Humboldt Nutrients' Structural Integrity is a fertilizer supplement which, when used in conjunction with a regular fertilization program, can help you reach all of your growing goals. Humboldt Nutrients' Structural Integrity is a fertilizer supplement which, when used in conjunction with a regular fertilization program, can help you reach all of your growing goals. #9679; Product most effective if used in same season. 9679; Use only as directed. 9679; Keep out of direct sunlight during storage or extended periods of time. 9679; Store at room temperature. 9679; Wear proper protective clothing.
Directions Application Rates: Hydroponics Application: Use 1-3ml per gallon of reservoir water. Change nutrient solution weekly to avoid excess sediment. General Application: Use 1-3ml per gallon of water every 1-2 weeks. Foliar Application: Use 1-3ml per gallon of finished spray solution.