Tilth 's the quality of a soil which makes it easy to cultivate and easy for the roots of plants to grow.

耕性指的是使土壤易于耕作，根系易于生长的一种土壤性状。

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Although the status of soil available boron and zinc was improved somewhat, there are still 2/3 of tilth lack of boron and 1/3 lack of zinc.

相比于二十年前，土壤缺硼和缺锌的状况虽然有所改变，但仍有2／3的土壤缺硼、1／2的土壤缺锌。

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