Dissolution of potassium feldspar rocks in soils in open‐leaching and closed‐incubation systems

Journal of the Science of Food and Agriculture - Tập 62 Số 4 - Trang 409-412 - 1993
Katherine S Riggs1, J. K. Syers2, J.D. Appleton2
1Ministry of Agriculture. Fisheries and Food, Nobel House, 17 Smith Square, London SW1P 3JR, UK
2Department of Agricultural and Environmental Science, The University, Newcastle upon Tyne NE1 7RU, UK

Tóm tắt

AbstractThe dissolution of two finely ground potassium feldspar rocks (KFR). from Malawi and Sri Lanka, was examined in four indigenous acid soils using open‐leaching and closed‐incubation systems. Increases in fractions of soil potassium (K), compared to the control, indicated that the extent of dissolution of KFR was usually substantially enhanced in the leaching system. Because the leaching system represents the field situation more closely, it is the most appropriate for assessing the dissolution of potassium feldspar rocks (KFR) in soils and their potential as direct‐application K fertilisers.

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Tài liệu tham khảo

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Thông tin xuất bản

Journal of the Science of Food and Agriculture

Tập 62 Số 4

409-412

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