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Приказ резултата 31-40 од 151
Growing winter wheat in continuous cropping and two-crop rotation / Gajenje ozime pšenice u monokulturi i dvopoljnom plodoredu
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2009)
According to past investigations into the influence of crop rotation on yield of winter wheat seed, it was found that yields varied most depending on the influence of meteorological conditions. Therefore the influence of ...
Energy aspects of sprincler irrigation / Energetski aspekti navodnjavanja kišenjem
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2008)
This research has included two different raining irrigation systems, both rain gun and mobile linear system. According to the calculations, can be concluded that those two systems work with different pressures, which causes ...
Potentials of hilly-mountainous region of Serbia for organic agricultural production / Potencijali brdsko-planinskog regiona Srbije za organsku poljoprivrednu proizvodnju
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2008)
Serbia as a country has variety of geographic, climate, natural and cultural heritage. According to IUCN, mountains of Serbia are part of one of 6 biodiversity centers of temperate climate. Extremely in danger, these ...
The effect of current tillage systems on grain yield of main field crops / Uticaj savremenih sistema obrade zemljišta na prinos važnijih ratarskih useva
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2008)
On the basis of many investigations, it has been concluded that the future of agriculture development in the XXI century will imply sustainable agriculture as the alternative to the conventional agriculture. It is considered ...
Achieved volume of use agricultural mechanization as an element of decision-making in organizing mechanized process on agricultural farms / Ostvareni obim korišćenja sredstava poljoprivredne tehnike kao element za donošenje odluke pri organizovanju mehanizovanih procesa na poljoprivrednim gazdinstvima
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2009)
The paper presents a method to be based on known economic laws made the decision making that provides increased levels of economic efficiency of use of agricultural mechanization. It is one of the basic tasks necessary ...
Direct energy input structure in mercantile corn production / Struktura direktnih energetskih inputa u proizvodnji merkantilnog kukuruza
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2008)
In this paper structure direct energy input in mercantile corn production is presented with special review on: energy consumption for tillage and seeding in different tillage technology as well as energy consumption for ...
Alternative propulsion of off road vehicles / Alternativni pogon na vanputnim vozilima
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2008)
The appliance of alternative propulsions on off road vehicles presents a very popular topic nowadays. Global rise in the price of fossil fuel and the actual global economic crisis contribute even more to the importance of ...
Numerical simulation of greenhouses heat load / Numerička simulacija toplotnog opterećenja plastenika
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2009)
The paper described the process of solving partial differential equations of heat conduction in the walls of the building envelope by numerical discretization in order to determine the precise unsteady temperature fields ...
Influence of physical properties of fertilizer on spreaders working quality / Uticaj fizičkih osobina mineralnih đubriva na efikasnost aplikacije
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2009)
Proper choice and efficient utilization of various technological-technical application systems still has a significant importance concerning ecology, energy and economy in agriculture. Due to the predominant practice of ...
Air velocity fields distribution in tied cows building by different roof cooling fans working regimes / Raspored brzinskih polja vazduha u objektu za vezano držanje krava sa višerežimskim krovnim ventilatorima
(Univerzitet u Beogradu - Poljoprivredni fakultet - Institut za poljoprivrednu tehniku, Beograd, 2009)
Analysis of roof cooling fans function in several working regimes is presented. The main goal of the research was to define the influence of fan working regime on distribution of air velocity fields. During the different ...