摘要
以小麦为试验对象,采用盆栽方式,利用前人研究有机肥对土壤-高粱系统中重金属污染的环境效应试验(已完成重金属和第1次有机肥的施入)后的土壤,研究了不同外源汞水平下,连续施用有机肥对土壤汞的形态转化及小麦吸收汞的影响。结果表明;在同一汞水平条件下,随着有机肥施用量的增加,土壤有效态汞含量逐渐减少,小麦茎叶和根对汞的吸收也逐渐减少。试验以低汞高有机肥处理对土壤汞的有效态的减少效果最佳。
Chuannong 4, a wheat variety, was planted in pots with different mercury pollution soils under the continuous applying organic fertilizer to study the effects on mercury form transformation in soil and mercury absorption by wheat. The results showed that the effective mercury content in soil and mercury absorption by wheat stems, leaves and roots decreased with increment of organic fertilizer amount under the same mercury content in soil. The best result of reducing effective mercury content in soil was obtained from the treatment with low mercury content in soil and higher application amount of organic fertilizer.
出处
《贵州农业科学》
CAS
北大核心
2009年第6期93-95,共3页
Guizhou Agricultural Sciences
基金
贵州茅台科技联合基金项目"茅台酒原料基地生产关键技术研究"[黔科合茅科联字(2008)7001]
关键词
连续施用
有机肥
小麦
全汞
有效汞
continuous application
organic fertilizer
wheat
total mercury
effective mercury
