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Product Details 基本信息 ISBN-13 书号 9781138028166 Author 作者 Amadou Keita Format 版本 平装-胶订 Pages Number 页数 222页 Publication Date 出版日期 2015-10-21 Shipping Weight 商品重量 362g Language 语种 英语 Book Contents 内容简介 The impact of subsurface drainage on ferrous iron concentrations in the African Tropical Savannah rice irrigated valley bottom soils was investigated. The investigations and the analyses where implemented both in two typical valleys (Tiefora and Moussodougou) and in designed experiments. The results showed that subsurface drainage increases ferrous iron concentration in the hematite dominant soils - from 935 mg/l to more than 1106 mg/l in the case of the soil of Moussodougou – but also reduces soil acidity – from pH 5.6 to 7.3 in Moussodougou. This effect will eventually reduce ferrous iron intake by rice roots, alleviating toxicity.
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