摘要
黑龙江省土壤土著大豆根瘤菌的数量变化范围在３～１００００个／ｇ鲜土，受种植年限和土壤质地等因素的影响，黑土土著菌数明显的高于其它土类。在寄主植物大豆生长时期，土壤中根瘤菌数量在一定的幅度内波动变化，即存在着土壤载菌量的问题。寄主植物存在与否对黑土和白浆土的载菌量有明显的影响，而对风沙土和草甸土影响不大。接种菌Ｂ１６１１ＣＳｔｒ＋、Ｒｉｆ＋、Ｇｅｎ＋在黑土中的生存定殖能力强于在白浆土，在风沙土和盐碱土上最弱。
The range of native rhizobium japonicum population was in between 3 and 10000 cells/g. fresh soil in soils of Heilongjiang province, which was influenced by planting history, soil property etc. The populations in black soil were higher than those in other soil types. During the growth of host plants, the populations in soils changed within the definite range, which means the existence of the concept of soil bacterium capacity. Planting host plants significantly influenced the bacterium capacity of soil on black and lessive soils, but less influence on sandy and meadow soils. The survival and persistent ability of the inoculum strain B1611C with Str +,Rif +,Gen + in black soil was more than that in lessive soil. The weakest survivel ability was found in sandy and salinization soil.
出处
《黑龙江农业科学》
1997年第5期24-27,共4页
Heilongjiang Agricultural Sciences
基金
省自然科学基金
关键词
土著大豆根瘤菌
数量
土壤载菌量
生存
定殖
Native rhizobium japonicum population
Bacterium Capacity of Soil
Survival and persistence
