METHOD FOR DETERMINING DOSES OF MINERAL FERTILISERS FOR PLANNED CROP CAPACITY OF AGRICULTURAL CROPS Russian patent published in 2018 - IPC A01C21/00 A01G7/00 

FIELD: agriculture.

SUBSTANCE: method for determining the doses of mineral fertilisers for the planned crop capacity of agricultural crops includes agro-chemical analysis, determining the correction factors and calculating the fertiliser doses, taking into account the value of the planned crop capacity, agrochemical soil indices, agronomic factors and biological features of agricultural crops, the calculation of fertiliser doses being carried out taking into account the additional influence of a predecessor in the crop rotation and the ratios of the removal of mineral nutrients depending on the crop capacity level, the rate of phosphate and potash fertiliser doses being calculated according to the formula: F_R= (R_f-R_f×Cn):C_UF×100, where F_R- the rate of P₂O₅, K₂O, kg/ha; R_f - the removal of P₂O₅, K₂O with the planned crop, kg/ha; Cn - the factor of using P₂O₅ and K₂O from the soil of removal with the crop; C_UF - the factor of fertiliser nutrients use, %; and the rate of nitrogen fertilisers is calculated using the transformed formula: F_R=(R_f-(R_f×Cn (of phosphorus)×)C):F_UF×100, where C is the removal of nitrogen with the planned crop, the removal of P₂O₅ with the planned crop.

EFFECT: invention makes it possible to reduce the consumption of mineral fertilisers while cultivating agricultural crops.

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