表土处理对大豆田不同耕层土壤温湿度和水稳性团聚体的影响  

Effects of Topsoil Processing on Soil Humiture and Water Stable Aggregate of Different Tilth of Soybean Field

作　　者：张明聪[1] 战英策 杨栗恒 何松榆 胡国华[1] 刘建生 张玉先[1] Zhang Mingcong;Zhan Yingce;Yang Liheng;He Songyu;Hu Guohua;Liu Jiansheng;Zhang Yuxian(College of Agronomy,Heilongjiang Bayi Agricultural University,Daqing 163319;Heshan Farm of Heilongjiang Province)

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319 [2]黑龙江省鹤山农场

出　　处：《黑龙江八一农垦大学学报》2018年第6期8-12,共5页journal of heilongjiang bayi agricultural university

基　　金：黑龙江省自然基金面上项目(C2016042);中国博士后科学基金(2016M591568);大庆市指导性科技计划项目(zd-2016-107);国家科技支撑计划(2014BAD11B01-02);黑龙江八一农垦大学博士科研启动基金(XYB2014-04);国家现代农业产业技术体系(CARS-04-01A)

摘　　要：试验于2016年在黑龙江省农垦总局北安分局建设农场科技园区进行,以"合丰50"为材料,试验采用大区对比法,设置2个处理(T1:当地常规耕作措施;T2:当地常规耕作措施+表土破碎处理),研究2种表土处理方式对0～30 cm土壤温湿度、水稳定性团聚体及产量的影响。结果表明,T2处理增加5 cm和15 cm土壤湿度,增幅0.1%～1.5%,降低5 cm和15 cm土壤温度,降幅0.1～1.1℃,提高0～10 cm和10～20 cm>5 mm、5～2 mm和2～1 mm粒级的团聚体含量和大团聚体(R>0.25 mm)数量,增加0～10 cm和10～20 cm土层土壤水稳定性团聚体的平均质量直径(MWD)与几何平均直径(GMD),增加产量6.25%。结果证明,T2处理促进0～10 cm和10～20 cm土壤团聚体的形成,增加土壤大团聚体数量,增加土壤水稳定性,为作物的生长提供较良好的土壤环境;在20～30 cm土层处理间没有显著差异。The experiment was carried out in Science and Technology Park in Bei-an Branch of Heilongjiang Agricultural Reclamation Administration in2016.The method of regional contrast which contained two treatments was adopted(T1:local conventional tillage measure;T2:local conventional tillage measure+topsoil crushing treatment)to parse the influence of soil temperature and humidity,water stability,the aggregate and yield in0~30cm soil depth.The results showed that T2treatment increased5cm and15cm soil humidity,rate of increase was from0.1%to1.5%;decreased5cm and15cm soil temperature,rate of decline was from0.1℃to1.1℃;increased significantly0~10cm and10~20cm>5mm,5~2mm and2~1mm aggregate content size and large aggregates(R>0.25mm)quantity,increased the average quality of0~10cm and10~20cm soil water stable aggregate diameter(MWD)and geometric mean diameter(GMD).The test results showed that the increase of yield was6.25%,T2treatment promoted the formation of soil aggregates0~10cm and10~20cm,increased the amount of soil aggregates and soil water stability,provided a good soil environment for crop growth.There was no significant difference between the two treatments in20~30cm soil.

关 键 词：表土处理 大豆 土壤水稳性团聚体 产量 

分 类 号：S152[农业科学—土壤学] S565.1[农业科学—农业基础科学]