According to the research of the accumulation of dry matter and carbon-nitrogen metabolism which are affected by the ratio between basal fertilizer and top-dressing, the results show that, 1.
通过对不同基追肥比例对烤烟干物质累积和碳氮代谢的影响研究,结果表明:1。
2
The diluting gas is hydrogen, argon or nitrogen. The mol ratio of carbon source to diluting gas is 0.5-5.