Optimization of basic tillage techniques on the slope landscapes in the Chechen Republic

Studies on the optimization of basic tillage techniques were carried out in the foothill part of the Chechen Republic. The purpose of the research was to determine the optimal reception of basic tillage on the slope landscapes of the Chechen Republic in the cultivation of grain and leguminous crops. The results of the optimization of basic tillage techniques on the sloping landscape of the Chechen Republic have shown that the smallest number of weeds on average in 2017-2021 was recorded on winter wheat crops after moldboard tillage (12.3 plants/m²), the largest number of weeds was registered on spring barley crops after minimum disc tillage (36.1 plants/m2). The smallest dry biomass (2.79 t/ha) was found in peas in the variant with minimum disc tillage. The maximum dry biomass (5.15 t/ha) was recorded for winter wheat in the variant with deep moldboard tillage. The lowest net photosynthetic productivity (1.82 g/m² per day) was found in peas in the variant with minimum tillage. The highest net photosynthetic productivity (3.39 g/m² per day) was noted for winter wheat in the variant with minimum disk tillage. On average for 2017-2021, the maximum economic yield of grain on the sloping landscape was formed in winter wheat after deep tillage and amounted to 4.25 t/ha. The minimum economic yield of grain was formed in peas after deep tillage and was 2.14 t/ha. Thus, optimal conditions for growth and development of grain and leguminous crops on the sloping landscapes of the Chechen Republic are formed after moldboard tillage to a depth of 0.20…0.22 m with a nonmoldboard deepening to 0.35…0.37 m.