Opłacalność chemicznej ochrony oraz koszty produkcji w wybranych systemach uprawy buraka cukrowego

Abstract

Summary The research objective was to determine the costs of chemical plant protection, production and profitability of sugar beet production in five systems of conservation tillage. The study was conducted at the Experimental Station of University of Environmental and Life Sciences in Wroclaw, in the years 2008–2010. Two factor experiment was established according to a split-plot method, in three replications. The investigation involved the costs of mulch coming from different crops, the costs of sugar beet cultivation for two levels of N fertilization: 80 and 120 kg/ha as well as the costs of chemical plant protection. The highest economic efficiency of sugar beet production, in the form of the profit obtained (the highest bank deposit) was achieved from the system with pre-harvest straw, mixed by a cultivator and reduced nitrogen dose, as well as conservation tillage system with winter vetch. The expenses invested in the chemical plant protection ranged from 87.4 to 112.9 dt, which constituted 11.6 to 27.9% yield size. The system with white mustard provided the highest efficiency of protection treatments.