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THE EFFECT OF DIFFERENT PHOSPHORUS DOSES ON THE STORAGE AND YIELD OF LATE-RIPENING MELON IN LIGHT GRAY SOILS

Abstract

This article presents the results of agrochemical experiments conducted in the light gray soils of the Samarkand region to determine the optimal dose of phosphorus fertilizers for late-ripening melon varieties. The study aimed to assess the effect of varying phosphorus doses (50, 75, 100, and 125 kg/ha of P₂O₅) on melon yield and post-harvest storage quality. Field trials were organized in a randomized block design with three replications using the “Qora po‘choq” variety. Alongside a fixed nitrogen (100 kg/ha) and potassium (50 kg/ha) background, phosphorus levels were systematically varied. The results showed that increasing phosphorus doses significantly improved both the yield and storage duration of melon fruits. The optimal dose was found to be 100 kg/ha of P₂O₅, which ensured not only the highest yield but also maintained firmness and sugar content during storage. The findings suggest that phosphorus nutrition plays a crucial role in enhancing both agronomic performance and biochemical stability of melons, thereby contributing to food security and export potential in arid regions.

Keywords

phosphorus fertilizer, late-ripening melon, light gray soils, storage quality, melon yield, post-harvest physiology, agrochemical efficiency.

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