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The reaction of the early ripening potato of Vineta variety to different methods of using growth regulators against the calculated background of mineral nutrition on the gray forest-steppe soil of middle Volga was studied. The effectiveness of processing planting tubers and foliar treatment of plants during their vegetation has been established. The experiments were carried out on the control without the introduction of NPK and on a fertilized background, designed to obtain a tuber crop of 40 tons per hectare. The studies were conducted on gray forest medium loam granulometric composition soil of “Zemlyaki” farm in Nizhnekamsk district of the Republic of Tatarstan. Field experiments were carried out in 2019 by employees of Plant Growing and Horticulture Department of Kazan State Agrarian University. The humus content in the arable layer of soil according to Tyurin is 3.35%, pH is 5.7, easily hydrolyzable nitrogen is 112 mg/kg of soil, mobile phosphorus is 156 mg/kg, exchange potassium is 136 mg/kg of soil, molybdenum is 0.07, copper is 0.52, boron - 0.7, zinc - 4.82 mg/kg. The effectiveness of the integrated use of growth regulators (treatment of planting tubers and foliar application of the drug during the growing season) has been established. The yield increase to control against the background without applying basic fertilizers amounted to 4.82 tons per hectare, and against the background of their application - 4.80 tons per hectare. |
