Novel Azospirillum brasilense CW301 with nitrogen fixing ability as well as growth enhancing effect biofertilizer using them and the preparing process thereof

摘要

A novel strain Azospirillum brasilense CW301 with nitrogen fixing ability as well as growth enhancing effect is provided to transfer the fixed nitrogen to plants and increase nitrogen absorption of the plants, so that the strain is used as a substitute for chemical fertilizer. A strain Azospirillum brasilense CW301(KACC 91224P) has nitrogen fixing ability as well as growth enhancing effect and is isolated from wheat. The biofertilizer contains Azospirillum brasilense CW301(KACC 91224P) and is prepared by culturing Azospirillum brasilense CW301(KACC 91224P). The growth of plants is promoted by soaking seeds of plants in the cultured medium of Azospirillum brasilense CW301(KACC 91224P), wherein the plant is tomato, Chinese cabbage, lettuce, cucumber, red pepper, Welsh onion or crown daisy.