P.W. Arnold | Bookhype

Dec 31, 1970

Cover of Behaviour of Potassium in Soils

Behaviour of Potassium in Soils (Proceedings of the International Fertiliser Society, #115)

Dec 31, 1962

Cover of Soil Potassium in Long Term Experiments. Potassium Status of Some English Soils

Soil Potassium in Long Term Experiments. Potassium Status of Some English Soils (Proceedings of the International Fertiliser Society, #72)