Pretraživanje
Prikaz rezultata 31-40 od 191
A survey of aphid parasitoids (Hymenoptera : Braconidae : Aphidiinae) of Southeastern Europe and their aphid-plant associations
(Springer Japan Kk, Tokyo, 2004)
The present work covers original information on the aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) of Southeastern Europe. The individual parasitoid species were reared from identified host aphid and plant ...
Effect of surfactant application on the efficacy of tribenuron-methyl for weed control in wheat / Uticaj primene okvašivača na efikasnost tribenuron-metila u suzbijanju korova u pšenici
(Institut za pesticide i zaštitu životne sredine, Beograd i Društvo za zaštitu bilja Srbije, Beograd, 2004)
During 2002 the efficacy of tribenuron-methyl for weed control in wheat was tested, and the results are shown below. The application of 7.5 g a.i/ha was shown to be efficient in controling Bilderdykia convolvulus, Stellaria ...
Microbiological activity in pasture soil / Mikrobiološka aktivnost u zemljištu pod pašnjakom
(Unija bioloških naučnih društava Jugoslavije, Beograd, 2004)
This paper deals with microbiological activity in natural pasture with ranker soil used in long-term experiment with no crop rotation. The purpose of this research was to observe the results of increased introduction of ...
Effect of NP and seed inoculation on soybean yield and protein content in the grain / Uticaj NP hraniva i inokulacije semena na prinos i sadržaj proteina u zrnu soje
(Univerzitet u Kragujevcu - Agronomski fakultet, Čačak, 2004)
The aim of the study was to analyze the effect of different amounts and proportion of nitrogen and phosphorus but also of seed inoculation on soybean yield and total protein content in the grain. Trials were conducted on ...
Integrated weed management system in maize weed control / Integralni sistem mera u kontroli zakorovljenosti kukuruza
(Herbološko društvo Srbije, 2004)
A joint effect of four cropping practices (irrigation, crop density, hybrid and herbicide application) on maize weed infestation, expressed by fresh mass of weeds (g m-2), was monitored in a four year period (1996-1999). ...
Components of genetic variability and heritability of grain yield of silage maize / Komponente genetičke varijabilnosti i heritabilnost prinosa zrna silažnog kukuruza
(Društvo genetičara Srbije, Beograd, 2004)
The aim of the present study was to evaluate the following parameters for the grain yield of silage maize: variability of inbred lines and their diallel hybrids, superior-parent heterosis and components of genetic variability ...
Uticaj uslova gajenja na degustaciona svojstva duvana tipa virdžinija
(Univerzitet u Nišu - Tehnološki fakultet, Leskovac, 2004)
Na osnovu rezultata dobijenih našim istraživanjima, mogu se izvesti sledeći zaključci: 1. Temperaturni uslovi za razvoj i sazrevanje duvana u područjima u kojima su postavljeni ogledi, bili su u optimalnim granicama. Na ...
The improvements of characteristics of running systems of agriculture machines / Usavršavanje karakteristika hodnih sistema poljoprivredne mehanizacije
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2004)
The improvement of characteristics of running systems of agricultural machines is necessary because of increasing demand for exploatation. This machines has different requirements with contact to the ground (soils or soils ...
Electrical properties of screen printed BaTiO3 thick films
(Elsevier Sci Ltd, Oxford, 2004)
The deposition of thick film pastes by screen-printing is a relatively simple and convenient method to produce thicker layers with thickness up to 100 mum. In the present work, the barium titanate thick films were prepared ...
Qualitative properties of Serbian population diet / Kvalitativne karakteristike ishrane stanovništva Srbije
(Naučno društvo agrarnih ekonomista Balkana, Beograd, Institut za ekonomiku poljoprivrede, Beograd i Akademija ekonomskih nauka, Bukurešt, 2004)
The diet represents an important part of the living standard of the population of any country. At the present level of both social and economic development in Serbia there are three socio-economic household categories: ...