| 半干旱区中耕深松对土壤水分和作物产量的影响 |
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| 引用本文： | 肖继兵,孙占祥,杨久廷,张玉龙,郑家明,刘洋.半干旱区中耕深松对土壤水分和作物产量的影响[J].土壤通报,2011(3). |
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| 作者姓名： | 肖继兵 孙占祥 杨久廷 张玉龙 郑家明 刘洋 |
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| 作者单位： | 辽宁省水土保持研究所;辽宁省农业科学院;沈阳农业大学; |
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| 基金项目： | 十一五国家科技支撑计划“东北风沙半干旱区林粮结合技术集成与示范(2006BAD29B06)”资助 |
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| 摘 要： | 为了提高半干旱区旱作农田对天然降雨的利用率,打破犁底层,增加雨水入渗,达到蓄水保墒、提高作物产量的目的,2008~2009年在朝阳半干旱区对旱地玉米和大豆进行中耕深松试验。研究表明,深松能打破犁底层,降低表层土壤容重和根系穿透阻力,提高土壤孔隙度。与对照相比,深松可以增加土壤含水量并可以提高水分入渗深度,深松区土壤水分入渗深度可达80 cm左右,未深松区土壤水分入渗深度只有40 cm左右。深松使玉米根干重增加幅度为3.6%~6.1%,使大豆根干重增加15.1%,并使大豆主根系入土深度增加3 cm,玉米增产幅度1.9%~11.3%,在干旱年份增产效果明显,大豆增产19.47%。
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| 关 键 词： | 半干旱区 深松 土壤水分 玉米 大豆 产量 |
Effect of Subsoiling on Soil Water and Crop Yield in Semi-arid Area |
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| XIAO Ji-bing ,SUN Zhan-xiang ,Yang Jiu-ting ,ZHANG Yu-long ,ZHENG Jia-ming ,LIU Yang.Effect of Subsoiling on Soil Water and Crop Yield in Semi-arid Area[J].Chinese Journal of Soil Science,2011(3). |
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| Authors: | XIAO Ji-bing SUN Zhan-xiang Yang Jiu-ting ZHANG Yu-long ZHENG Jia-ming LIU Yang |
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| Institution: | XIAO Ji-bing 1,SUN Zhan-xiang 2,Yang Jiu-ting 1,ZHANG Yu-long 3,ZHENG Jia-ming 2,LIU Yang 2(1.Institute of Water and Soil Conservation in Liaoning,Chaoyang 122000,China,2.Liaoning Province Academy of Agricultural Science,Shenyang 110866,3.Shenyang Agricultural College,China) |
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| Abstract: | In order to improve the utilization of natural rainfall in the dry farmland in the semi-arid area,break up plough pan,increase rainfall infiltration,achieve the purpose of water conservation and enhance the crop production,the subsoiling experiment on dryland corn and soybean made in the semi-arid area in Chaoyang in 2008-2009.The study shows that subsoiling can break up plough pan,decrease soil bulk density of surface layer and penetration resistence of the root system,increase soil porosity.Subsoiling can... |
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| Keywords: | Semi-arid area Subsoiling Soil water Maize Soybean Yield |
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