Proceeding(s) of the International seminar
Proceeding(s) of the International seminar The Role of potassium in crop production International Potash Institute - Pretoria International Potash Institute 1980. - 135 p fig. 30 cm tab.
jointly arranged by International Potash Institute, Bern, Switzerland and The Fertilizer Society of South Africa
0909071357
Potassium in crop production
Fertilizer
631.83(063) / I61P