superphosphate
/ˌsupərˈfɑsfeɪt/
noun
- A type of fertilizer made by treating phosphate rock with acid, used to provide phosphorus to plants.
- Using too much superphosphate can harm the soil, so it's important to follow the instructions.
- Farmers often apply superphosphate to their fields to help crops grow strong roots.
- The garden center sells bags of superphosphate for use on vegetables and flowers.
Synonyms