两种微生物菌剂对小麦幼苗生长和磷吸收机理的影响研究  

Effect of two microbial concoctions on wheat seedling growth and phosphorus absorption

作　　者：洪坚平[1] 谢英荷[1] Neumann Guenter Volker Roemheld 

机构地区：[1]山西农业大学资源环境学院,太谷030801 [2]德国霍恩海姆大学植物营养系,斯图加特D-70593

出　　处：《中国生态农业学报》2008年第1期105-108,共4页Chinese Journal of Eco-Agriculture

基　　金：国家留学基金项目(98002);山西省留学基金项目(2003055)资助

摘　　要：采用盆栽试验,研究了施用不同形态磷肥的土壤上接种SP11(细菌)、T50(真菌)后对小麦幼苗生长和磷吸收利用的影响。结果表明:SP11(细菌)可增加小麦根际磷酸酶活性和促进有机酸分泌,降低土壤pH,显著促进小麦生长,提高小麦对磷的吸收;T50(真菌)虽可增加小麦根际磷酸酶活性,但在整个试验中提高小麦对磷的利用率和促进小麦生长等作用不稳定,故SP11细菌接种剂可作为生长促进剂推广应用。The effects of SP11 （bacteria） and T50 （mycophata） inoculation on seedling growth and phosphorus absorption of wheat under different P fertilizer applications were studied under pot experimental conditions. The results show that SP11 increases acid phosphatase activity in wheat rhizosphere,improves organic acid secretion,decreases soil pH,remarkably promotes wheat growth, and enhances phosphorus absorption of wheat. Although T50 may increase rhizosphere phosphatase,it has equivocal effects on phosphorus absorption and wheat growth. Thus SP11 bacteria inoculation could find a wider use as growth promoters.

关 键 词：生物菌剂 小麦幼苗生长 酸性磷酸酶 吸收机理 生长促进剂 

分 类 号：S143.91[农业科学—肥料学]