中国稻米 ›› 2015, Vol. 21 ›› Issue (4): 95-98.DOI: 10.3969/j.issn.1006-8082.2015.04.021

• 专论与研究 • 上一篇    下一篇

秸秆与缓释肥配施对水稻产量及氮素吸收利用率的影响

  1. 1上海市农业科学院生态环境保护研究所,上海 201403; 2上海低碳农业工程技术研究中心,上海 201415
  • 出版日期:2015-07-20 发布日期:2015-07-20
  • 通讯作者: 周胜
  • 基金资助:

    上海市农委科技兴农推广项目[沪农科推字(2013)第1-1号];上海市科委基础研究重点项目(12JC1407900)

Effects of Application of Controlled-release Fertilizer Combined with Wheat Straw on Rice Yield and Nitrogen Use Efficiency

  • Online:2015-07-20 Published:2015-07-20

摘要: 以花优14为材料,研究了秸秆与缓释尿素配施对水稻产量及氮素吸收利用率的影响。结果表明,秸秆与缓释肥配施处理较常规施肥处理有效穗数和千粒重明显增加,从而显著提高水稻产量,增幅达到13.4%~17.8%。秸秆与缓释肥配施能明显提高秸秆生物量、籽粒及秸秆含氮量,将氮素吸收利用率从28.7%~40.2%(常规施肥处理)提高到71.6%~77.6%。缓释肥作基肥一次性施入,可有效节省人力成本。秸秆与缓释肥配施能增加水稻产量,提高氮素吸收利用率,减少人力成本,具有很大的应用前景。

关键词: 水稻, 秸秆还田, 缓释肥料, 氮素吸收利用率, 产量

Abstract: The effects of application of controlled-release fertilizer combined with wheat straw on rice yield and nitrogen use efficiency were studied in this paper ,with Huayou 14(Oryza sativa L.) as material. The results showed that application of controlled-release fertilizer combined with wheat straw clearly increased rice yield by 13.4%~17.8%, mainly due to the increases of effective panicles and 1000-grain weight compared to common chemical fertilizer application. Application of controlled-release fertilizer combined with wheat straw could also enhance rice straw biomass, nitrogen content in grain and straw, which led to a significantly higher nitrogen use efficiency(71.6%~77.6%) compared to common chemical fertilizer application(28.7%~40.2%). Controlled-release fertilizer was applied only once, and as base fertilizer, would effectively save labor costs. Application of controlled-release fertilizer combined with wheat straw increased rice yield, enhanced nitrogen use efficiency, saved labor costs, may have a promising future.

Key words: rice, straw-returning, controlled-release fertilizer, nitrogen use efficiency, yield

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