stiff soil

The soil density and humidity before and after the bed-irrigation sowing changed knowing from analyzing the data of them.

通过对施水前后土壤坚实度与土壤含水率测试数据分析,表明用本播种机施水后可改变土壤坚实度与含水率。

The soil density and humidity before and after the bed-irrigating sowing changed knowing from analyzing the Data of them.

通过对施水前后土壤坚实度与土壤含水率测试数据分析,结果显示,施水后改变了土壤坚实度与含水率。

Data from soil compaction test shows that the upper layer of soil is more compact than the lower layer especially above 10cm,and its compaction data is bigger than the data from lower layer.

因此,可以利用土壤坚实度的改变作为评价该地区车辆通过后对沙地影响的指标。