n.耕作,耕种;耕地的情况;
例句:
The root distribution in different tilth layer is different.
各品种在耕层不同深度分布也不同.
Some of these provide tilth to a soil.
有些有机肥是用来改善土壤的耕性的.
So microflora increase tilth.
也就是说微生物群落能提高耕性.