中国稻米

• 品种与技术 • 上一篇    下一篇

冬水田杂交中稻直播高产配套技术

  1. 1四川省农业科学院水稻高粱研究所/国家水稻改良中心四川泸州分中心,四川 泸州646000;2农业部西南水稻生物学与遗传育种重点实验室,四川 德阳618000;3四川省南充市农业科学院,四川 南充 637000
  • 出版日期:2017-09-20 发布日期:2017-09-20
  • 基金资助:
    国家水稻产业体系(CARS-01-29);四川省财政创新能力提升工程专项(2016GYSH-031);国家粮食科技丰产工程(2013BAD07B13-05)

High Yield Direct Seeding Techniques for Mid-season Hybrid Rice in Winter Water-logged Field

  • Online:2017-09-20 Published:2017-09-20

摘要: 以杂交中稻组合川香优9838和K优17为材料,对冬水田区水稻直播技术进行了研究,形成了配套技术:每hm2施纯氮120~150 kg(比大面积手插秧减少10%);川南3月10-15日播种,川北4月10-15日播种,比当地大面积地膜湿润育秧推迟7~10 d,每hm2用种量12~15 kg;播种后第2 d喷施直播稻专用除草剂,或3.5叶左右根据苗高情况灌水3 cm左右,用普通水稻田除草剂进行化学除草1次。

关键词: 冬水田, 杂交中稻, 直播

Abstract: The direct seeding techniques of hybrid mid-season rice in winter water-logged field were studied, using hybrid mid-season rice combination Chuanxiangyou 9838 and K you 17 as materials. The direct seeding techniques of hybrid mid-season rice in winter water-logged field were as follows: the amount of nitrogen fertilizer is 120~150 kg/hm2; sowing date in Southern Sichuan is March 10th to 15th and in Northerm Sichuan is April 10th to 15th, delayed for 7~10 days than the local large area film moist seedling, the sowing rate is 12~15 kg/hm2; spraying special herbicide at second days after sowing, or weeding one times with ordinary chemical herbicide at 3.5 leaves in 3 cm layer of paddy field.

Key words: winter water-logged field, hybrid mid-season rice, direct seeding

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