PRODUCTIVITY OF SPRING EAR CROPS AT APPLICATION OF BACILLUS SUBTILIS-BASED BIOPRODUCTS IN THE CONDITIONS OF THE REPUBLIC OF TATARSTAN
In 2018-2019, the effect of various biological preparations based on Bacillus subtilis against diseases of the main grain crops of barley and spring wheat in the conditions of the Republic of Tatarstan was studied. The aim of the study is to determine the effect of various biological products on pathogenic microorganisms during the growing season of barley and spring wheat and the formation of the yield of the tested crops. The soil is gray forest, medium loamy. The humus content is 4.1% (according to Tyurin), easily hydrolyzable nitrogen is 98-112 mg / 1000 g, mobile phosphorus is 206-232, exchangeable potassium is 89-93 mg/ 1000 g of soil (according to Kirsanov), the pH of the salt extract is 5.5-5.8. The scheme of a one-factor field experiment included the study of the following options: seed treatment before sowing and without treatment - control, chemical fungicide Armor (standard CS 1.5 l/t); Pseudomonas fluorescens (seed treatment with Rhizoplan 1 l/t + Rhizoalphn 1 l/ha (spraying plants); In 2018-2019, the effect of various biological preparations based on Bacillus subtilis