General Information


PHT CAL-SORB is an organically complexed calcium solution which consists of specific polyhydroxycarboxylic acids and 5-carbon carbohydrate groups derived from natural plant tissue. The calcium ion is complexed, allowing immediate absorption into the leaf and fruit. Complexed calcium will move more efficiently into the fruit and strengthen cell walls.

PHT CAL-SORB mixes with most chemicals, but a jar test should always be done to check compatibility.

Remember to always add water to the mix first. Do Not apply with phosphates, sulfates, or copper compounds.

Dilute in an adequate amount of water for thorough coverage.

Make 4-8 applications per season up to harvest or until desired rate is achieved. Use 2-4 quarts per acre per application.


USE 3-5 gallons per acre per season

Limitations, Restrictions, and Exceptions

- 2 to 3 qts. per acre starting at pre-bloom. Apply every 7 days.

The material and content contained in the Greenbook label database is for general use information only. Agworld and Greenbook do not provide any guarantee or assurance that the information obtained through this service is accurate, current or correct, and are therefore not liable for any loss resulting, directly or indirectly, from reliance upon this service. This label database does not replace the official manufacture issued label. Users of this database must read and follow the actual product label affixed to the container before use of the product.