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为寻找再生稻抛秧栽培高产稳产的实施方案， 利用二次回归模型， 设计优化技术组合试验， 结果表明： 再生稻抛栽的综合栽培技术是： 每６６７ｍ２ 抛栽１６４ 万丛（ 每丛２ 株） ， 头季施用氮素基肥比例为７１ ％ ， 头季稻齐穗后１５ｄ 左右每６６７ｍ２ 施２５ｋｇ 尿素作促芽肥， 头季稻收割后３ ～５ｄ 每６６７ｍ２ 施２ｋｇ 尿素作促苗肥， 留桩高度为４６ｃｍ 。其中， 芽肥施用量、留桩高度和抛栽密度， 是影响产量的主要因素
In order to find out the plan of high yield and stable yield of ratooning rice through throwing seedlings, the quadratic regression model was used to design and optimize the combination experiment. The results showed that the comprehensive cultivation technique of throwing rice was: throwing 16000 piles per 667m2 2 plants). The proportion of nitrogen-based fertilizer was 71% in the first season, 25kg of urea was applied at 667m2 for the first 15 days after heading, and 2kg of urea was applied on 667m2 of the first-season rice for promoting seedling fertilizer , Leaving the pile height of 46cm. Among them, the bud fertilizer application, leaving pile height and cast planting density, is the main factor affecting the yield