THE BASIC PRINCIPLES OF SOIL FERTILITY MANAGEMENT IN THE CULTIVATION OF GRAIN CROPS USING INTENSIVE TECHNOLOGIES IN SIBERIA

intensive technologies are oriented to obtaining maximum crop yields. In an optimal economic system in the agricultural sector, such yields should provide farms with maximum profit. Application of intensive technologies is rendered difficult by unpredictable weather conditions. To reduce the damage, we propose a balance method of determining fertilizer doses, based on the establishment of the minimum content of N, P and K forms available to plants in the soil, at which the application of fertilizers in the mode of compensation for the alienation of elements from the field will provide maximum crop yields in growing seasons with relatively favorable weather conditions.