The use of succinic acid plant growth regulator in rooting lignified cuttings of pear varieties and forms

Abstract

The quantity and quality of the obtained yields of spelt (Triticum dicoccum) largely depends on the conscious choice of the variety, the use of the necessary nutrients in optimal quantities at critical phases of plant development in specific soil and climatic conditions. The purpose of these studies is to assess the effect of foliar fertilization with nitrogen fertilizers on the yield of spelt varieties. Field experiments were conducted in 2021-2022 on gray forest soils of Agrobiotechnopark LLC at the Federal State Budgetary Educational Institution of Higher Education Kazan State Agrarian University. Agrochemical indicators of the site: the content of humus 3.6%, mobile phosphorus according to Kirsanov in the modification of Tsinao 262 mg / kg, exchangeable potassium 125-185 mg /kg, soil acidity – 6.2 pH. The doses of mineral fertilizers were determined by the calculation and balance method to obtain 3 tons/ha of grain, which amounted to N35P23K5. A single foliar top dressing was carried out