The cereal crops biomass productivity in the case of introducing complex fertilizers into dark gray soils

Rather high efficiency of complex fertilizer nitro-ammophos combined with potassium sulphate in the series of vegetation experiments with spring wheat «Tulunskaya 12», «Novosibirskaya 15», oats «Orel» on the Krasnoyarsk forest-steppe dark gray soils is revealed. The crop biomass productivity statistically reliably increased in comparison with unfertilized variants in the year of introduction. In the aftereffect biomass crops increase significantly declined.