Comparative Emeieney of Gypsum and Iron Pyrites in SodieSoil Reelamation

Department of Agricultural Chemistry and Soil Science, R.B.S. College, Bichpuri, Agra, Uttar Pradesh, 283105.

* Present address: Department of Soil Science, N.D. University of Agric.&Tech., Kumarganj, Faizabad, U.P., 224229.