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Information × Registration Number 0221U102700, 0119U003644 , R & D reports Title Management by maintenance of organic carbon in the irrigated soils of South of Ukraine in the conditions of regional climatic changes popup.stage_title Head Maliarchuk Anastasiia S, Registration Date 08-02-2021 Organization Institute of Irrigated Agriculture of the National Academy of Agrarian Sciences of Ukraine popup.description2 Research object: organic carbon cycle in ecosystems Subject of research: assimilation, mineralization and migration of carbon in the steppe ecosystems of southern Ukraine. Purpose of the work: to substantiate the direction of managing the content of organic carbon in irrigated soils, as a condition for maintaining soil fertility by preserving organic matter and the content of natural soil moisture during global climate changes. Determination of the content of active organic matter in the soil is a reliable way to assess the state of soil organic matter, it allows you to catch, explain and predict the tendency of changes in its quality depending on soil cultivation systems or crop fertilization systems. When characterizing the soil supply with gross and active organic matter, the seasonal factor of soil sampling does not play a fundamental role, and if necessary, in a detailed assessment of changes in the structure of organic matter, it is important to know at what time of the year the soil samples were taken. A high level of provision of dark chestnut soil with organic matter, obtained with a dump at different depths and differentiated -1 system of basic tillage (67.4 and 67.0 t/ha), and the lowest - with a dump-free shallow single-depth system - 64.6 t/ha The content of active organic matter is a relatively stable diagnostic indicator in the system of agrochemical assessment of soil quality without significant differences when determined in samples of spring or autumn sampling, while the structure depends on the sampling period during the growing season. The use of fertilizers is a prerequisite for optimizing the nutritional regime of dark chestnut soil. The organic system of fertilizers is more aimed at increasing the potential fertility of the soil, and the mineral system is at increasing its actual fertility, surpassing the organic system with an increase in the yield of agricultural crops. Product Description popup.authors Hranovska Liudmyla M Luzhanskiy Igor Yu Maliarchuk Mykola P Tomnitskiy Anatoliy V popup.nrat_date 2021-02-08 Close