水稻旱育秧在推广过程中,有少数苗床出苗不整齐、秧苗不壮、成秧率不高。采用“三足两膜”措施,则保证了旱育秧出苗整齐、成秧率高、秧苗健壮。“三足两膜”是指:苗床底肥足、播前苗床底水施足、播后盖土足,盖双膜。苗床底肥足:床土施足有机肥,能提高上壤缓冲能力,增加土 Rice dry nursery seedlings in the promotion process, a small number of seedling emergence irregularities, seedlings are not strong, into a seedling rate is not high. The use of “three-legged two membrane” measures, promised dry nursery stock sprout neat, high rate of seedlings, seedlings robust. “Three-legged two-film” refers to: seedbed bed enough fat before sowing bed water sufficient foot, sowing cover soil foot, cover double membrane. Bed seedling foot enough: soil bed enough organic fertilizer, can improve the soil buffer capacity, increase soil