TY - JA AU - Dev,S. AU - Shukla,U.C. TI - Effect of P and Zn sources and their levels on the expression of P - Zn relationship in corn PY - 1981/// KW - Mineral deficiencies KW - Phosphorus KW - Zinc KW - AGROVOC KW - Zea mays N1 - Tables, references p. 474 T2 - Madras Agricultural Journal ER -