土壤固定
10 bacterial isolates were isolated from paddy soil and vegetable-growing field with nitrogen-free Ashby medium. They have been confirmed to have nitrogenase activities and identified to be the nitrogen-fixing bacteria by means of gas chromatography test.
用阿什比无氮培养基从水稻土、菜园土中筛选出10株菌,经气相色谱测定,选出的菌株具有固氮酶活性,初步鉴定为固氮菌;
Root nodule nitrogen-fixing fermentation activity was higher with of application of 2.0 mg Se/ kg soil, where it was 49.41% higher than in control plot.
根瘤固氮酶活性以施用2mg Se/kg土的处理为最大,比对照增加了49.41%。
Effects of different conservation tillage on amount and distribution of soil ammonifying bacteria, nitrobacteria and nitrogen-fixing bacteria
不同保护性耕作措施对三种土壤微生物氮素类群数量及其分布的影响
英语网 · 双语娱乐资讯
英语网 · 四六级英语
英语网 · 英语词汇