potash feldspar

例句：

1. 1. Potash is an essential ingredient in fertilizers.
   磷酸盐是肥料中必不可少的成分。
2. 2. The soil needs potash to grow crops.
   土壤需要磷酸盐来种植作物。
3. 3. The farmer applied potash to the soil before planting.
   农民在播种前给土壤施用磷酸盐。