TY - BOOK AU - J.S. Kanwar AU - J.S. Grewal, TI - Phosphorus fixation in Indian soils U1 - 631.41 PY - 1971/// CY - New Delhi PB - Indian Concil of Agricultural Research N1 - J.S. Kanwar & J.S. Grewal: Phosphorus fixation in Indian soils. New Delhi. Indian Concil of Agricultural Research, 1971.--(631.41KAN) ER -