METHOD FOR FOLIAR FEEDING OF RICE PLANTS WITH COBALT IN THE CONDITIONS OF KUBAN Russian patent published in 2022 - IPC A01G22/22 A01C21/00 C05D9/02 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, in particular to methods for growing rice. The method includes a preliminary study of rice for cobalt content, ranking it into three groups with different cobalt content and determining the need for rice treatment with 1.0% aqueous cobalt solution depending on the cobalt content in it. Vegetating rice plants in the tillering phase are analyzed for their cobalt content after dry ashing at 525±25°C by the atomic absorption method and ranked into three groups: the first group includes plants containing less than 1.15 mg/kg of above-ground dry mass, the second - 1.15-1.40 mg/kg, the third group includes plants containing more than 1.40 mg/kg of above-ground dry mass. If rice plants contain cobalt less than 1.40 mg/kg, then foliar top dressing is carried out with a 0.1% aqueous solution of cobalt with a working solution flow rate of 300 l/ha.

EFFECT: method provides an increase in the yield of rice and a reduction in the consumption of cobalt-containing fertilizers.

1 cl, 3 tbl, 1 ex