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

doi:10.3969/j.issn.1006-8082.2017.05.026

Abstract

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

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

CLC Number:

S511.048

徐富贤1，2,熊洪1，2,谢树果3,竭润生3,张林1，2,朱永川1，2,郭晓艺1，2,刘茂1，2,周兴兵1，2,蒋鹏1，2. 冬水田杂交中稻直播高产配套技术[J]. 中国稻米, DOI: 10.3969/j.issn.1006-8082.2017.05.026 .

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

冬水田杂交中稻直播高产配套技术

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