Mico Oljaca

Ekonomsko-tehnološki parametri optimalnog korišćenja traktora

Primena savremenih poljoprivrednih masina i oruđa u biljnoj proizvodnji, podrazumeva koriscenje svih parametara koji su neophodni za optimalnu eksploataciju traktora kao i ekonomskih naucnih istraživanja koja su usmerena primeni naucnih saznanja u praksi.U radu je prikazana analiza optimalnih radnih parametara traktora u cilju ostvarivanja maksimalnog ucinka koji ce za posledicu imati ekonomsku opravdanost. Utvrđeno je da se maksimalni ucinak podudara sa maksimalnim koeficijentom korisnog dejstva traktora; da se sa povecanjem snage motora proporcionalno povecava ucinak; da je tehnoloski utrosak energije u funkciji dubine oranja i specificnog otpora zemljista, a da utrosak potencijalne energije traktora po hektaru zavisi od strukture energetskog bilansa pri radu traktora u eksploataciji.

Research results of long-term use of new line of machines and tools for land surface and depth arrangement

This paper presents the results of the application of the machines and tools for new technologies in plant production for two years of research. The comparative analysis of the influence of new technologies and new types of machines was done, and also the effect of conventional tillage systems on several agricultural crops (sunflower, commercial maize and wheat). During the experiment, we analyzed the effects of application of new line of machines to: physical properties of soil, morphological features of crops, use of energy and yield, and we also analyzed the economic aspects of the application. On the control plots, a conventional tillage system was simultaneously applied for comparative analysis of the previously mentioned factors. Trials were conducted on production plots of Maize Research Institute “Zemun Polje” in Krnjesevci from October 2008 until July 2010.