不同秸秆还田方式对白浆土土壤养分及大豆产量的影响  

Effect of different returning method of straw to soil on soil chemical property and soybean yield

作　　者：王囡囡[1] 朱凤莉[1] 张春峰[1] 贾会彬[1] 朱宝国[1] 孟庆英[1] 宋英博[1] 李于[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

出　　处：《中国土壤与肥料》2016年第1期94-97,共4页Soil and Fertilizer Sciences in China

基　　金：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)

摘　　要：为确定秸秆还田方式对白浆土土壤养分及作物产量的影响,试验设置了普通翻耕的对照处理以及秸秆覆盖还田、心土还田和秸秆焚烧的3种还田方式。3年的试验结果表明：在耕层部分（0~20 cm）,普通翻耕处理区土壤氮素和有机质含量测定值最低,而土壤磷素和钾素含量最高;在白浆层（20~40 cm）,秸秆心土还田处理的土壤碱解氮、全氮、有效磷、全磷和有机质含量最高;在淀积层（40~60 cm）,不同秸秆还田方式,氮素、磷素和有机质含量变化差异较小,钾素表现为土壤下层含量比表层高。两年的数据显示秸秆心土还田处理大豆产量最高,说明秸秆心土还田对土壤地力提升效果明显,利于大豆增产。In order to study the effect of straw returning in albic soil on soil nutrition and crop yield,three different methods of straw returning had been set up,and the local common ground treatment was used as the control（ CK）. The result showed that the content of soil nitrogen and organic matter of CK were the lowest in 0 ~ 20 cm topsoil,but the contents of phosphorus and potassium elements were the highest. The contents of soil nitrogen,phosphorus and organic matter of the straw subsoil returning were the highest in 20 ~ 40 cm of albic soil. In different straw returning methods,the contents of the soil nitrogen,phosphorus and organic matter in 40 ~ 60 cm horizon soil layer differed little,but the content of potassium element in subsoil was higher than that of topsoil. The yield of straw subsoil returning was the best,which showed that straw subsoil returning had good effect on soil fertility,and was helpful for the soybean production.

关 键 词：白浆土 秸秆还田 土壤养分含量 大豆产量 

分 类 号：S158[农业科学—土壤学] S565.1[农业科学—农业基础科学]