大豆科学2018，Vol.37Issue(2)：251-257,7.DOI:10.11861/j.issn.1000-9841.2018.02.0251
表土处理对大豆田土壤团聚体特征及产量的影响
Effect of Topsoil Treatment on Characteristics of Soil Aggregates of Soybean Field and Soybean Yield
摘要
Abstract
In order to demonstrate the effect of conventional tillage system with topsoil treatment on the soil physical properties and soybean yield,adopting the method of regional contrast,setting two treatments (T1 represents local conventional tillage measures,T2 represents conventional tillage measures + topsoil soil crushing treatment) to analyze the influence on soil temperature and humidity,the bulk density,porosity,water stability,the aggregate in 0-30 cm soil depth and soybean yield.The results showed that T2 treatment significantly decreased 0-10 cm soil bulk density with a decline of 6％ to 13.8％,significantly increased the porosity of soil layer between 0-10 cm,with 3.83％ to 8.40％,reduced 5-15 cm soil temperature with a decline of 0.2 to 1.3 centigrade,improve 5-15 cm soil moisture with an increase from 0.1％ to 1.5％,significantly increase the number of large aggregate (R ＞0.25 mm) by 9.0％ to 20.3％.The mean weight diameter(MWD) and the geometric mean diameter(GMD) of soil water stability agglomeration increased by 4.25％ to 6.58％ and 28.4％ to 30.3％ respectively,while soybean yield increased by 6.24％.The results showed that topsoil crushing treatment could reduce topsoil bulk density,increase topsoil porosity,increase soil bulk aggregate number,increase soil water stability and provide a better soil environment for crop growth.关键词
大豆/表土处理/水稳性团聚体/产量Key words
Soybean/Topsoil treatment/Water stability aggregate/Yield分类
农业科技引用本文复制引用
何松榆,刘建生,张明聪,金喜军,胡国华,战英策,赵金星,张玉先..表土处理对大豆田土壤团聚体特征及产量的影响[J].大豆科学,2018,37(2):251-257,7.基金项目
黑龙江省自然基金面上项目(C2016042) （C2016042）
中国博士后科学基金(2016M591568) （2016M591568）
国家科技支撑计划(2014BAD11B01-02) （2014BAD11B01-02）
大庆市指导性科技计划项目(zd-2016-107) （zd-2016-107）
黑龙江八一农垦大学博士科研启动基金(XYB2014-04) （XYB2014-04）
国家现代农业产业技术体系(CARS-04-01A). （CARS-04-01A）
