干土十分坚硬,以斧头打始碎,土块有白痕,并粘在斧上,湿土可塑性大,粘着力更强,搓成条或球均光滑,手指感觉细腻,塑性甚大,土壤压成片时表面光滑有亮光。
不能在重黏土或岩石中打这种井。
它们在重黏土里生长得很好,也能在冰暴里生存下来。
They grow well in heavy clay soils, and they can survive ice storms well.
无耕最好是用在砂土中,不过在重质黏土中,秋天传统的耕作需要去充分地打散泥土为了庄稼足够的产量。
No-till works best in sandy soils, but in the heavier clay soils, fall traditional plowing is required to break the soil up enough for adequate crop yields.
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