耕作质量的好坏,直接影响到作物的出苗生长及发育。在质地较粘重的土壤上,如果耕作的不及时以及耕作方法不恰当,最易产生坷垃,不但不利于保墒,有时会严重的影响到作物的产量。因此,在田间检查耕作质量,多以坷垃的多少作为评定内容之一。为了正确说明一块地的坷垃数量,我们会采用了坷垃筛来鉴定。 Tillage quality is good or bad, a direct impact on crop emergence and development. In the more sticky soil texture, if the tillage is not timely and improper farming methods, the most prone to bump garbage, not only not conducive to moisture, and sometimes seriously affect the crop yield. Therefore, in the field to check the quality of farming, more to Ke rub waste as one of the assessment content. In order to correctly explain the amount of landfill, we will use the jigger sieve to identify.