摘要
对两种农业机械采用模拟的方法进行了压实试验研究,测定了土壤容重、含水量和坚实度等土壤参数,并与压前的土壤参数进行了比较。结果表明：轮式拖拉机比履带式对土壤参数的影响要显著些;随土壤深度的增加,土壤参数的变化量在减小;一次轮式拖拉机作业后使干容重增加了11.1%,5~10cm处含水量最大减小了16.8%,0~6cm处坚实度增加为原来的1.4倍,5次作业后土壤含水量最多减少了23.1%。
Two kinds of agricultural machinery by simulation methods of compaction tests to determine the soil bulk density,water content and hardness,and with the pressure before the soil parameters were compared.The results showed that： crawler tractors than the influence of soil parameters to be significantly more,increased with soil depth in reducing the amount of parameter changes;a wheeled tractor operation and the dry bulk density after an increase of 11.1%,at 5~10cm depths the maximum water content of less 16.8% smaller,at 0~6cm depths,hardness increased to 1.4 times,5 times after operation decreased soil moisture content up to 23.1%.
出处
《中国农机化》
北大核心
2011年第4期100-103,共4页
Chinese Agricul Tural Mechanization
关键词
农业机械
土壤压实
土壤参数
模拟试验
agricultural machinery
soil compaction
soil parameters
simulation methods
