Method for reducing content of chromium in crops in chromium polluted farmland

The invention relates to a method for reducing the content of chromium in crops in the chromium polluted farmland. The method comprises the following steps: mixing calcium chloride, calcium hydroxide,attapulgite clay and high-alumina cement according to a molar ratio of 1:2:0.5:1, adding water, and stirring all above materials at 80 DEG C for 4 h to prepare a granular novel soil remediation mineralizer; and fully mixing the novel soil remediation mineralizer, a composite fertilizer and rice husk powder according to a weight ratio of 1:1:0.5, and uniformly sprinkling 50 KG of the obtained mixture in to every 666.6 m of the farmland, wherein wheat seeds are sowed or seedlings are transplanted in different seasons. The method for reducing the content of chromium in crops in the chromium polluted farmland has the advantages of simplicity in operation, low cost, good effect, and no influences on the normal production of grains. 本发明涉及种降低铬污染农田农作物铬含量的方法，利用氯化钙、氢氧化钙、凹凸棒粘土、高铝水泥按摩尔比为1:2:0.5:1的比例混合，加水，控制温度80℃,搅拌4小时，制成颗粒状新