01044nam a2200193Ia 4500 CTU_141590 210402s9999 xx 000 0 und d 631.82 R745 The role of potassium in agriculture Edited by V. J. Kilmer, S. E. Younts [and] N. C. Brady. Managing editor: Richard C. Dinauer. Assistant editor: David M. Kral. Madison, Wis. American Society of Agronomy 1968 Proceedings of a symposium sponsored and financed by the Tennessee Valley Authority and the American Potash Institute and cosponsored by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, and held at the National Fertilizer Development Center, TVA, Muscle Shoals, Alabama, June 18-19, 1968." Potassium fertilizers,Potassium in agriculture,Soils,Plants Potassium content,Effect of potassium on Bạch Trúc Trung tâm Học liệu Trường Đại học Cần Thơ