potassium metaborate

例句：

1. 1.This potassium metaborate is a key ingredient in the production of fertilizers.
   这种碳酸钾是生产肥料的关键成分。
2. 2. The plant requires potassium metaborate to grow and thrive.
   这种植物需要碳酸钾来生长和茁壮成长。
3. 3. The farmer applied this potassium metaborate to the soil to improve its fertility.
   这位农民将这种碳酸钾施于土壤中以改善其肥力。