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Peters Professional21-7-7 Acid Special
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Designed exclusively for high-acid crops. Offsets high alkalinity water while effectively lowering pH levels in growing media.
- customizing component can be used with a variety of base formulations
- effective for water types 3 and 4
- formulated with extra iron to promote greening
- 100% water soluble
- pure formulation—no ballast substances
- contains NPK, magnesium and micronutrients
- developed for peat-based cultures (pot plants, bedding plants and container nursery stock)
- exclusive M-77 chelating formula for fast, efficient nutrient uptake
Rates for Peters Professional, 21-7-7, Acid Special
Weight (in ounces) of product needed to mix one gallon of concentrate
| Target Fertilizer Concentration (N/ppm) After Dilution | Common Injector Ratios | EC (mmhos/cm) of Target Feed Rate After Dilution | ||||
|---|---|---|---|---|---|---|
| 1:15 | 1:100 | 1:128 | 1:200 | 1:300 | ||
| 25 | ||||||
| 50 | ||||||
| 75 | ||||||
| 100 | ||||||
| 125 | ||||||
| 150 | ||||||
| 175 | ||||||
| 200 | ||||||
| 250 | ||||||
| 300 | ||||||
| 350 | ||||||
| 400 | ||||||
| 450 | ||||||
| 500 | ||||||
| 600 | ||||||
*** Exceeds maximum solubility.
Gallons of water required to dissolve one 25lb. bag of fertilizer
| Target Fertilizer Concentration (N/ppm) After Dilution | Common Injector Ratios | EC (mmhos/cm) of Target Feed Rate After Dilution | ||||
|---|---|---|---|---|---|---|
| 1:15 | 1:100 | 1:128 | 1:200 | 1:300 | ||
| 25 | ||||||
| 50 | ||||||
| 75 | ||||||
| 100 | ||||||
| 125 | ||||||
| 150 | ||||||
| 175 | ||||||
| 200 | ||||||
| 250 | ||||||
| 300 | ||||||
| 350 | ||||||
| 400 | ||||||
| 450 | ||||||
| 500 | ||||||
| 600 | ||||||
*** Exceeds maximum solubility.