Preparation of water hyacinth-based phosphocompost and its evaluation against certain phosphorus fertilizers along with phosphate solubilizing bacteria on P availability, uptake and rice productivity

Phosphorus (P) deficiency in soil limits crop yields and can be managed by P fertilizers. But mere applying fertilizers alone may not effective justifying its bioavailability. At present global reserves are declining an increasing way which urges us to find out alternatives. Thus, the work was taken prepare phosphocompost using water hyacinth (Eichhornia crassipes) as feedstock, termite, normal bulking agents cum decomposers enriched with single super phosphate. The effect of on rice(var.ADT-43) productivity, availability uptake evaluated comparing various (single phosphate, rock di-ammonium nano phosphate) combined or without phosphate solubilizing bacteria (PSB). experiment laid a completely randomized design seven treatments including absolute control replicated thrice. Phosphocompost produced termite microbes come superior quality early maturity compared soil. Pot culture study results revealed that rice growth, yield, were significantly (p<0.05) higher SSP + PSB, Nano +PSB treated plants, followed PSB. cost fertilizer (Rs/ha) related yield (kg/ha) found low (Rs.1132/-) than (Rs.1530/-) (Rs.2518/-). Further, PSB helps optimizing long run through solubilization thus sustained uptake. investigation brings light valorization compost will economically viable alternative for