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中国农学通报 ›› 2017, Vol. 33 ›› Issue (10): 12-18.doi: 10.11924/j.issn.1000-6850.casb16090084

所属专题: 小麦 水稻

• 农学 农业基础科学 • 上一篇    下一篇

不同生育时期浇水对稻茬晚播小麦生长及产量影响的研究

何井瑞,韩必荣,张明,张洪树,陈雪梅,刘海红,刘红,杜小凤,王伟中   

  1. 宿迁市农业技术综合服务中心,宿迁市农业技术综合服务中心,宿迁市农业技术综合服务中心,宿迁市农业技术综合服务中心,宿迁市农业技术综合服务中心,宿迁市农业技术综合服务中心,宿迁市农业技术综合服务中心 宿迁223800,淮安市农业科学研究院,淮安市农业科学研究院
  • 收稿日期:2016-09-19 修回日期:2017-03-21 接受日期:2016-11-25 出版日期:2017-04-11 发布日期:2017-04-11
  • 通讯作者: 王伟中
  • 基金资助:
    江苏省农业三新工程“现代农业(稻麦)科技综合示范推广”项目(SXGC[2015]269);宿迁市科技支撑计划项目“宿迁市稻麦丰产节水节肥技 术集成研究与示范”(L201310);国家现代农业小麦产业技术体系项目苏中综合试验站(小麦方面)(CARS-3-2-13);江苏省农业科技自主创新资金项 目“晚播稻茬麦齐壮苗及肥料高效利用栽培技术研究”[CX(14)2008];江苏省“333 工程”科研项目资助计划“稻茬晚播小麦高产配套栽培技术研究与 集成”(2014 年度);淮安市重点研发计划“基于秸秆还田小麦氮肥减施增效技术创新与示范”(HAN2015032);江苏省第五期“333 工程”科研项目资助 计划“淮北地区稻茬晚播麦适宜品种筛选及配套栽培技术研究与集成”(2016 年度)。

Effects of Irrigation at Different Growth Stages on Growth and Yield of Late-sown Wheat under Rice Stubble

  • Received:2016-09-19 Revised:2017-03-21 Accepted:2016-11-25 Online:2017-04-11 Published:2017-04-11

摘要: 探索不同生育时期浇水对稻茬晚播小麦生长和产量的影响,为淮北稻茬晚播小麦浇水提供科学依据。在大田条件下,以‘淮麦33’为材料,采取人工浇水的方法,研究在越冬、返青、拔节和灌浆初期浇水对小麦生长发育及产量的影响。结果表明:越冬初期、返青初期浇水对个体和群体生长的促进作用好于拔节初期和灌浆初期,随着浇水次数增加小麦的生长明显增强。在返青初期和拔节初期浇水能促进小麦穗分化,增加穗粒数,A2B2B3处理穗粒数比CK多3.76粒/穗。单产并不随着浇水次数增加而提高,越冬初期和拔节初期两次浇水单产最高,比对照增15.85%。因此,对于稻茬晚播麦宜在返青初期和拔节初期浇水为宜,既能促进小麦个体和群体生长,保证有效穗数,又能提高每穗粒数,提高产量。

关键词: 机插稻, 机插稻, 生化试剂, 生育期, 株型, 倒伏

Abstract: The aims are to explore the effect of irrigation at different growth stages on growth and yield of latesown wheat under rice stubble, and provide a scientific basis for irrigation of late-sown wheat under rice stubble. In field conditions, taking‘huaimai 33’as the experimental material, the authors studied the effects of irrigation at the stages of overwintering, pre-returning green, pre-jointing and early filling on wheat growth and yield by using artificial irrigation. The results showed that individual and population growth of wheat irrigated at early winter stage and pre-returning green stage were better than that of pre-jointing stage and early filling stage. And, the growth of wheat was significantly enhanced with the increase s of watering times. Spike differentiation of wheat irrigated at pre-returning green stage and pre-jointing stage could be advanced and the grain number could be increased. It showed that the A2B2B3 treatment had 3.76 more grains per spike than that of CK. The yield did not increase with the increase of the watering times. The maximum yield was obtained by irrigated twice at early winter stage and pre- jointing stages, the yield increased by 15.85% compared with the CK. Thus, the irrigation at pre-returning green stage and pre-jointing stage might be more suitable for late-sown wheat under rice stubble because it not only enhanced the growth of individual and population, ensure the effective ear number, but also improved the grain numbers per spike to increase the yield.

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