The norms of sowing barley on drained land

The article presents the results of studies on the rates of barley sowing on drained soils. The investigations were carried out in the experimental fields of the All-Russian Research Institute of Reclaimed Lands. It has been established that when barley is placed in a crop rotation after good predecessors and grown with the use of the basic elements of intensive technologies, the reduction of the barley sowing rates from 6.0 million/ ha of fresh grains to 4.0 6.0 million/ha does not lead to a decrease in yield. Analysis of the structure of the crop showed that a decrease in the barley seeding rate from 6.0 to 4.0 million ha of virgin grains leads to a 33.8% decrease in plant standstill (from 307 to 244 pieces per m2) and the number of stems with a spike of 13,8%. At the same time, due to the reduction in the number of plants and productive plants, with a decrease in the rate of sowing, crop losses were compensated for by more intensive plant growth and an increase in the mass of grain in the ear...