Micronutrients in agriculture : proceedings of a symposium held at Muscle Shoals, Alabama, April 20-22, 1971 / (Acc: 3372) - Mortvedt, J. J. (John J.); Giordano, P. M.; Lindsay, Willard Lyman, 1926-; Soil Science Society of America; Tennessee Valley Authority (Madison, Wis., Soil Science Society of America, 1972)
Keywords: Trace elements