中国稻米

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促芽肥对再生稻准两优608产量和主要品质性状的影响

  1. 1安徽省农业科学院水稻研究所,合肥 230031;2安徽省安庆市怀宁县马庙镇农业技术推广站,安徽 怀宁 246120;3安徽省安庆市种植业管理局,安徽 安庆 246120
  • 出版日期:2018-05-20 发布日期:2018-05-20
  • 通讯作者: 吴文革
  • 基金资助:

    国家重点研发计划项目(2016YFD0300503);国家科技支撑计划项目(2013BAD07B08);公益性行业(农业)专项(201303102);安徽省农业科学院人才发展专项资金项目(17F0102);安徽省水稻遗传育种重点实验室项目(2016SDSYS003)

Effects of Buds Promoting Fertilizer on Yield and Grain Quality of Ratoon Rice

  • Online:2018-05-20 Published:2018-05-20

摘要:

优化促芽肥施用技术对于完善再生稻栽培管理技术具有重要意义。本研究以准两优608为材料,通过设置3个施肥时期和3个施肥水平处理,分析促芽肥对“一种两收”再生季水稻产量形成和主要品质性状的影响。结果表明,促芽肥施用时期和施肥水平极显著影响再生稻产量形成,随着促芽肥施用时期的推迟和肥料用量的减少,再生稻产量呈降低趋势。头季稻收割前15 d施用纯N 69.0 kg/hm2的处理再生稻产量最高。该施肥条件下,再生稻碾磨品质较好,垩白粒率低,蛋白质含量高,淀粉含量较低,综合米质较优。生产上,于头季稻收割前15 d施用纯N 69 kg/hm2可以兼顾再生稻高产与优质的目标。

关键词: 再生稻, 氮肥, 产量, 稻米品质

Abstract:

To clarify the optimum time and application rate of nitrogen of buds promoting fertilizer, the field experiment was carried out using the hybrid rice combinations Zhunliangyou 608 as material. The results indicated that the yield of ratoon rice was significantly affected by application time and application rate of buds promoting fertilizer. The yield of ratoon rice showed a decreased trend with the delay of application time and decline of application rate. When the nitrogen application rate was 69.0 kg/hm2 at 15 d before the main crop harvested, it could get the higher yield and good grain quality.

Key words: ratoon rice, nitrogen, yield, grain quality

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