地处浙西南山区的遂昌县妙高镇 1996～ 2 0 0 0年以来累计推广塑盘抛秧面积 3万多亩。在几年抛秧实践中 ,发现秧苗抛植均匀度的好与差 ,将直接影响产量高低。抛栽均匀、个体生长健壮 ,群体结构合理 ,青秆黄熟 ,有利夺取高产 ;抛秧不均匀、局部形成核心禾 ,造成群体分布不匀 ,出 Located in the mountains of Suichang County, Miaogao Town, southwest Zhejiang Province since 1996 ~ 2000 to promote a total of more than 30,000 acres of cast plastic thrown seedlings. Casting in a few years practice, found that throwing uniformity and good seedlings, will directly affect the level of output. Throwing planted uniform, robust growth of individuals, the population structure is reasonable, blue stalk ripening, favorable to seize high yield; throwing seedling heterogeneity, the local formation of core Wo, resulting in uneven distribution of the population, out