AGROCHEMICAL EVALUATION OF THE APPLICATION OF MICRO- AND MACRONUTRIENT FERTILIZERS IN CULTIVATION OF SUGAR BEET ON LEACHED CHERNOZEM SOIL OF WESTERN CISCAUCASIA
Here are shown the results of three year long research on leached chernozem of the Western Ciscaucasia of effect of macro- and micronutrient fertilizers on yield and quality of sugar beet root crops hybrid Nero in the 11-field grain-grass-tilled crop rotation. As the result of research, we have detected the positive influence on content of nitrogen, phosphorous and potassium in plants of sugar beet, yield and sugar level of root crop. The greatest agrochemical effect has been obtained with application of N80P80K80 norms. The yield of beet root crops and amounts of sugar exceeded control by 171.4 and 53.2 c/ha. Microelements, which were included in the fertilizing system of sugar beet, have increased the productivity by 5.4-28.6 c/ha or by 0.9-4.6% compared to background variant N80P80K80. Out of all researched microelements, the most significant effect has shown the variant with foliar fertilizing of plants with boron. Productivity in the variant has been increased by 28.6 c/ha compared to background variant. Foliar fertilizing with molybdenum, copper, manganese and microfertilizers has increased sugar content in roots by 0.1-0.2%, and with boron - by 0.4% and was the maximum.