METHOD OF SINGLE-SPECIES GRAIN CROPS CULTIVATION Russian patent published in 2009 - IPC A01C7/00 

FIELD: agriculture.

SUBSTANCE: method of cultivation relates to agricultural production, in particular to technology of field crop cultivation. Method includes preparation of soil and sowing by drill method. Sowing is carried out with seeds of different precocity in varieties of one species. First seeds of late variety are sown in every second row. After shoots emergence and weeds destruction seeds of medium or early variety are sown into inter-row space, selection of varieties for sowing is determined by time period between shoots of late variety and next sowing. Amount of seeds of one variety must not exceed 75% of total standard quantity of seed per hectare, standard quantity of seed per hectare depending on soil moistening and is calculated by formula: for medium soil moistening Ntot=0.5Nl+0.5Nm, for high soil moistening for low soil moistening where: Ntot - total standard quantity of sowing by varieties, mln seeds/ha; Nl - standard quantity of late variety sowing, mln seeds/ha; Nm - standard quantity of medium variety sowing, mln seeds/ha; Mm - medium moistening, mm; Mh - high moistering, mm; Ml - low moistening, mm.

EFFECT: invention ensures increase of optimisation of technology of mixed single-variety grain crops cultivation, increase of cultivated plant productivity.