Abstract
The study was conducted in the experiments with long-term fertilizers in non-irrigation conditions in 2016 and 2021. The experiments were based on the two-factor subdivision method. Factor A doses of Nitrogen and Phosphorus N0P0, N60P40, N60P80 and N120P80 respectively factor B Potassium doses K0, K40, K80 and K120. Fertilizers were applied in the fall under the plow and in the spring. The average monthly temperature was higher in April, June and July for 2016 and June and July in 2021, compared to the 65-year average. The average values of monthly precipitation were higher in 2016 during the vegetation period, and in 2021 they were higher in May and July, reduced in April and June compared to the average for 65 years. Following the obtained results, the production indicators were analyzed under the action of applying nitrogen, phosphorus and potassium fertilizers, respectively the obtained crop increase.
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