METHOD OF CULTIVATION OF FODDER CROPS AND CONTROLLED-RELEASE NITROGEN FERTILISER TO ITS IMPLEMENTATION Russian patent published in 2012 - IPC A01G1/00 A01B79/02 A23K1/00 C05C9/02 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. The method includes application of mineral fertilisers into the soil, drill sowing of the main spring nurse forage crop, followed by complementary seeding of intermediate forage crop, for example, spring rape, repeated mowing of herbage for animal feed. And after each mowing the stubble is combed and sprayed with insecticides. Sowing of the main spring nurse forage crop is carried out with seeds of sorghum crops, such as Sudan grass or forage millet with low seeding rate up to 50% and 75% respectively. Before sowing, as a mineral fertiliser, a controlled-release carbamide-formaldehyde fertiliser is applied in the soil containing 0.1-0.3 moles of formaldehyde per 1 mol of carbamide. The fertiliser is applied to the soil at the rate of 60-90 kg of active ingredient per 1 ha.

EFFECT: method enables to intensify the growth of plants due to preplant application of controlled-release carbamide-formaldehyde fertiliser and to increase the number of cuttings.

2 cl, 1 tbl