摘要
通过不同的试验设计,3年间对风沙土进行秸秆等有机物料培肥,研究其结合态腐殖质中胡敏酸含量与E4/E6的变化,结果表明,不同有机物料培肥均能提高风沙土腐殖质中胡敏酸的含量,根据2000年测定结果,与CK相比,提高幅度在0.02～0.17 C g/kg之间,但胡敏酸与腐殖质的比值,随着培肥年限的增加,与CK处理比较,有降低的趋势,降低幅度在0.17％～2.23％之间。胡敏酸的E4/E6在有机物料处理间变化规律不明显,但其值都大于CK,随培肥年限的增加,处于动态的变化。
Three years experiments were conducted to study the effect of organic manure application on humic acid and E4/E6 of humus in wind blown soil. The results indicated that different organic matter could improve the contents of humic acid in humus, compared with CK, the content of humic acid in the treatments of organic manure increased from 0. 02 C g/kg to 0. 17 C g/kg according to the data in 2000, but the ratio of humic acid to humus, compared with CK, decreased from 0. 17 to 2. 23 percent with the application of organic manure. The ratio of E4/E6 were no obvious difference in all organic manure treatments, but higher than that of CK, and kept dynamic changes.
出处
《黑龙江农业科学》
2003年第4期18-20,共3页
Heilongjiang Agricultural Sciences
基金
黑龙江省科技攻关项目部分内容
