Scientific Reports of the National University of Life and Environmental Sciences of Ukraine

The article presents the results of field studies with varieties of white one-year clover Pivdeny and Donetsk one-year for growing them in the conditions of the south of Ukraine. The aim of the research was to establish the characteristics of the formation of seed productivity of various varieties of culture by optimizing the width of the spacing and doses of nitrogen fertilizer. The experience was laid by the method of split plots by the method of randomization in quadruplicate, in accordance with the method of conducting field research by improving the elements of agrotechnical methods of growing crops. The following methods were used in the studies: general scientific (analysis, observation, comparison, measurement), special (field, laboratory), comparative analytical, regression, information-logical analysis and mathematical modeling. On average for 2016-2018 the maximum yield of the seeds of the white annual clover is 556 kg/ha, set in the Pivdeny variety with a row spacing of 45 cm and a dose of nitrogen fertilizer N₆₀

white annual annus, varieties, width of lines, nitrogen fertilizer, yield