商品簡介
Kyuma (Kyoto University) explains the interactions between human, environmental, biological, and chemical factors that protect the long- term productivity of rice paddy soils in this text/reference for students and researchers concerned with maintaining the sustainability of wet rice agriculture. Chapters cover changes in paddy soils in the annual cycle of submergence and drainage, the solubility and redox equilibria of iron systems in submerged paddy soils, long-term morphological changes induced by alternating submergence and drainage of paddy soils, and fertility evaluation and rating of paddy soils in tropical Asia. The book is distributed in the US by ISBS. Annotation c2004 Book News, Inc., Portland, OR (booknews.com)