水稻无纺布育苗技术研究

Study on Rice Seedkling Growing Technique with Non-Weaving Colth

用40g/m^2无纺布代替塑料软盘育苗,秧苗素质好于塑料软盘苗,同常规床土苗相比具有出苗率高,根系发达,抗逆性强等优点。秧苗能带土全根移植到本田,植伤轻,缓苗快,低位分蘖多,促进了水稻早熟、穗大、粒多,可提高产量6.3％。育苗营养±pH<5,最适播量500～600g/m^2,铺底±2.5cm,复土厚1cm。

Seedlings grown with non-weaving cloth of 40g/m^(-2) instead of plastic tray have better quality and advantages of higher rate of emergence, better-developed root system and better resistance and so on as compared with seedlings in common seed bed soil. The seedlings can be transplanted to the field with soil in whole root. They are least injured, revive quickly and form many tillers in low position. so the seedlings grown with non-weaving cloth can mature earlier,and increase the yield by 6.3 per cnut.The nutritive soil of seed bed should be pH<5 and the optimum seeding rate is 500～600gm^(-2) with ottom soil 2.5cm thick and covered soil lcm thick.