Vol. 7, Issue 5 (2019)
Effect of rock phosphate in presence or absence of organic manures and lime on phosphorus availability and dry matter yield of soybean (Glycine max)
Author(s): Tshering Palden Bhutia, N Surbala Devi and T Sanahanbi Devi
Abstract: A pot experiment was carried out to study the effect of rock phosphate in presence or absence of organic manures and lime on soil phosphorus availability, plant concentration and dry matter yield of soybean (var. JS-335). Results showed that the accumulation of available P in soil, plant P concentration and dry matter yield were affected by rock phosphate, manures and lime application. Liming enhanced organic P mineralization thereby increasing P availability. Among the different treatments, significantly higher available P was accumulated in T9 (Soil + RP + VC @ 10 t ha-1 + lime) followed by T8 (Soil + RP + compost @ 10 t ha-1 + lime) on 30th and 60th DAS. However on 90th DAS and at harvest, T9 (Soil + RP + VC @ 10 t ha-1 + lime) was statistically at par with T8 (Soil + RP + compost @ 10 t ha-1 + lime). Results further examined that concentration of P in soybean was found in T3 (soil + RP + FYM @ 10 t ha-1) showing parity with T2 (Soil + RP) while T9 (soil + RP + VC @ 10 t ha-1 + lime) showed significantly higher dry matter yield than other treatments at the time of harvest. Effectiveness of rock phosphate as a P source for crop production is enhanced by the solubility effect of organic manures and lime application.
Pages: 2024-2027 | 218 Views 40 Downloads
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How to cite this article:
Tshering Palden Bhutia, N Surbala Devi, T Sanahanbi Devi. Effect of rock phosphate in presence or absence of organic manures and lime on phosphorus availability and dry matter yield of soybean (Glycine max). Int J Chem Stud 2019;7(5):2024-2027.
