2000•Shanghai nongye xuebaoRequires access
Effects of associated rhizosphere nitrogen-fixing bacteria on pakchoi (Brassica campestris ssp. chinensis L.) and lettuce (Lactuca sativa L.)
Zhang Ying, Hua Fang, Lei Chen, Jin Huanxian, Lingyan Wang, Shi Yue-huan
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Abstract
The preparation of engineering-constructed rhizosphere nitrogen-fixing bacteria (MGH8 plus EH861) was used to soak the seeds of pakchoi (Brassica campestris ssp. chinensis L.) and lettuce and to spray their seedlings in this study. It was further applied to dip lettuce seedling roots before transplanting. The results indicated that the treatments with nitrogen-fixing bacteria led to the slight increase in yield, plant height, number of leaves, dry and fresh plant weights of pakchoi by improvement of nitrogen supply. The result also revealed that the rhizosphere nitrogen-fixing bacteria had positive effect on lettuce^s seedling growth and yield.