生物菌肥与单硅酸混用对水稻子粒的降镉效果

Effect of biological bacteria mixed with monosilicic acid on cadmium reduction of rice grain

通过田间试验研究了中低水平土壤镉背景值情况下,水稻(Oryza.sativa L.)对重金属Cd吸收富集情况及探索采用生物和化学等方法治理Cd污染的效果。结果表明,通过对土壤添加特定微生物肥、叶面喷施融地美能降低水稻子粒中镉含量19%以上,最高增产达26.74%。该技术为中轻度Cd污染水稻田土壤修复新技术的应用提供指导。

Field experiments were carried out to study the absorption and enrichment of cadmium by rice(Oryza.sativa L.)under the condition of low and medium level soil cadmium background value,and to explore the effect of biological and chemical methods on cadmium pollution control.The results showed that the Cd content in rice grain could be reduced by more than 19%by adding specific microbial fertilizer to soil and spraying Ecosil on leaves,and the maximum increase of yield was 26.74%.This technology can provide guidance for the application of the new technology of soil remediation in paddy field with moderate and mild cadmium pollution.