Investigations reveal enhanced phosphorus availability in wheat through compost and microbial inoculants, suggesting better agricultural practices.
AbstractWe investigated the effect of rock phosphate enriched compost with microbial inoculants on phosphorus (P) fractions in soil and how these forms affect the bioavailability of P to wheat. Phosphorus was applied through rock phosphate enriched compost, P solubilizer and mobilizer and compared with conventional Pfertilizer i.e. single superphosphate. Chemical P- fractions through a sequential fractionation scheme, biomass production, and P concentrations in plant parts were measured to estimate the plant P uptake. Yield, yield attributes and P uptake in straw and grain were significantly affected by the synergistic application of P- enriched compost along with 50% recommended dose for P with the microbial inoculants, compared to absolute control. The percentage contributions of different fractions to the total P content in soil after wheat harvest were in the order of labile P< Fe/Al-P< Ca-P < residual.
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Beura et al. (2025) studied this question.
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