Experimental Study on the Remediation Effect of Different Safety Utilization Technical Measures and Combinations on Light to Moderate Cadmium Contaminated Rice Fields
In order to reduce the enrichment of cadmium in rice,improve the safe utilization rate of polluted farmland,steadily enhance the environmental safety of farmland and the quality and safety guarantee level of agricultural products,and draw on the current technical measures for safe utilization of farmland,a remediation experiment is carried out for light to moderate cadmium contaminated rice fields.The experiment set up five experimental areas,including low accumulation rice varieties,soil conditioners,foliar inhibitors,low accumulation rice varieties+water regulation+foliar inhibitors,and low accumulation rice varieties+soil conditioners.The agronomic characters and cadmium content of rice treated with different technical measures and those combinations are measured separately.The results show that the suitable low accumulation rice varieties for planting are Yongyou 1540,Yongyou 4949,Yongyou 15,and Yongyou 2640.The recommended soil conditioner and foliar inhibitor for application are Futaiweitianmei(granules)and Lülongxi,respectively.The combination of various individual technical measures has a good cadmium treatment effect.
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