Study on Simplified and Labor Saving Cultivation of Tobacco Ⅱ. Study on Bagasse Substituted Peat and its Economic Analysis in Floating System

Reducing the cost of seeding and making sustainable utilization of seedling medium were the purpose of this study. Application effects of medium with different proportion of decayed bagasse and sand were studied in tobacco seedling raising in the floating system. The results showed that the comprehensive characters of tobacco seedlings were the best when the seedlings were raised with 40% decayed bagasse and 60% sand，and that the seedling fostered by this kind of medium can also meet the tobacco standards of strong seedling. Therefore, it is feasible to use decayed bagasse as a substitute in tobacco float seedling matrix and make considerable economic benefit and ecological benefit.