize genotypes
(Springer, Dordrecht, 2004)
Two maize genotypes differing in leaf elongation rate (high-LER and low-LER) were used for the investigation of the effects of nitrogen deficiency on leaf growth and development and activity of enzyme cell wall peroxidase ...
Selection on uniformity and yield stability in maize / Selekcija na uniformnost i stabilnost prinosa kukuruza
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2004)
Historically speaking, both the introduction of double-cross hybrids and use of single crosses have caused the increase in grain yield and significantly improved agricultural practice. Nowadays, the uniformity of crops is ...
Analysis of optimum energy potential use of a tractor in land tillage / Analiza optimalnog korišćenja energetskog potencijala traktora u obradi zemljišta
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2004)
The paper discusses the possibilities for optimum use of energy potential of a tractor under exploitation. The results reveal that energy consumption equals the tracking power of the tractor The optimum use of energy ...
Proizvodnja sireva sa probiotskim bakterijama
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd i Poslovno udruženje za stočarstvo - grupacija za mlekarstvo, Beograd, 2004)
Veliki broj različitih vrsta sireva predstavlja podesan sistem prenosa probiotskih sojeva bakterija mlečne kiseline do intestinalnog trakta ljudi. Relativno visok pH, čvrsta konzistencija, viši sadržaj masti i veći puferski ...
The synthesis and preliminary pharmacological evaluation of racemic cis and trans 3-alkylfentanyl analogues / Sinteza i preliminarni farmakološki testovi recemskih cis i trans 3-alkilanaloga fentanila
(Srpsko hemijsko društvo, Beograd, 2004)
A general, five step method for the synthesis of 3-alkylfentanyl analogues (i.e., cis and trans 3-alkyl-4-anilidopiperidines 6.1–6.6) has been developed. The starting N-phenethyl- 4-piperidone 1 was first converted into ...
Alterations in liver and kidneys of chickens fed with high levels of sodium selenite or selenized yeast / Promene na jetri i bubrezima pilića hranjenih visokim nivoima natrijum selenita ili seleniziranog kvasca
(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2004)
The experiment was carried out with 260 chickens divided into 13 groups, for 6 weeks. All chicken groups were fed with commercial mixtures, and selenium was added in their feed in the form of sodium selenite or selenized ...
The concept of 'safe cigarette' / Koncepcija 'sigurne' cigarete
(Naučni institut za ratarstvo i povrtarstvo, Novi Sad, 2004)
In the production of the so−called "safe cigarette", attention has been focused so far on the particle phase of tobacco smoke and possibilities of reducing its harmful components (tar, nicotine and PAHs). CO, an element ...
Efficacy of new fungicide mixture in control of Phytophthora infestans (Mont) de Bary and Alternaria solani Sorauer in potato and tomato crops / Efikasnost nove kombinacije fungicida u suzbijanju Phytophthora infestans (Mont) de Bary i Alternaria solani Sorauer u usevu krompira i paradajza
(Institut za pesticide i zaštitu životne sredine, Beograd i Društvo za zaštitu bilja Srbije, Beograd, 2004)
Field trials were carried out to evaluate the efficacy of a new fungicide mixture fenamidone + propamocarb-hydrochioride in the control of potato late blight and tomato early blight. The experiments were contucted in three ...
Uloga seoskog stanovništva Srbije i Crne Gore u razvoju agrara
(Naučno društvo agrarnih ekonomista Balkana, Beograd, Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt, 2004)
Seosko stanovništvo Srbije i Crne Gore ima značajnu ulogu u razvoju agrara, ali i u strukturnim promenama poljoprivrede u procesu tranzicije.U selima živi 43,21% ukupnog stanovništva. Sociodemografska struktura stanovništva ...