| Component | Concentration (w/w) |
| Calcium (CaO) | 13% |
| Boron (B) | 0.15% |
Mr. Cal Max is a nitrogen-free and calcium-containing product which is enriched with boron to maximize the absorption and mobility of calcium in plants. It’s suitable for the conditions that plants need calcium, but there is a limitation for nitrogen use. This product can be used in plants to meet their calcium requirement and to prevent physiological disorders such as tomato blossom-end rot, apple bitter pit and fruit cracking. Mr. Cal Max also improves fruit quality and shelf life of the fruits. It is a fully water-soluble fertilizer that could be used in different irrigation systems and foliar applications.