Abstract

The purpose of this research was to study the effect of forest stripes and predecessor crops on the yield of the spring barley. The research was carried out on the experimental field of the Lower Volga Research Institute, a branch of the Federal Research Center of Agroecology of the Russian Academy of Sciences during 2016 to 2020. Moisture reserves under the protection of the forest belt for the predecessors of peas and spring wheat were greater than in the open area and amounted for the predecessor of peas from 38.04 to 27.94 mm. By harvesting, the reserves of productive moisture were reduced to minimum values. On an average, over five years, the yield of spring barley varied depending on the predecessor crops and the distance of the forest belt. In wet years the yield varies from 0.9 to 2.61 t/ha and in dry years from 0.9 to 2.85 t/ha. The largest intake of nutrients in the form of straw, crop and root residues for N - according to the predecessor of perennial grasses at a distance of 15H was 32.7 kg/ha, P2O5 - according to the predecessor of spring wheat at a distance of 15H was 14.8 kg/ha and K2O according to the predecessor of perennial grasses at a distance of 5H was 53.2 kg/ha.