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On dark gray forest and leached chernozem soils of the Tambov region, the effectiveness of using new granular organic fertilizer from poultry excreta was evaluated. After disinfection of the litter by deep drying, the total content of NPK in the fertilizer constitutes 11-12%, the content of trace elements is about 1g/kg. Field experiments conducted in 2019 showed that the yield increase from the introduction of the studied organic fertilizer at a dose of 4-8 t/ha on spring wheat was 25-30%, on spring barley - 20-23%, on sugar beets from the introduction of 8 t/ha - 10-12%, on potatoes - 40-50%, on tomatoes from 6 t/ha - 30-32% Profitability from the use of this fertilizer on cereals is 130-145%, on technical crops - 140-150%, on vegetables - 230-250%. Optimal fertilizer doses contribute to increasing protein in wheat grains by 1.5%, sugar content in sugar beets by 8-9%, starch content in potatoes by 3-4%, and sugar, dry substances and vitamin C content in tomatoes by 1-2%. The introduction of fertilizer in doses higher than optimal contributes to the increase of basic nutrients and micronutrients content in the soil.

Effect of granular fertilizer of disinfected chicken dung application on crop productivity and soil fertility