It's all in the water acid sulphate soils in Vietnam

The Mekong delta is indispensable for food production for Vietnam. It is, however, not as fertile as it seems: 60

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Bibliographic Details
Main Author: Bil, Fritz
Format: Book
Language:Undetermined
Published: Wageningen Wageningen Agricultural Univ 1992
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Institutions: Trung tâm Học liệu Trường Đại học Cần Thơ