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施氮与杂交中稻再生力关系研究 被引量:26

A Study on Relationship between N Application and Ratooning Ability of Medium Hybrid Rice
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摘要 以实验数据资料为基础,论述了施氮对杂交中稻再生稻产量及穗粒结构的影响,分析了促芽肥、壮苗肥与再生力及产量的关系,并对再生稻不同节位的成穗率和穗粒结构进行了比较,为再生稻科学施肥提供了依据。 The study has showed that N application helps to increase the effective panicles,optimize the panicle-and-grain structure and increase filled spiklets and seed setting rate, and a very significant or significant level is reached. It is also shown that the sprouting of ratooning buds mainly depends on the nutritive status of the maternal stem. Dressing for bud development(at 15 days after full heading of the first crop) which is a key measure to obtain high yields of ratooning rice is conducted for the main purpose of increasing the survival rate of the low-position axillary buds but has little bearing on the early sprouting of more dormant buds. Meanwhile, dressing for strengthening sprouts (after harvest of the first crop) which is important for increase of grain yields should net be ignored, too.
出处 《杂交水稻》 CSCD 北大核心 1993年第4期25-28,共4页 Hybrid Rice
基金 国家科委再生稻研究项目
关键词 杂交稻 施肥 氮肥 再生力 medium hybrid rice ratooning rice N application ratooning ability
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  • 1孙晓辉,田彦华,任天举.促芽肥对杂交稻培育再生稻效果研究[J]四川农业科技,1982(03).
  • 2张明鹏,刘振声,邱泉发,陈爱华,林丽宽.N研究再生稻光合产物分配和氮素营养吸收的生理效应[J]中国农业科学,1980(03).
  • 3管康林,陈耀武,肖耀文.再生稻生理研究初报[J]中国农业科学,1979(03).
  • 4陈周前,毛文彬,田辉,泰仲华.氮、磷、钾肥料对再生稻影响的研究[J].安徽农业科学,1989,17(3):32-37. 被引量:15

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