不同培肥对采煤塌陷地复垦土壤氮素变化的影响  

The Influence of Different Fertilization on Nitrogen in Subsidence Reclamation Soil

作　　者：许剑敏[1] 洪坚平[1] 梁利宝[1] 

机构地区：[1]山西农业大学资源环境学院,山西太谷030801

出　　处：《山西农业科学》2012年第5期498-501,共4页Journal of Shanxi Agricultural Sciences

基　　金：山西省重大科技攻关项目(20060310990103);山西省科技攻关项目(2006031027)

摘　　要：通过连续2 a对塌陷地土壤复垦,研究玉米不同生育期内不同施肥条件下土壤中全氮、微生物氮和可溶性有机氮含量的变化。结果表明,塌陷地复垦土壤的全氮、微生物氮和可溶性有机氮含量逐年增加。有机肥+无机肥(N+M)处理对提高土壤全氮效果最好,有机肥+无机肥(N+M)、有机肥+无机肥+菌肥(N+M+F)和有机肥(M)处理间的差异不显著;有机肥+无机肥+菌肥(N+M+F)处理对提高土壤微生物氮和可溶性有机氮含量效果最好。Through two successive years＇ reclamation to collapse soil,change of total soil nitrogen,microbial N and soluble organic N contents at various growing stages in various fertilization treatments were studied.The results showed that： the total soil N,microbial N and soluble organic N increased year by year;treatment of organic manure ＋ inorganic fertilizer had the best effect to increase soil total N;there was no significant difference between treatments of organic manure ＋ inorganic fertilizer or organic manure ＋ inorganic fertilizer ＋ fungus fertilizer compared with the treatment of orgainic N;organic manure ＋ inorganic fertilizer ＋ fungus fertilizer had the best effect to improve soil microbial N and water soluble organic N contents.

关 键 词：塌陷复垦 全氮 微生物氮 可溶性有机氮 

分 类 号：TD88[矿业工程—矿山开采] S153.6[农业科学—土壤学]