接种微生物对大豆生长及其根际土壤的影响  

Effects of microorganism inoculation on growth of soybean and its rhizosphere soil

作　　者：毕银丽[1] 陈书琳[1] 孔维平[1] 冯颜博[1] 

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083

出　　处：《生态科学》2014年第1期121-126,共6页Ecological Science

基　　金：十二五"863"作物生境过程模拟与动态优化决策技术(2013AA102904)

摘　　要：对沙土中的大豆接种丛枝菌根真菌及丛枝菌根真菌与解磷菌和根瘤菌联合接种,动态监测大豆的生长状况和营养吸收情况。结果表明,在沙土中,根瘤菌与丛枝菌根真菌的组合效应对豆科植物营养元素的改善最为有效。接种丛枝菌根真菌以及丛枝菌根真菌与其他微生物联合应用对宿主矿质营养吸收尤其是磷吸收有明显的促进作用,种植30 d、45 d和64 d接菌处理植物叶片的平均全磷含量比对照分别高1.45%、73%和56%。接种微生物使植物从土壤中吸收氮、磷、钾元素的强度比对照高,接菌植物根际土壤养分浓度低于对照。接菌植物生物量显著高于对照,单接种丛枝菌根真菌处理、双接种丛枝菌根真菌与解磷菌、双接种丛枝菌根真菌与根瘤菌以及丛枝菌根真菌、解磷菌与根瘤菌三种菌剂混合处理的总生物量分别比对照高出181%、134%、153%和89%。丛枝菌根真菌与解磷菌和根瘤菌三种菌剂混合接种对植物的促生作用并不明显。The growth and mineral nutrition adsorption of soybean were monitored in the sandy soil. The results show that the synergy of rhizobium and arbuscular mycorrhizal fungi （GJ） is most effective for nutrition improvement of soybean. AMF and its synergy with phosphorus-dissolving bacteria （CA） or rhizobium （R） can increase the host absorption of mineral nutrition, especially phosphorus. The total phosphorus （TP） contents in leaf of mycorrhizal plants are 1.45%, 73% and 56% more than those of no mycorrhizal plants in 30 d, 45 d and 64 d, respectively. The nitrogen （N）, phosphorus P and potassium （K） adsorption intensity in mycorrhizal plants is higher than that of no mycorrhizal plants. The biomass of the Gi, Gi＋CA, Gi＋R and Gi＋CA＋R is 181%, 134%, 153% and 89% higher than that of no mycorrhizal plants, respectively. The promoting effect of AMF and its synergy with phosphorus-dissolving bacteria and rhizobium together is not apparent.

关 键 词：丛枝菌根 根瘤菌 解磷菌 根际土壤 

分 类 号：S154.386[农业科学—土壤学]