化学不育剂

例句：

1. 1. The chemical fertilizer is very effective in improving soil quality.
   这种化学肥料在改善土壤质量方面非常有效。
2. 2.The chemical pesticide is harmful to the environment and should be used with caution.
   这种化学杀虫剂对环境有害，应谨慎使用。
3. 3. The chemical weed killer is effective in controlling weed growth.
   这种化学除草剂能有效控制杂草生长。