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  • ISSN 1000-694X
  • 双月刊 创刊于1981年
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生物与土壤

根系分隔对小麦玉米套作田土壤水分状况的影响

  • 孔学夫 ,
  • 冯福学 ,
  • 柴强
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  • 甘肃农业大学 农学院, 甘肃 兰州 730070
孔学夫(1964-),男,甘肃敦煌人,博士研究生,主要进行多熟种植研究。Email:kongxf@gsau.edu.cn

收稿日期: 2013-03-05

  修回日期: 2013-06-16

  网络出版日期: 2014-05-20

基金资助

国家自然科学基金项目(31360323);甘肃省杰出青年基金项目(1111RJDA006);国家科技支撑计划项目(2012BAD14B10)资助

The Effect of Different Root Partition Patterns on Soil Water Condition of Wheat-Corn Intercropping System

  • Kong Xuefu ,
  • Feng Fuxue ,
  • Chai Qiang
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  • College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China

Received date: 2013-03-05

  Revised date: 2013-06-16

  Online published: 2014-05-20

摘要

2009年3-10月通过田间试验研究了小麦玉米套作田塑料薄膜隔根(PW/C)、尼龙网隔根(NW/C)、不隔根(W/C)及单作玉米(C)和单作小麦(W)的土壤水分状况。结果表明:以单作小麦、单作玉米加权平均为对照,W/C、NW/C和PW/C处理分别显著提高经济产量33.60 %、26.93%和24.69%,增大耗水量-0.2%、1.02%和6.69%,显著提高水分利用效率34.93%、26.67%和17.80%。W/C处理较NW/C和PW/C处理分别提高经济产量5.25%和7.14%,降低耗水量1.21%和6.64%,提高水分利用效率6.52%和14.54%。小麦玉米共生期,土壤水分在套作群体组分间能够优化分配,根系分隔显著降低了作物群体产量及对土壤水分的利用效率。

本文引用格式

孔学夫 , 冯福学 , 柴强 . 根系分隔对小麦玉米套作田土壤水分状况的影响[J]. 中国沙漠, 2014 , 34(3) : 780 -785 . DOI: 10.7522/j.issn.1000-694X.2013.00379

Abstract

A field experiment was conducted to investigate the effect of different root partition patterns (wheat corn intercropping that root separated by plastic film (PW/C), wheat corn intercropping that root separated by nylon (NW/C), Non-root-separation (W/C)) on soil water and water use efficiency (WUE) of wheat and maize under intercropping system. The results indicate intercropping systems significantly optimized soil water distribution in wheat and maize belt in two crops growing stage, and root partition patterns significantly reduced soil water dynamic and yield. Compared to the weighted average of sole wheat and maize, W/C, NW/C and PW/C treatments significantly improved yield by 33.60%, 26.93% and 24.69%, water consumption by -0.2%,1.02% and 6.69%, water use efficiency(WUE) by 34.93%, 26.67% and 17.80%, respectively. Compared to NW/C and PW/C treatments, W/C treatments significantly improved yield by 5~25% and 7.14%, decreased water consumption by 1.21% and 6.64%, improved WUE by 6.52% and 14.54%, respectively.

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