不同覆膜种植方式对大豆产量及土壤理化性质的影响  

Effects of Different Film Mulching Planting on Soybean Yields and Physical and Chemical Properties of Soil

作　　者：盖琼辉[1] 张述强[1] 张义凡[1] 郑秀堂 

机构地区：[1]陇东学院农林科技学院,甘肃庆阳745000 [2]庆阳市国营合水林业总场平定川林场,甘肃庆阳745000

出　　处：《陇东学院学报》2017年第3期52-55,共4页Journal of Longdong University

摘　　要：在陇东半干旱区设置全膜双垄沟播、全膜平铺及露地栽培3种覆膜种植方式,研究了覆膜对大豆产量及土壤理化性质的影响。结果表明,全膜双垄沟播种植方式具有增温、保水蓄水、疏松土壤等作用,可提高土壤含水量4.79%,降低土壤容重0.49g/cm^3,增大土壤孔隙度7.42%。分析比较产量,全膜双垄沟播种植增产显著,可提高出苗率15.66%、产量25.95%。In order to study the effects of different film mulching planting on soybean yields and physical and chemical properties of the soil in the half arid areas of Longdong,this experiment adopts three kinds of cultivation patterns including completely mulched alternating narrow and wide ridges with furrow plant- ing, alternating mulched with plastic film and bare plots with no ridges and flat plot with ridges. The re- sults indicates that completely mulched alternating narrow and wide ridges with furrow planting can im- prove the soil moisture content by 4.79%, reduce soil bulk density by 0.49 g/cm3, increase soil porosity by 7.42%, and with a warming,water storage,loose soil, and so on. Based on our analysis and compari- son on the output, we fine that the completely mulched alternating narrow and wide ridges with furrow planting can improve the rate of emergence 15.66% and the yield of 25.95%.

关 键 词：大豆 覆膜方式 土壤理化性状 出苗率 产量 

分 类 号：S516[农业科学—作物学]