农机化研究2018，Vol.40Issue(12)：179-183,5.
自激振动深松对土壤物理特性的影响
Effects of the Excited-vibration Subsoiler on Soil Properties
摘要
Abstract
Hard and thick hardpans resulting from continuous ploughing and rotary tillage and the using of large agricul -tural machinery had bad effects on soil properties and crop yield.In order to break up hardpans,improve soil properties and raise water utilization rate, an experiment of the self-excited subsoiler with three different parameters' springs was conducted,which has a non-vibration treatment as the control group.The results showed that,compared with the non-vibration treatment,the soil penetration resistance of spring Ⅲ treatment decreased by 17.44%and 20.17%at >15-30cm and 0-15cm soil layer respectively, while the soil penetration resistance of spring Ⅱ treatment decreased by 23.24%and10.09%at 0-15cm and >15-30cm soil layer,respectively.As the same time,the soil density of spring Ⅲtreatment decreased by 6.02%at 0-15cm soil layer and 16.29%at >15-30cm soil layer.The soil bulk density of springⅢtreatment decreased by 4.11%and 13.73%, while it of spring Ⅱ treatment decreased by 2.05%and 7.84%at 0-15cm and >15-30cm soil layer.The effect of soil bulk densities at all soil layers were closing between the spring Ⅲand non-vibration treatment,while the effect of soil density at >30-45cm soil layer were closing between the self-excited vi-bration treatments and non-vibration treatment,of which the reason may be the increasing of traction resistance complete-ly compressed the spring at deep soil layer, thus decreased the subsoiling influence.In conclusion, this experiment has important value in extending the self-excited vibration subsoiling management practices and provides an experimental reference of reasonable distribution of tillage resources in Xinjiang.关键词
自激振动深松/土壤耕作/物理特性Key words
self-excited suboiler/soil tillage/properties分类
农业科技引用本文复制引用
屈通,李霞,汤明军,王维新,张思远..自激振动深松对土壤物理特性的影响[J].农机化研究,2018,40(12):179-183,5.基金项目
国家自然科学基金项目(5136505) （5136505）
新疆生产建设兵团科技攻关项目(2016AG016) （2016AG016）
