摘要
为了探索旱地深松的影响范围、土壤体积密度的变化规律并确定深松周期,进行了可调翼深松铲正交试验和深松后效试验。结果表明,悬挂位置、翼板位置、入土角对松土深度有显著影响,深松影响的宽度范围为深度的2.2倍,深松后效果至少可以保持2a。分析了深松机组的入土性能,提出了保持麦地松后地表硬度一致的方法。
In order to study the influenced range of subsoiling,varying regularity of soil volume density after subsoiling and suitable sub-soiling cycle,orthogonal ex- periments of subsoiler with adjustable wine and experiments of remained efffect of subsoiling are carried out.The results indicate that the mounting place,wineboard location and penetration angle have outstanding influence,the influenced width is 2.2 times as subsoiling depth.The remained effect can last 2 years at least.The penetration performance of subsoiler is also analyzed.The method that can make an uniform hardness in surface soil(0-10 cm)is nut forward.
基金
国家"八五"科技攻关项目
