Phosphorous Fertilizer - Rajphos

Importance of the Fertilizer Rajphos is rock phosphate traded by Rajasthan State Mines and Mineral. It is insoluble in water. So in acidic soils it slowly release phosphorous and reduces the losses.
Amount of Available Nutrients Rajphos contains 18-20 % Phosphorous.
Compatibility in fertilizer mixtures Rajphos is not compatible with Ammonium Phosphate and Super phosphate.
Reaction of the Fertilizer in Soil Rajphos on reaction with acidic soils convert tricalcium phosphate in the rock phosphate to monocalcium form.
Situations where Recommended For perennial crops like rubber, oil palm, coffee, tea, cardamom etc. phosphorus in the form of rock phosphate can be applied. Rajphos is recommended in acidic soils also.
References 1. Yawalkar, K. S., Agarwal, J. P., and Bokde, S., (1996) Manures and Fertilizers, Agri-Horticultural Publishing House, Nagpur