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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (15): 106-111.doi: 10.11924/j.issn.1000-6850.2012-0507

所属专题： 小麦

• 农学 农业基础科学 • 上一篇    下一篇

旱地小麦休闲期不同耕作措施对土壤水分蓄纳利用与产量形成的影响

贺立恒 高志强 孙敏 李青   

  • 收稿日期:2012-02-21 修回日期:2012-03-05 出版日期:2012-05-25 发布日期:2012-05-25
  • 基金资助:

    现代农业产业技术体系专项经费(2011);山西省留学人员科技活动项目择优资助经费项目;山西省回国留学人员科研项目;山西农业大学引进人才科研启动项目

Effect of Ploughing in Leisure Period on Yield and Soil Water Use Efficiency of Winter Wheat in Dryland

  • Received:2012-02-21 Revised:2012-03-05 Online:2012-05-25 Published:2012-05-25

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摘要：

为了提高旱地冬小麦的水分利用率，采用大田试验，研究休闲期不同耕作措施对旱地冬小麦土壤含水量、产量及水分利用率的影响。结果表明，休闲期不同耕作措施可明显提高播前与越冬期0~100 cm、100~200 cm土层含水量，有利于旱地冬小麦出苗与越冬；同时，休闲期不同耕作措施可明显提高后续各生育期土壤含水量，提高穗数、穗粒数，显著提高籽粒产量与水分利用率，各处理下数据显示休闲期深耕处理效果优于深松与免耕处理。总之，休闲期不同耕作措施均有利于旱地小麦土壤水分、产量和水分利用率的提高，是实现旱地小麦增产的有效措施。

关键词: 可溶性糖, 可溶性糖

Abstract:

In order to improve water use efficiency of winter wheat in dryland, Field test was conducted to study the effect of different ploughing in leisure period on soil water content, yield and water use efficiency (WUE) of winter wheat in dryland. The results showed that, soil water content was significantly increased at depth of 0-100 cm, 100-200cm especially at winter stage and before sowing according different ploughing in leisure period, obviously it was benefit for germination and winter-overing for winter wheat in dryland. Meanwhile, different ploughing in leisure period could improve soil water content, ear number, increase ear number and grain number per ear, significant increased yield and WUE in following growth stage, and the results showed that, the effect of increase was much better under deep plowing than deep tillage and notillage (CK). In a word, different ploughing in leisure period could improve soil water content, increase yield, and improve WUE, it was a better effected way to achieve yield increase of winter wheat in dryland.

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