心土不同间隔混拌对白浆土物理性状及大豆产量的影响  

Effect of Different Subsoil Mixing Interval on Planosol Physical Characters and Yield of Soybean

作　　者：朱宝国[1] 贾会彬[1] 于忠和[1] 张春峰[1] 孟庆英[1] 王囡囡[1] 马晓明[2] 高雪冬[1] 

机构地区：[1]黑龙江省农业科学院佳木斯分院,黑龙江佳木斯154007 [2]北大荒农业股份有限公司江滨分公司农业研发中心,黑龙江江滨154243

出　　处：《农学学报》2012年第12期22-25,36,共5页Journal of Agriculture

基　　金：国家科技支撑项目"三江平原白浆土农田土壤改良及水土调控技术集成与示范"(2009BADB3B07);国家科技支撑项目"东北平原瘠薄盐碱中低产田改良技术集成示范"(2012BAD05B01);国家大豆产业技术体系项目"东北中低产田大豆养分管理技术研究"(CARS-04-09B)

摘　　要：为了探讨机械作业改良白浆土,以常规机械作业为对照,设6个处理,研究心土不同间隔混拌对白浆土物理性质及大豆产量的影响。结果表明:与对照相比,改土2年后不同处理20～60cm混拌层都能提高土壤含水量,增幅1.02%～4.90%;降低土壤容重,降幅4.93%～10.56%;降低土壤硬度,降幅3.05%～28.15%;以单向条沟改良(T2)效果最好。6个处理中,隔垄交错条沟改良(T5)和单向条沟改良(T2)大豆产量最好,分别达到1991.92kg/hm2和1969.57kg/hm2,比常规机械作业提高7.92%和6.71%,差异达到显著水平。In order to study the machinery working improved planosol,six treatments was established compared with conventional machinery working,the effects of different subsoil mixing interval on planosol physical characters and yield of soybean were investigated.Compared with conventional mechanical operation,the results indicated that two years later after improve the soil 20-60 cm subsoil mixing layer could increase the soil water content,decrease the soil bulk density and decrease the soil hardness of different treatments.In addition,the increased range of soil water content was 1.02%-4.90%,the decreasing range of soil bulk density was 4.93%-10.56% and the decreasing range of soil hardness was 3.05%-28.15%,respectively.The treatments of T2 effect was the best.Among six treatments,the higher yield were the treatments of T5 and T2 and can be reached 1991.92 kg/hm2 and 1969.57 kg/hm2.Compared with conventional mechanical operation,the yield increased by 7.92% and 6.71%,the difference reached significant levels.

关 键 词：心土间隔混拌 白浆土 物理性状 大豆 产量 

分 类 号：S156[农业科学—土壤学]