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Phosphorous Fertilizer - Rajphos |
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| 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 |