河南农业科学2018，Vol.47Issue(3)：49-54,6.DOI:10.15933/j.cnki.1004-3268.2018.03.010
稻壳炭改良耕地土壤调控农业面源污染的应用研究
Application of Rice Husk Charcoal in Cultivated Soil to Control Agricultural Non-point Source Pollution
摘要
Abstract
To study the improving effect of rice husk charcoal on non-point source pollution of arable land,with no application of biochar as control,the rice husk charcoal was tilled in the surface soil in a different volume ratio,and the changes of physical and chemical properties of soil,including temperature, pH value, organic matter content, moisture content, soil porosity, CEC, content of Al, and the concentrations of nitrogen and phosphorus in farm runoff water were investigated.The results showed that the physical and chemical properties of soil were improved,and the interception ability of nitrogen and phosphorus in soil was enhanced after use of rice husk charcoal.When the ratio of charcoal to soil was 0.6,the improving effect was the best,the average temperature of soil increased by 2.03 ℃,pH value increased by 13.56%,the contents of organic matter,moisture,soil porosity,CEC increased by 43.11%, 19.60%,54.55%,65.50%,and the content of Al decreased by 4.84% compared to the treatment without rice husk charcoal,meanwhile the concentrations of TN,TP,COD,NH3-N reduced by 82.69%, 90.32%,60.33%,83. 46%,respectively. The application of rice husk charcoal could improve the physical and chemical properties of soil,enhance the interception ability of nitrogen and phosphorus in soil and control the agricultural non-point source pollution effectively.关键词
稻壳炭/水体富营养化/农业面源污染/氮、磷损失/土壤改良Key words
Rice husk charcoal/Eutrophication/Agricultural non-point source pollution/Nitrogen and phosphorus loss/Soil improvement分类
农业科技引用本文复制引用
刘新,赵珍,戴天磊,唐晓岚,许梦文,张齐生..稻壳炭改良耕地土壤调控农业面源污染的应用研究[J].河南农业科学,2018,47(3):49-54,6.基金项目
南京市科委科技计划项目 （）
江苏省高校优势学科建设工程资助项目(PAPD) （PAPD）
国家自然科学基金项目(31270746) （31270746）
