垄膜沟种技术对辽西旱地春玉米土壤水分及产量的影响  

The Influence of Technique of Ridge Film Mulching and Furrow Seeding on Soil Water and Yield of Spring Corn in Western Liaoning

作　　者：李爽[1] 孙占祥[2] 张莹[1] 杨宁[2] 冯良山[2] 刘洋[2] 白伟[1] 

机构地区：[1]沈阳农业大学,沈阳110161 [2]辽宁省农业科学院,沈阳110161

出　　处：《玉米科学》2009年第5期121-123,129,共4页Journal of Maize Sciences

基　　金："十一五"国家科技支撑计划重点项目(2006BAD29B06);农业部"948"项目(2006-G52A-Q01);辽宁省科技厅项目(2008212002)

摘　　要：在辽西风沙半干旱雨养农业区采用垄膜沟种技术,可有效提高自然降水利用率,达到保水增墒、减少无效蒸发,提高玉米产量的作用。试验结果表明,垄膜沟种技术种植的春玉米全生育期内在同等降雨条件下土壤含水量比常规地膜覆盖增加0.75个百分点,比裸地增加3.32个百分点。春玉米单株总叶面积比常规地膜覆盖和裸地种植分别增加了881.70cm2和714.39cm2,为春玉米增产提供了物质保障。垄膜沟种技术可提高玉米经济性状指标,增加产量,试验单产达11847.39kg/hm2,较裸地种植增加了2681.62kg/hm2,增产29.14%;比常规地膜覆盖种植增加了484.37kg/hm2,增产4.25%。Using the technique of ridge film mulching and furrow seeding in western Liaoning can improve the utilization ratio of natural precipitation to prohibit soil water evaporation, conserver soil water and increase yield of corn. Experiment showed that the total leaf area per plant increased by 881.70 cm^2 and 714.39 cm^2, and soil water content of spring corn increased by 0.75 and 3.32 percentage points using technique of ridge film mulching and furrow seeding, which provided material guarantee for the yield increase of spring corn, than plastic film mulching and bare land. Technique of ridge film mulching and furrow seeding could improve the indexes of economic character, yield up to 11 847.39 kg/ha, 2 681.62 kg/ha more than a bare land increased by 29.14% and 484.37 kg/ha more than conventional plastic film mulching cultivation increased by 4.25%.

关 键 词：春玉米 垄膜沟种 土壤水分 旱地农业 

分 类 号：S513.04[农业科学—作物学]