TY - BOOK AU - Jain, Surinder Mohan TI - Zinc-copper interaction in crop nutrition U1 - T 631.41 J20Z PY - 1977/// CY - Ludhiana PB - PAU KW - SOIL CHEMISTRY KW - INTERACTION KW - SOIL FERTILITY KW - SOILS KW - SOILS - ZINC CONTENT KW - WHEAT KW - ZINC - COPPER N2 - Nature of zinc-copper Interaction in 11 soils differing in DTPA-extractable zinc and copper contents was investigated Wheat responded to an application of zinc in soils which were deficient or marginal in zinc. Soils which were low both in zinc and copper ER -