REACTION OF DOMESTIC AND FOREIGN POTATO VARIETIES TO THE USE OF GREEN MANURE

Abstract

The article presents the productivity and quality of domestic and foreign potato varieties when grown in crop rotations with shortened rotation. As a green manure crop on control (permanent landing) we used mustard white after harvesting potatoes, in a two-field crop rotation-vicooat mixture, and in a three-field-rotationannual clover. The yield of potatoes of different varieties in crop rotations was significantly higher than in the control rotation. The prevalence of diseases in plantings and tubers on the background of 100% saturation was 1.5-2 times higher than in crop rotation. Plowing of green manure mass into the soil contributed to the containment of potato diseases. The most economically profitable are cultivation of a domestic variety Kolobok in crop rotations. Economic efficiency of growing potatoes in crop rotations with different degrees of saturation shows us that, on average, for 3 years, the most economically profitable cultivation of domestic variety Kolobok in the variants of 2 and 3 - full crop rotations, permanent culture are less effective. For example, the profit in the 2-pole crop rotation for the variety Kolobok amounted to 143 thousand rubles/ha, and in the 3-pole 193 thousand. rubles / ha, permanent culture-74 thousand rubles / ha (2-2. 5 times less). According to the variety Breeze, these indicators amounted to 133, 183 and 70 thousand rubles/ha, respectively.Cultivation of the Saturn variety was even less profitable, namely-112, 163 and 37 thousand rubles / ha, respectively.