Balanced Fertilityzation for better crops in Viet Nam = Bón phân cần cho cây trồng tốt hơn tại Việt Nam Nguyen Van Bo, Ernst Mutert, Cong Doan Sat - 1st. - Canada 2003 - 141p. Color image 24cm Refrences: P.133 - 140 Subjects--Topical Terms: Crops Subjects--Index Terms: Crops Soil types Agriculture Livestock Crop factor Dewey Class. No.: 631.8 / B