Effect of different levels phosphatic fertilizer on soil phosphorus fractions of mung bean (Vigna radiata L.)

This research was carried out to explore the changes of different soil phosphorus fractions, yield, and quality of mung bean (Vigna radiata) as related to variable phosphorus fertilizer rates in Inceptisols of Prayagraj. Thirteen treatments with different levels of phosphorus application affected Saloid-P, Al-P, Fe-P, Ca-P, inorganic phosphorus, total phosphorus, and organic phosphorus fractions at 0-15 cm and 15-30 cm depth soil. The results showed that there is a significant increase in all the fractions of phosphorus with an increase in the rate of fertilizer. The highest values were found in T₁₃. Grain yield and test weight also showed a significant increase to a maximum value of 24.0 quintals/ha, and a test weight of 64 g in T13. The study underlines the importance of phosphorus fertilization for increasing the yield and quality of mung bean. It also underlines careful management, as this might result in a possible phosphorus fixation and leaching that would have negative effects on soil fertility over the long term. These findings suggested that optimally managed rates of phosphorus application are required to accomplish sustainable mung bean cultivation in phosphorus-deficient soils.