Keywords: slopping lands, tillering of grain, mineral fertilizers, Poozerie, hydrothermal coefficient

// Мелиорация. – 2016. – №2(76).– С. 62—79

The cultivation of grain-grass crop rotation on drained mineral soils in Poozerie region is effective. The article describes how weather conditions affects yield productivity of various grain spaces. The decrease of its tillering is demonstrated at the deficit of precipitation. The more resistant is spring wheat compared to barley and oat, among perennial gasses alfalfa has better result than clover. It is noted that spring wheat productivity of 40 and 51 c/ha provide profitability of grain production of 12 and 23 % respectively. It cost includes mineral fertilizer and plant protection products expenses of 34 %.