The effect ofslotting between rowson hop yield and on thegeneral physical characteristics of the soil

Abstract

In the conditions of the Chuvash Republic, the effect of slottingbetween rowson hop yield and on the water-physical properties of gray forest soil was studied. Soil slotting was used during 2017-2019 in autumn after the completion of harvesting operations (late September-early October) on hop plantations of the Podvyazny variety. Tillage with a SCHX-1.6slotting device (Czech Republic) was carried out to the depth of 50 and 65 cm at different time intervals (annually and three years later). As the control, there was taken the conventional tillage without the use of aparaplow combined with autumn tillage of row spacing to a depth of 20 cm. Studies have shown that the use of aparaplow to a depth of 50 and 65 cm improved the aeration and water permeability of the soil (the specific weight of the 20-25 cm soil layer decreased by 0.1-0.2 g/cm3, the volume weight of the same layer-by 0.1-0.3 g/cm3) and contributed to an increase in hop yield by 1.4-3.1centners per hectare (LSD05 =1.3 centners/ha) compared to the conventional tillage of row spacing (20.9 centners/ha). The content of alpha-acids in hop cones was not affected by slotting between the rows of hops. The specific weight of the 50-55 cm soil layer significantly decreased in all variants in comparison with the control. The highest moisture content of the deep layers of the soil (30-55 cm) was achieved with conventional tillage combined with annual autumn slotting to 50 cm depth. All the studied variants in comparison with the control give a significant increase in the yield of hop cones. For the production, the variant with the lowest costs for deep tillage should be recommended. It is the annual processing of the top soil layer combined with the autumn slotting every 3 years to 50 cm depth.