soil productivity

例句：

1. 1. The soil productivity of theregion is high, which is beneficial foragriculture.
   该地区的土壤生产力高，对农业有利。
2. 2. To improve soil productivity, farmers needto use more organic fertilizers.
   为了提高土壤生产力，农民需要使用更多的有机肥料。
3. 3. The government has launched a projectto increase soil productivity through scientific farming techniques.
   政府启动了一个项目，通过科学种植技术来提高土壤生产力。