后季稻塑盘旱育秧的出苗率、成秧率、地上部鲜重和根数都不及肥床旱育秧。但由于塑盘旱育秧抛栽时根系损伤轻，抛后新根发生量和老根恢复情况均明显好于肥床旱育秧，产量也高于肥床旱育秧。塑盘旱育秧的壮苗标准为：苗高１５ｃｍ，叶龄６～７张，假茎粗０４５ｃｍ，黄叶、病叶少，少数苗带蘖。光合能力强，碳水化合物积累高，百株烘干重１５ｇ左右，根系粗壮有力，根冠比０４５左右。要培育出壮秧，应做到适期播种、营养土培肥、适当降低播种量，水控与化控相结合。 After the late rice plastic tray drought nursery seedling emergence rate into seedlings, the fresh weight and number of roots are less than bed dry seedlings. However, due to plastic plate dry nursery throwing throwing transplanting at the root damage, throwing the amount of new roots and the recovery of roots were significantly better than the fertilizer bed drought nursery, the yield is also higher than the fertilizer bed dry nursery seedlings. Plastic plate dry nursery seedlings strong seedling standards: seedling height 15cm, leaf age 6 to 7, pseudostem crude 0.45cm, yellow leaves, less diseased leaves, with a few seedlings with tillers. Photosynthetic ability, high accumulation of carbohydrates, about 100 grams of dried weight about 15g, sturdy roots, root and shoot ratio of about 0.45. To cultivate strong seedlings, should be properly sown, nutrition soil fertility, appropriate to reduce seeding, water control and chemical control combined.