摘要
1989年进行了小麦、玉米施用CWV-22的苗期砂培试验。结果表明,在10～15mM NH_4^+的培养介质中,CWV-22能与小麦、玉米根系形成联合体;同Sp7比较,施用CWV-22的小麦株高,叶数,干物重和吸氮量分别增加4.6％,6.7％,20％和34％,玉米株高、叶数,干物重和吸氮量分别增6.5％,2.2％,30％和17％,同不施菌的比较,施用CWV-22的小麦株高、叶数、干物重和吸氮量分别增加6.4％,9.6％,34％和43％,玉米株高、叶数、干物重和吸氮量分别增加21％,9.3％,16％和20％。
The sand culture experiment in 1989 showed that CWV-22 could form the vombiant with roots of wheat and maize in the presence of 10～15mM NH_4^+.Compared with sp7,the hight,leaf amount,dry wight and N uptake amount of wheat and maize treated with CWV-22 raised 4.6％～6.5％。2.2％～6.7％,20％～30％and17％～34％respectively Compared with the control,4 inalcatrixes mentioned above increased 6.4％～21％,9.3～9.6％,16％～34％and 20％～43％respectiyely
关键词
小麦
玉米
固氮细菌
固氮作用
营养
nitrogen-fixing bacteria
azotifjcation
Triticum aestivum
corn
nitrogen nutrition
sand culture
