The soil cultivation method was used to study the effect of 9 kinds of PBP(polyphenols of banana pseudostem)and two dosages of DCD (dicyandiamide) on the transformation of urea-N in soil.

• 采用土壤培养法研究了9种香蕉假茎多酚类物质(PBP)及双氰胺(DCD)对尿素在土壤中形态转化的影响。