DYNAMICS OF FERTILITY INDICATORS OF LIGHT-CHESTNUT SOIL AND OIL FLAX PRODUCTIVITY UNDER BOGARIAN CONDITIONS OF SOUTHEAST KAZAKHSTAN
Amangaliev B.M. Zhusupbekov E.K. Malimbaeva A.Z. Batyrbek M. Rustemova K.U. Tabynbayeva L.K.
December 2023Society for the Advancement of Breeding Researches in Asia and Oceania
Sabrao Journal of Breeding and Genetics
2023#55Issue 62195 - 2206 pp.
The suitable research aims to ascertain the optimum dose of mineral fertilizers and methods of soil processing and preparation for successful flax (Linum usitatissimum L.) cultivation in the semi-arid conditions of the Almaty Region, Kazakhstan, focusing on achieving high crop productivity with good seed quality. Agrochemical investigations also employed modern devices and widely accepted methods. Studying parameters, such as total humus, labile humus, nitrate nitrogen, mobile phosphorus, exchangeable potassium, soil composition density, structural-aggregate composition, and moisture supply, ensued using specific techniques. The study observed an enhancement in nitrate nitrogen content in the soil, from an initial level of 11–19 mg/kg to 36–91 mg/kg during flax harvest in all experimental variants. On the contrary, the mobile phosphorus exhibited a decline in the soil from the beginning of crop vegetation until harvest; however, determining the available phosphorus in different practices showed medium, high, higher, and very high. Moreover, a decline in exchangeable potassium content (from 344–446 mg/kg to 175–215 mg/kg) emerged during the flax crop across all the experimental variants. The application of mineral fertilizers NPK at the rate of 60:60:30, with the application of a growth regulator Ecorost at the rate of 2 liters per ton of seeds, and employing a flat-cut treatment (10–12 cm) on light chestnut soil in the semi-arid zone with super dry season of Almaty Region, resulted in the highest flax yield in cv. Karabalykskaya (410 kg/ha).
exchangeable potassium , flat-cut tillage , Flax (Linum usitatissimum L.) , mineral fertilizers , mobile phosphorus , nitrate nitrogen , plowing , productive moisture , productivity , zero tillage
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Kazakh Research Institute of Agriculture and Plant Growing, Almaty Region, Kazakhstan
Kazakh Research Institute of Agriculture and Plant Growing
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