Open AccessThe Content of Nutritional Elements in Gray Forest Soil and Spring Wheat Yield in Relation to the Aftereffect of Lime and Mineral Fertilizers in an Alternating Crop Rotation
Author(s) -
E N Dijachenko,
А. Т. Шевелев
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/666/2/022096
Subject(s) - lime , agronomy , loam , fertilizer , potassium , phosphorus , crop rotation , potash , manure , environmental science , crop , chemistry , soil water , biology , soil science , paleontology , organic chemistry
We present the results of studies of the content of nutrients in gray forest soil and spring wheat grain yields for three years of the fifth rotation (2017–2019) in the alternating crop rotation: corn, barley and clover, clover, wheat, in the conditions of Baikal region. The soil of the experimental site is gray forest heavy loamy. The predecessor was clover green manure, and we did not use any mineral fertilizers. The results of the experiment demonstrated that aftereffects of nitrogen-potassium and complete fertilizer of the 2 nd year contributed to an increase in nitrate nitrogen content on the non-limed background by 8–12% and on the background with liming aftereffect – by 13–19%; aftereffect of phosphate fertilizer in double and triple combination on two backgrounds increased the amount of mobile phosphorus by 8–15 and 7–10% respectively. As a result of liming aftereffects, the amount of N-NO 3 and P 2 O 5 increased by 18 and 2% on average. The content of mobile potassium in the soil did not depend on aftereffects of mineral fertilizers and liming. On average, during the years of research, aftereffects of mineral fertilizers increased the yield of wheat grain by 0.18-0.35 t/ha (7-13%), aftereffects of liming – by 0.17–0.27 t/ha, and joint use of fertilizers and lime – by 0.20–0.45 t/ha (7–16%). Maximum harvest yield of wheat, 3.34 t/ha, was achieved in the variant with aftereffects of N 30 P 30 K 30 on the limed background.