Abstract

Today, with the use of organic and mineral fertilizers in irrigated soils, increasing the yield of grain crops, improving the efficiency of the green mass, and maintaining the fertility of the soil, the norm is N-90, P-65, K-45 kg/ha with the increase  the total amount of humus is 0.002-0.001% from the initial state, the norms of mineral fertilizers are N- 60, + 20 tons of manure P2O5-45, + 20 tons of manure K2O-30 + 20 tons of manure with the increase in kg/ha, it was found that the total amount of humus and fertilizers N-60, P2O5-45, K2O-30 kg/ha decreased by 0.002-0.002% of the control of the options used in the norms. This situation indicates that with an increase in the rate of mineral fertilizers, especially nitrogen, the level of decomposition of biological nitrogen, which is part of humus, increases. In addition, similar patterns were observed in the changes in the amount of total nitrogen, phosphorus, and potassium, as it was proven that total nitrogen enters the composition of humus and makes up 0.1% of it.

Keywords

• Effect of organic mineral fertilizer feeding on plant development phases on NPK content change.

References

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