磷石膏和生物质炭联合改良云南红壤的试验研究  

Experimental study on effect of both phosphogypsum and biochar in Yunnan red soil

作　　者：舒艺周 SHU Yizhou(Yunnan ICL YTH Phosphate Research and Technology Center Co.,Ltd.,Kunming 650228,China)

机构地区：[1]云南云天化以化磷业研究技术有限公司

出　　处：《磷肥与复肥》2019年第12期40-42,共3页Phosphate & Compound Fertilizer

摘　　要：遏制红壤酸化、改良红壤结构、提高红壤肥力以及改良红壤理化性质具有重要意义。结合磷石膏和生物质炭各自的特性,提出磷石膏和生物质炭联合改良云南红壤的思路,并通过盆栽模拟试验进行验证。结果表明:磷石膏和生物质炭联合施用,能够有效改善红壤的物理化学性质,表现为土壤体积质量下降,总孔隙率升高,土壤中碳、总氮、总磷和有效硫的含量增加。Controlling acidification,improving soil structure and fertility, improving the physical and chemical properties of red soil are significant. Based on the characteristics of phosphogypsum and biochar, it is proposed that using phosphogypsum and biochar together to improve red soil. The results show that the application of phosphogypsum and biochar together can effectively improve the physical and chemical properties of red soil,which shows that soil bulk density decreases, total porosity increases, and the contents of carbon, total nitrogen,total phosphorus and available sulfur in soil increase.

关 键 词：磷石膏 红壤 生物质炭 土壤改良 

分 类 号：S156.6[农业科学—土壤学]