英语语法分析

Subsoiling returning could significantly increase soil urease activity and sucrase activity.

深松耕还田显著提高土壤脲酶、蔗糖酶活性。

No-ploughing is inferior to promote effectiveness of nutrient in soils than subsoiling and ploughing.

在对土壤中养分的有效化方面，免耕不如深松和普翻处理。

Subsoiling reduced runoff and soil losses by more than 50% and 90% respectively, compared to conventional tillage.

与常规耕作比较，深松覆盖处理分别减少径流和土壤流失50%和90%。