Chromium（VI） Reduction in Wheat RhizosphereEnglish Full Text
CHEN NENGCHANG, S. KANAZAWA and T. HORIGUCHI (Lab Plant Nutrition, Faculty of Agriculture, Kagoshima University (Japan); Division of Bioresource and Bioenvironmental Science Graduate School, Kyushu University (Japan))
Abstract: Reduction of Cr（VI） to Cr（III） were studied in a fresh wheat rhizosphere soil （Kuroboku, high humic andosol） pretreated with a basal fertilizer consisting of （NH4）2SO4, P2O5 and KH2PO4 and with K2Cr2O7 by using a rhizobox system. It was found that rhizosphere exerted a positive effect on Cr（VI） reduction. Part of the reason was the decrease of pH in the rhizosphere due to application of （NH4）2SO4, implying that application of physiologically acid fertilizers would reduce Cr（VI） toxicity to plants.
Keywords：
- Series：
(D) Agriculture
- Subject：
Fundamental Science of Agriculture; Agronomy
- Classification Code：
S158.3
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