Potassium in soil:proceedings
International Potash Institute, 9th, Colloquium, Landshut, F
Potassium in soil:proceedings - Landshut International Potash Institute 1972 - 23cm. 220p
SOILS -- POTASSIUM CONTENT -- CONGRESSES
SOILS -- POTASSIUM CONTENT -- CONGRESSES
631.416 I-3P
Potassium in soil:proceedings - Landshut International Potash Institute 1972 - 23cm. 220p
SOILS -- POTASSIUM CONTENT -- CONGRESSES
SOILS -- POTASSIUM CONTENT -- CONGRESSES
631.416 I-3P