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Chemical Journal of Kazakhstan
ISSN
1813-1107
2710-1185
2 результаты
Показано: 1 - 2 из 2
- Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, RESEARCH OF PRODUCTION TECHNOLOGIES, MICROBIOLOGICAL AND AGROCHEMICAL CHARACTERISTICS OF FERTILIZERS BASED ON MONO-, DYCALCIUM PHOSPHATE WITH ZINC PHYTO-COMPOUND: Communication 2. Study of microbiological and agrochemical characteristics of a composition based on mono-, dicalcium phosphate with a phytocompound of zinc(2021-03-14); ; R. U. MakhmudovOn model soil samples, the positive effect of the composition based on mono-, dicalcium phosphates with a phytocompound of zinc on the number of soil microorganisms affecting the nitrogen and phosphorus nutrition of plants and the accumulation of easily hydrolyzable nitrogen and mobile forms of phosphorus pentoxide in the soil was established. Achieved: an increase in the number of nitrogen-fixing microorganisms in comparison with the standards in 3.14-3.2 times and phosphate-mobilizing 3.4-3.42 times; accumulation of soil 11.5-12.7% of easily hydrolyzable nitrogen and 6.9-8.1% of mobile forms of phosphorus pentoxide. In the reference variants, there is a decrease in the content of phosphorus pentoxide mobile forms by 6.9-8.3%, which is associated with the retrogradation of phosphorus pentoxide. A decrease in the number of oligotrophs and denitrifiers, decomposing humus, and nitrate nitrogen of the soil by 2.18-2.15 times and 2.5- 2.56 times is the basis for the preservation of soil fertility. Under the conditions of a microplot experiment, it was determined that the compositions containing a Phyto compound of zinc provide an increase in the yield of raw cotton in comparison with the standards – mono-, dicalcium phosphates 3.9 and 4.3 c/ha. The data obtained are in good agreement with phenological observations, the content of nutrients in the middle of the growing season, and the results of microbiological studies. - Некоторые метрики заблокированы вашиминастройками согласия
Тип записи:Публикация, PREPARATION OF PHOSPHORIC FERTILIZER BASED ON PHYTOCOMPOSITION OF ZINC AND MONOCALCIUM PHOSPHATE(2021-03-14); ; Sh. BaybashchaevaIn this article the results of synthesis of monocalcium phosphate with a zinc phytocompound are considered. By studying the chemical interaction of monocalcium phosphate with a zinc phytocompound, studying their physicochemical and commercial properties, the optimal compositions of phosphorus fertilizers based on monocalcium phosphate with a zinc phytocompound have been determined. Considering the importance of phosphorus for the formation of plant tissue in increasing the productivity of agricultural crops, the main attention is paid to the assi-milation of phosphorus compounds by plants, which is of paramount importance. It is well known, that one of the main disadvantages of phosphorus fertilizers used in crop production is the low utilization rate of nutritive phosphorus pentoxide, which does not exceed 20-22%. The fact of the low utilization rate of nutritious phosphorus pentoxide in fertilizers is associated with its retrogradation in the soil with the formation of compounds not assimilated by plants. Agrochemical studies have established that phytocompounds increase the utilization rate of phosphorus-containing fertilizers.