【摘要】 本文报导了三年来开展土壤添加Cr³⁺、Cr⁶⁺和施用铬渣钙镁磷肥对农作物生年和产量影响的研究。结果表明,只要适当控制农田中铬化合物和铬渣钙镁磷肥的用量,不会对农作物的产量和食物产生不良影响。提出了铬渣钙镁磷肥中铬的控制指标。更多还原

【Abstract】 This paper is a synthesis of works realised three years on Chromium added to soil. The performance of these tests was to investigate the effects of Cr(Ⅲ), Cr(Ⅵ) and Calcium Magnesium Phosphate produced with Chromium Residue (CRCMP) added to soil on crops growth and accumulation. The results of the field trails growing wheat, cabbage, corn, soybean and rice have shown that the suitable control of the rate of Chromate and CRCMP application to farmland is no harmful to the crops growing and the food。Maximum allowable Hints of Chromium in CRCMP which is applied to upland field or paddy field have been established。更多还原