nitrogen-free medium 中文意思是什麼
nitrogen-free medium
解釋
無氮培養基-
In this study, 5 rhizosphere soil samples of wheat, maize, ryegrasses and willow tree were collected from campus of china agricultural university and beijing chaoyangqu, respectively. a total of 29 isolates were selectively obtained from these rhizosphere soli samples based on their growth on nitrogen - free medium and their resistance to 100 for 10 - 15 min
本文在中國農業大學科學園區採集了小麥和玉米的根際土，從北京市朝陽區窪里分別選擇不同環境採集2個黑麥草根際土壤樣品和1個柳樹根部的土壤樣品，分別從這5個土壤樣品中分離固氮的芽孢桿菌。 -
In nitrogen - free medium, the logarithmic phase of the strain w12 was about 13 - 48 h. in logarithmic period its doubling time was 2 - 4 h in nitrogen - free medium, 0. 9 - lh when enough nk
在無氮培養基上該菌在13h后進入對數生長期，並持續至48 52h ，這期間其生長代時為2 - 4h ，有氮培養基上為0 . 9 - 1h 。
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