An improvement on the classic "Part A" formula for general vegetative growing. This redesigned blend is built with purely soluble and available nutrients to allow the grower maximum flexibility. Specific balance of macro, secondary and micronutrients delivers an efficient combination of nutrients suitable for many different growing environments and crop types.
Jacks Professional 0-12-26 Acid Water Soluble Fertilizer Guaranteed Analysis
Derived From: Monopotassium Phosphate, Potassium Sulfate, Magnesium Sulfate, Iron DTPA, Iron EDTA, Iron EDDHA, Copper EDTA, Boric Acid, Ammonium Molybdate
| 100 ppm N Solution Contains the Following Elemental ppm | |
|---|---|
| Nitrate - N (NO3) | 0.0 |
| Ammonium - N (NH4) | 0.0 |
| Urea - N (Urea) | 0.0 |
| Phosphorus (P) | 50.0 |
| Potassium (K) | 217.0 |
| Calcium (Ca) | 0.0 |
| Magnesium (Mg) | 60.0 |
| Boron (B) | 0.50 |
| Copper (Cu) | 0.15 |
| Iron (Fe) | 3.0 |
| Manganese (Mn) | 0.5 |
| Molybdenum (Mo) | 0.1 |
| Zinc (Zn) | 0.15 |
Mixing Instructions
Chart displays the amount of dry fertilizer (oz.) to add to each gallon of water to make a concentrated solution. Please check your injector setting before use.
| Brand | Jacks Nutrients |
|---|---|
| SKU | JRP79230 |
| Weight (lb.) | 25.0000 |
| Height (in.) | |
| Width (in.) | |
| Length (in.) | |
| Hazardous Material | false |
| Lead Time | 7-10 |
| N-P-K | 0-12-26 |
| Nutrient Application | Hydroponic and Soil Nutrient |
| Nutrient Type | Inorganic Based |
| OMRI Certified | No |
| Nutrient Material Type | ["Granular"] |
What does Jack's Professional 0-12-26 Part A do, and what growth stage is it designed for?
Jack's Professional 0-12-26 Part A is a redesigned water-soluble fertilizer built for general vegetative growing, delivering a specific balance of macro, secondary, and micronutrients suited to many different growing environments and crop types. The formula contains no nitrogen, focusing instead on phosphorus, potassium, magnesium, sulfur, and a full suite of chelated micronutrients to give growers maximum flexibility in building their feed program.
What is the guaranteed analysis for Jack's Professional 0-12-26 Part A?
Jack's Professional 0-12-26 Part A carries an N-P-K of 0-12-26, meaning zero nitrogen, 12% available phosphate (P2O5), and 26% available potash (K2O). The formula also provides 6% water-soluble magnesium, 13% combined sulfur, and chelated micronutrients including 0.3% iron, 0.05% manganese, 0.015% copper, 0.015% zinc, 0.05% boron, and 0.0009% molybdenum.
Can Jack's Professional 0-12-26 Part A be used in hydroponic systems as well as soil grows?
Yes, Jack's Professional 0-12-26 Part A is formulated for use in both hydroponic systems and soil growing environments. The blend uses purely soluble and available nutrients, making the formula well suited to reservoir-based hydro setups, as well as traditional soil and other growing media.
Why does Jack's Professional 0-12-26 Part A contain no nitrogen, and how does that benefit growers?
Jack's Professional 0-12-26 Part A is intentionally nitrogen-free, which allows growers to source and control nitrogen independently for maximum flexibility in dialing in their feed ratios. This design makes the Part A formula easy to pair with a separate nitrogen source so growers can adjust the nutrient profile to match specific crop types or growth stages without being locked into a fixed nitrogen rate.
Are the micronutrients in Jack's Professional 0-12-26 Part A chelated for better availability?
Yes, the key micronutrients in Jack's Professional 0-12-26 Part A are chelated for improved availability. Iron is supplied through a combination of Iron DTPA, Iron EDTA, and Iron EDDHA, while copper, manganese, and zinc are each delivered in chelated EDTA form, helping ensure these elements remain plant-available across a range of growing conditions.
Is Jack's Professional 0-12-26 Part A OMRI certified or considered an organic fertilizer?
Jack's Professional 0-12-26 Part A is not OMRI certified and is classified as an inorganic-based fertilizer. Growers running certified organic programs should look for an OMRI-listed alternative, but the 0-12-26 formula is well suited to conventional hydroponic and soil production.
