干旱地区农业研究2017，Vol.35Issue(3)：285-291,7.DOI:10.7606/j.issn.1000-7601.2017.03.44
深松铲铲尖对土壤扰动过程及效果的试验与分析
Experiment and analysis of the subsoiler fine shape to the soil disturbance process and effect
摘要
Abstract
Tine shape is one of the key components of subsoiler,and it has an important impact on soil disturbance.Based on the influence mechanism to analyze the tine shape to soil disturbance process,taking the chisel shovel,arrow shovel and wing shovel as the objects,using evaluation indexes such as soil breaking rate,soil bulkiness and loose degree,soil disturbance coefficient and soil surface roughness,and the high-speed photographic technique further researched the influence of different shovel shapes on the soil disturbance process and effect.The results were indicated:(1) The shovel shape would produced an important impact to the soil disturbance process,the furrow surface width and furrow bottom width were the highest when operated by the wing shovel,the arrow shovel was the second,and the chisel shovel was the minimun.(2) With increasing contact area of subsoiler shovel to soil and second contact probability between soil blocks,the soil crushing effect was continuously improved.Aftersubsoiling by using the chisel shovel,arrow shovel and wing shovel,soil breaking rate in 10 cm topsoil was 89.29％,90.87％ and 94.75％ respectively,and soil breaking rate in whole topsoil was 85.09％,92.23％ and 96.13％ separately.(3) The shovel shape was the important factor to influence soil loosening degree and soil surface roughness.The soil loose effect by chisel shovel was less than arrow shovel and wing shovel,but its soil surface roughness was better than arrow shovel and wing shovel.Comprehensively considered the factors as tillage quality,drag reduction effect,material and so on,the contact area of shovel tine to soil should be rationally confirmed,adaptable research of shovel to soil types should be enhanced,and the research of reasonable layout and its structure parameters of wing shovel should be strengthened.关键词
深松铲/铲尖/土壤扰动/高速摄影/试验研究Key words
subsoiler/subsoiler tine shape/soil disturbance/high-speed photography/experimental research分类
农业科技引用本文复制引用
杭程光,黄玉祥,高喜杰,李伟,朱瑞祥..深松铲铲尖对土壤扰动过程及效果的试验与分析[J].干旱地区农业研究,2017,35(3):285-291,7.基金项目
陕西省科技攻关课题(2013K02-11) （2013K02-11）
杨凌示范区科技计划项目(2014NY-29) （2014NY-29）
2015年西北农林科技大学重点项目(Z101021501) （Z101021501）
