The fodder crop rotation soil contains about 737 - 869 kg C/ha, 206 - 243 k N/ha, 44 - 51 kg P/ha, 15 - 17 kg K/ha, and in the land the quantity of the biogenic elements represents about 2127 kg/ha, 596, 128 and 43 kg/ha, ...

Short rotation and monoculture diminish biological diversity of agroecosystems and decrease their productivity and stability. There are three groups of harmful objects (pests, pathogens and weeds) and the most powerful one ...

The present paper analyses the methods of the crop yields estimation, which depend on the agrometeorological conditions and on the soilfertilitymark in a multi-annual cycle. Crops productivitywas estimated for the agro – ...