Abstract
The article presents field studies on the selection of the most suitable crops for basic and crop cultivation under irrigation conditions in the south-east of Kazakhstan. As a result of the study, the most suitable crops for sowing the main and intermediate crops were determined, the optimal timing and methods of sowing intermediate crop crops were determined. The levels of greenhouse gas emissions into the atmosphere on cover crops have been determined. In the conditions of light chestnut soils in the south-east of Kazakhstan, the formation of a crop of cover crops largely depends on both the applied agricultural technology and the conditions of the year of cultivation. Oilseed flax and buckwheat provided a guaranteed harvest of marketable products when sown after winter wheat. The yield of winter wheat was 70-80 kg/ha.
Over the years of research, crop cultivation of oilseed flax has provided guaranteed yields in the range of 8.1-14.6 c/ha in 2021 and 7.4-10.2 c/ha in 2022, depending on the studied experience options. The cultivation of buckwheat in crop sowing after winter wheat provides a fairly good seed harvest. The yield of crop buckwheat, depending on the methods of sowing and cultivation technologies, varied in 2021 5.2-12.3 and in 2022 9.4-15.3 c/ha. Higher yields of buckwheat seeds are provided with ordinary sowing using traditional technology with dump plowing after winter wheat.
According to the formation of green mass, sorghum crop crops are distinguished, where the yield on variants with zero cultivation technology reached 640.8 c/ha for ordinary sowing and 354.2 c/ha for wide-row sowing, corn yield for silage 350-400 c/ha, reduction of irrigation water consumption by 30-40%, reduction of greenhouse gas emissions (CO2 and N2O) into the atmosphere 2.5-3 times, the profitability of production is 240-250%.
01 Introduction
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02 References
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