Integrated phosphorus management using PROM and inorganic fertilizers for enhanced growth, yield, and nutrient uptake of chickpea in inceptisol

Abstract

Phosphorus availability in soils is often limited due to fixation by sesquioxides, affecting crop productivity, particularly in leguminous crops like chickpea. A field experiment entitled “Effect of Different Levels of PROM on Yield and Quality of Chickpea in Inceptisol” was conducted during Rabi 2024-25 at the Agronomy Farm, College of Agriculture, Kolhapur. The experiment was laid out in a Randomized Block Design with ten treatments: T1; control, T2;100% P2O5 through single super phosphate (SSP),T3; 100% P2O5 through Di-ammonium phosphate (DAP),T4; 100% P through Phosphate Rich Organic Manure (PROM)), T5; 75% P2O5 through PROM + 25% P2O5 through SSP, T6; 75% P2O5 through PROM + 25% P2O5 through DAP, T7; 50% P2O5 through PROM + 50% P2O5 through SSP, T8; 50% P2O5 through PROM + 50% P2O5 through DAP, T9; 25% P2O5 through PROM + 75% P2O5 through SSP and T10;. 25% P2O5 through PROM + 75% P2O5 through DAP. These treatments were replicated thrice and statistically tested using randomized block design. The results indicated that the treatment T3; 100% P2O5 through Di-ammonium phosphate (DAP) recorded the highest plant height at harvest (40.33 cm), active root nodules plant-1 at 50% flowering (41.27), root length (14.03cm), root biomass(1.60gm), grain yield (22.12 q ha⁻¹), straw yield (25.1 q ha⁻¹), and total nutrient uptake for nitrogen, phosphorus and potassium (92.49, 17.80 and 51.48 respectively) were observed in the same treatment T3; 100% P2O5 through DAP.