少耕秸秆覆盖对小麦间作玉米产量和水分利用的影响  

Yield and Water Use Efficiency of Wheat Corn Intercropping with Reduced Tillage and Wheat Straw Mulching

作　　者：樊志龙[1] 陶志强[1] 柴强[1] 于爱忠[1] 黄鹏[1] 

机构地区：[1]甘肃省干旱生境作物学重点实验室/甘肃农业大学农学院,兰州730070

出　　处：《灌溉排水学报》2012年第1期109-112,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(30771264);公益性行业(农业)计划课题(201103001);甘肃省青年创新人才扶持计划

摘　　要：通过田间试验,探讨了小麦少耕留茬条件下,3个供水处理对小麦间作玉米的产量及水分利用效率的影响。结果表明,留茬处理对小麦/玉米间作产量影响不显著,供水处理显著影响间作产量;留茬少耕条件下,中、高供水处理较低供水处理间作产量分别高27.24%、29.90%,未留茬条件下,中、高供水处理较低灌水处理产量分别高29.74%、35.56%。同等供水条件下,高留茬少耕处理较未留茬处理收获后土壤含水量在低、中、高供水水平下分别高4.79%、10.95%、4.28%。留茬处理对间作耗水量影响不显著,但在同种留茬方式下,间作耗水量随供水水平的提高而显著增大,高供水留茬少耕处理较中、低供水处理耗水量分别高7.73%、16.37%,未留茬高供水处理耗水量较中、低供水处理分别高9.10%、16.18%。留茬处理对间作作物水分利用效率(WUE)无显著影响,相同留茬不同供水处理的WUE在中、高供水水平之间无显著差异,而中、高供水高留茬少耕处理WUE较低供水处理分别高17.80%、11.63%,未留茬处理时中、高供水处理WUE分别较低供水间作高21.83%、16.68%。In order to investigate the effects of yield and water use efficiency（WUE） of wheat-maize intercropping which with wheat-stubble mulching and under three water supply levels,a field experiment was carried out.Results indicated that the effects of wheat-stubble mulching to the yields of intercropping were not significant.Water supply level significantly affected the yields of intercropping.The yields of intercropping with wheat-stubble mulching under middle and high water supply level were respectively increased by 27.24%,29.90% than it under low water supply level,which without wheat-stubble mulching under middle and high water supply level were respectively increased by 29.74%,35.56% than it under low water supply.In one water supply level and different mulching pattern,the soil water storage after harvest of intercropping with wheat-stubble mulching were significantly increased by 4.79%,10.95%,4.28% respectively than it without wheat-stubble mulching under three water supply level.The wheat-stubble mulching pattern didn＇t significantly affect the water use efficiency（WUE）.The WUE of intercropping under middle and high water supply level were significantly increased by 17.80%,11.63% respectively than low water supply level,and it without wheat-stubble mulching under middle and high water supply level were significantly increased by 21.83%,16.68% respectively than low water supply level.

关 键 词：秸秆覆盖 产量 耗水量 水分利用效率 

分 类 号：S512.1[农业科学—作物学] S513