METHOD OF INCREASING YIELD OF NATURAL HAYFIELDS Russian patent published in 2016 - IPC A01C21/00 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular, to plant growing, and can be used for increasing yield of natural fodder lands. Method of increasing yield of natural hayfields involves adding mineral fertilizers and cultivation of perennial fodder grasses, represented by meadow natural grass cover of hayfields. Application of mineral fertilisers with active ingredient N₃₀P₄₅K₄₅ is carried out in period of active growth of herbs by foliage spraying with rate of consumption of 45 kg/ha. It is followed by treatment of vegetative plants with bio-preparation “Verva”, extracted from fir wood green by emulsion extraction, by way of spraying in period of earing of cereals and leguminous budding in dose 200 ml of bio-preparation per 1 ha in concentration of 10 g/l at rate of working fluid flow of 300 l/ha.

EFFECT: achieved technical result consists in improvement of productivity and quality of grasses natural hayfields.

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