ring mulching

例句：

1. 1. This method of mulching is particularly effective in preventing soil erosion.
   这种覆盖方法特别有效于防止土壤侵蚀。
2. 2. The ring mulching technique helps to retain moisture and improve soil quality.
   环状覆盖技术有助于保持水分并提高土壤质量。
3. 3. In this project, we will use ring mulching to enhance the growth of our crops.
   在这个项目中，我们将使用环状覆盖来增强我们作物的生长。