Plant and Soil Science

In the Ukrainian economic conditions there is a competition between producers of the crops products and it caused their competitiveness in national and international markets. This causes increasing of the farm efficiency. One of the ways for increasing of the farm efficiency is minimization of the soil tillage and rational use of fertilizers. So, the rational fertilizers application for different soil tillage was researched. There were ploughing and mini-till and no-till and split formation. The effect of the ammonium nitrate application and UAN solution on background of the phosphatepotassium fertilizers were researched for these types of soil tillage. These factors were researched for next crops: corn, soybean and spring wheat. For corn the rate of mineral fertilizers was N140P100K100, for soybean it was N60P60K60, for spring wheat it was N100P80K80. Results indicate that the optimal soil tillage for all crops was split formation. And better nitrogen fertilizers were urea-ammonium nitrate solution for two crops (soybean, spring wheat) because in these variants was maximal profitability in these crop production system. It was 95.0 % for soybean and 58.1 % for spring wheat. For corn the best fertilizers were ammonium nitrate where was maximal profitability (54.7 %). 

ammonium nitrate (Nаа), urea-ammonium nitrate solution (UAN), soil tillage, agricultural crops.