EFFECTS OF PHOSPHOR STORAGE FERTILIZERS ON PHOSPHATE REGIME AND CABBAGE YIELD OF TYPICAL GRAY SOILS

The article describes the types and rates of phosphorus-containing fertilizers under the soil phosphate regime and high yields of white cabbage in the conditions of typical gray-earth carbonate soils of the Zarafshan valley. While the application of phosphorus-containing fertilizers creates a favorable phosphate regime in the soil, with the application of fertilizers of 140 and more per hectare, an increase in the natural level of phosphates from the initial amount to 1 mg/kg was observed. The highest reliable yield was obtained when applying 100 kg/ha against the background of N200K90. The highest degree of use of phosphorus-containing fertilizers was observed in the option of applying NCPhF 60 kg/ha and amounted to 19.4%.

In improving the phosphate regime of this soil and cultivating high and quality crops from white cabbage, fertilizers are recommended to apply fertilizers in the amount of N200P100K90, ammophos, NCPhF, and Ps-agro fertilizers as phosphorus fertilizers.