中国水稻科学

中国水稻科学 ›› 2013, Vol. 27 ›› Issue (6): 610-616.DOI: 10.3969/j.issn.1001-7216.2013.06.007

• 研究报告 • 上一篇    下一篇

水稻免耕机插质量、生长特性及产量形成

陈惠哲,向镜,徐一成,林贤青,张玉屏,朱德峰*   

  1. 中国水稻研究所 水稻生物学国家重点实验室， 杭州 310006；
  • 收稿日期:2013-01-25 修回日期:2013-08-15 出版日期:2013-11-10 发布日期:2013-11-10
  • 通讯作者: 朱德峰*
  • 基金资助:

    国家科技支撑计划资助项目(2012BAD07B02)；国家农业科技成果转化资金资助项目(2011GB23260004)；科技部科研院所技术开发研究专项(2013EG134237)；浙江三农六方科技协作计划项目(SN201206)。

Effect of NoTillage on the Quality of Mechanical Transplanting, Growth and Grain Yield of Rice

CHEN Huizhe, XIANG Jing, XU Yicheng, LIN Xianqing, ZHANG Yuping, ZHU Defeng*   

  1. State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China;
  • Received:2013-01-25 Revised:2013-08-15 Online:2013-11-10 Published:2013-11-10
  • Contact: ZHU Defeng*

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摘要： 以中浙优1号、甬优9号和扬两优6号为试验材料，以翻耕为对照，研究了免耕条件下水稻的机插质量、群体生长及产量形成。结果表明，随着泡田时间延长，土壤容重呈下降趋势，免耕机插稻田泡田15 d后，0~25 cm表层的土壤容重从1.0~1.1 g/cm3下降到0.8~0.9 g/cm3；免耕机插秧苗种植深度比对照浅40%左右，但翻秧率、漂秧率有所上升；免耕机插导致水稻根系总量降低，且根系多集中于表层(0~5 cm)，中浙优1号和甬优9号免耕机插的表层（0~5 cm）根系比例分别达7718%和7708%，均高于对照；免耕机插产量比对照略有增产，但差异不显著，主要原因是免耕机插增加了单位面积有效穗数，但每穗粒数、结实率和千粒重均略有下降。

关键词: 水稻, 免耕, 机插秧, 生长特性, 产量

Abstract: Quality of mechanical transplanting, rice growth and grain yield was determined under notillage and mechanical transplanting in a field experiment with Zhongzheyou 1, Yongyou 9 and Yangliangyou 6 as material. The results showed that soil bulk density decreased from 1.0-1.1 g/cm3to 0.8-0.9 g/cm3 after 15 days soaking in 0-25 cm soil layer.  The seedling planting depth significantly decreased   by 40% under notillage, but the lodging and floating seedling rate increased. The total root biomass decreased under notillage, but the upper root percentage significantly increased compared with conventional tillage. For Zhongzheyou 1 and Yongyou 9,  the percentages were 7718% and 77.08%, respectively. Grain yield under notillage declined compared with conventional tillage, which was attributed to higher panicle number per square meter, lower grain number per panicle, seed setting rate and 1000grain weight.

Key words: rice, notillage, mechanical transplanting, growth characteristics, yield

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