engleski

Non-conventional soil tillage systems in winter barley and soybean production

The paper presents results of the two-year experiment in winter barley (Hordeum vulgare L.) and soybean (Glycine max L.) production. Short-term study of non-conventional soil tillage systems was conducted at the experimental field near Staro Petrovo Selo (45° 10’ N, 17° 30’ E) on Hypogley-vertic type of soil and semi humid climate conditions. The tillage systems and implements used were: CT – mouldboard plough, disc harrow, seed-bed implement, drill, RT 1 - chisel plough, disc harrow, seed-bed implement, drill, RT 2 - chisel plough, rotary harrow integrated with seed drill, RT 3 - mouldboard plough, rotary harrow integrated with seed drill. The highest average yields were obtained by RT 3 in barley production (4.42 t ha-1 ) and RT 1 system in soybean (3.78 t ha-1 ) production. The greatest energy and labour savings in soil tillage, among the lowest total cost of production, were achieved by RT 2 system, but due to the significantly lower yields this system has not proved adequate for soybean production, while it could be recommend in barley production due to the highest productivity accompanied with high yields and economic efficiency. The highest economic efficiency of barley production has shown RT 3 system (coefficient of 1.75), while in soybean production the most profitable system was RT 1 (coefficient of 2.16). Regarding the choice of tillage systems, assuming uniform level of yields, the advantage should be given to systems with lower level of tillage intensity, not only to reduce costs but also because of the possibility of simpler production organization due to less machine and labour requirement.

soil tillage; energy consumption; production costs; economic efficiency

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