Description
Nitro chalk is a calcium ammonium nitrate fertilizer used in pre-harvest treatment of fruits and vegetables, particularly to prevent blossom end rot in tomatoes and peppers. It is a granular fertilizer with an NPK ratio of 27:0:0, meaning it provides 27% nitrogen and 0% phosphate and potash. Nitro chalk is a highly soluble form of calcium, making it easy for plants to absorb.
Use April to September.
