The results suggest that medium 14 mixing of peat, fine perlite, and carbonized chaff to a scale is recommended to tobacco seedling production with floating system.

• 研究结果表明，由泥炭、炭化谷壳和珍珠岩按一定比例配成的14号基质较好的协调了基质中固、液、气的比例，适于漂浮育苗；