土壤阻力连续测试系统农田试验研究

Test of a Continuously Measure Soil Resistance System on Farmland

土壤阻力连续测试系统可连续获取农田压实的土壤阻力信息。为研究土壤阻力连续测试系统测试土壤阻力指数(TRI)的适用性,安排了小区对比、大田对比和工作速度影响3个试验,进行了土壤阻力指数TRI值与土壤圆锥指数CI值对比分析。试验结果表明:在表征农田土壤压实程度上,TRI值与CI值具有一致性,即利用土壤阻力连续测量系统测取的TRI数据可以反应农田土壤的压实程度;土壤阻力连续测量系统采样连续、数据信息量大和采样效率高,适合于大面积农田土壤信息快速采集,有利于变耕深耕作技术的开展;在保证系统高效、安全和测试数据稳定的前提下,试验结果显示测试系统较理想的工作速度是1.0m/s。

More and more information of continuously and quickly measure soil resistance are got by a continuously measuresoil resistance system.For the purpose to research the available of the system,three contrast tests were processed in farmland and analyzed the coherence between TRI(soil tillage resistance index) and CI(cone index).The data show it has coherence between TRI and CI when TRI are used to describe the soil compaction,and the system has good specialty of quickly and continuously test and higher efficiency of sampling,and the TRI data are better to use variable rate tillage than CI data,and a better work velocity of the system for system safety and efficiency is opted at 1.0m/s.