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Information × Registration Number 0224U000391, 0121U000049 , R & D reports Title Theoretical substantiation of expediency of introduction of system of tillage "no till" popup.stage_title Head Demydenko Oleksandr V., Доктор сільськогосподарських наук Registration Date 06-01-2024 Organization Cherkasy State The Agricultural Experimental Station of National Scientific Center "Institute of Agriculture of National Academy of Agrarian Sciences of Ukraine" popup.description2 When transitioning from systematic plowing and long-term surface cultivation in a 5-day grain rotation, the yield of by-products is sufficient for standard coverage of the field surface with a layer of plant mulch, which allows covering the field surface from 75% to 90%, depending on the crop in the crop rotation. The application of the No-till system in the first years provides in the spring a density level of the structure in the 0−30 cm layer of chernozem in the range of 1.23−1.24 g/cm3 (by plowing) and 1.24−1.26 g/cm3 (by surface processing); in the summer period, the density of the structure was within the range of 1.25−1.27 g/cm3, and in the autumn period, the density of the structure did not exceed the critical values ​​(1.30−1.32 g/cm3), while during plowing the density reaches values ​​>1.35 g/cm3. The loosening of black soil during the period autumn - winter - spring under No-till systems was: 0.07−0.08 g/cm3 and 0.05−0.11 g/cm3, respectively, No-till by plowing and surface treatment, while under plowing due to "physiization" loosening increases to 0.11-0.19 g/cm3. Under the No-till system, for 2-3 years of implementation, productive moisture accumulates in the meter layer of the soil by 8-12 mm more compared to plowing, and relative to the reserves of 2022, the moisture reserve in 2023 increased by +19.0 mm (after plowing) and by +14.0 mm (by surface cultivation), which is associated with the formation of a layer of mulch on the surface of the field and the creation of vertical courses of earthworms and vertical macro-scars from rotting roots, which are not destroyed by intensive cultivation. When switching to the No-till system in a 5-till grain rotation, leaving by-products to create a layer of mulch on the field surface in the amount of 5.40-5.65 t/ha, total above-ground mass - 6.42-7.22 t/ha and total secondary phytomass of 9.50−10.2 t/ha provides optimal values ​​of the structure density of the 0-30 cm layer of chernozem in seasonal and annual terms. Product Description popup.authors Muzychko Svitlana B. Rasevych Volodymyr V. Tetereshchenko Nataliya M. Shagurska Nataliya V. Shapran Valentyna S. popup.nrat_date 2024-01-06 Close