Phosphate rich organic manure is a type of fertilizer used as an alternative to diammonium phosphate and single super phosphate.

Directly mixing finely ground rock phosphate mineral into organic manure produces a fertilizer known as phosphate rich organic manure (PROM). Our Product research indicates that this substance may be a more efficient way of adding phosphorus to soil than applying chemical fertilizers. Other benefits of PROM are that it supplies phosphorus to the second crop planted in a treated area as efficiently as the first.

Microorganisms produce organic acids and heat, allowing the slow dissolution of phosphorus from rock phosphate dust added to the soil, allowing more phosphorus uptake by the plant roots. Organic manure can prevent ions of other elements from locking phosphorus into insoluble forms. The phosphorus in phosphate enhanced organic manure is water insoluble, so it does not run into ground water or runoff any more than that from chemical fertilizers