Retarding Influence of Phosphates and Wheat-straw on Nitrogen Loss in Soils Treated with Ammonium Sulphate and Ammonium Nitrate

Sheila Dhar Institute of Soil Science, University of Allahabad, Allahabad-211 002

It has been observed that phosphates retard the nitrogen loss forming stable compounds like ammonium phosphate. Wheat-straw helped in checking the nitrogen loss and increasing the available N and P₂O₅ contents. \(p\)H of the samples was also found to be affected by phosphate, nitrogen and carbon interactions. This finding was substantiated by laboratory and pot experiments conducted with alluvial soils of Varanasi (U.P.).