Quantum·Macronutrients
Quantum Fos Active pH
Quantum Fos Active pH — a liquid complex acidifying fertilizer with P₂O₅ 140 g/l, nitrogen, potassium, micronutrients and seaweed extract only for tank mixes in foliar feeding.
Main advantages
- pH 1.8–2.5 — acidifies the spray solution
- P₂O₅ 140 g/l — roots at the start, flowering
- Metal micronutrients in chelate — stable in solution
- Add to the tank first — the maker's advice
- Only in tank mixes — with fertilizers and pesticides
Overview
About this product
Quantum Fos Active pH — a multifunctional liquid fertilizer for foliar feeding with a raised phosphorus content: 140 g/l of P₂O₅, 70 g/l each of N and K₂O, sulphur, magnesium, micronutrients (metals in chelated form) and 20 g/l of extract of the seaweed Ascophyllum nodosum from Acadian Seaplants. It has an acidic reaction, pH 1.8–2.5, and buffering properties, so, per the maker, it acidifies the spray solution for alkaline fertilizers and plant protection products sensitive to alkaline hydrolysis.
It is used only in tank mixes and added to the tank first. Rates: small grain cereals, maize 1.5–4.0 l/ha, oilseed rape, soybean, beet 2.0–4.0, cucumbers 3.0–4.0, other vegetable crops 3.0–5.0 l/ha.
Application
Rate, timing and crops
Rate
Small grain cereals
- Application rate
- 2.0–4.0 l/ha
- Growth and development stage
- Tillering (BBCH 21–29)
Small grain cereals
- Application rate
- 1.5–3.0 l/ha
- Growth and development stage
- Stem elongation – flag leaf (BBCH 30–49)
Small grain cereals
- Application rate
- 1.5–3.0 l/ha
- Growth and development stage
- Milk-wax ripeness (BBCH 83–87)
Maize
- Application rate
- 2.0–4.0 l/ha
- Growth and development stage
- 3–5 leaves (BBCH 13–15)
Maize
- Application rate
- 2.0–4.0 l/ha
- Growth and development stage
- 6–8 leaves (BBCH 16–18)
The product has an acidic pH reaction; it is recommended to add it to the tank mix first
The product is intended for use only in tank mixes with other fertilizers and pesticides
- Method
- Foliar feeding, only in a tank mix
- Conditions
- Acidic reaction, pH 1.8–2.5
- Tank mix
Add to the tank mix first
Use only in tank mixes with other fertilizers and pesticides: it has a pronounced acidifying action
- Crops
- Small grain cerealsMaizeSunflowerOilseed rapeSoybeanPeaSugar beetFodder beetPotatoTomatoesPepperAubergineCucumbersCarrotOnionGarlicCabbageApplePearQuinceApricotPeachSweet cherryCherryGrapesStrawberryCurrantRaspberryNut
Figures from the manufacturer, Quantum. Source page
Specifications
Nutrient composition
| Brand | Quantum |
|---|---|
| Type | NPK Complex |
Composition
| |
| Form | Liquid |
| Density | 1.15–1.25 kg/l |
| pH | 1.8–2.5 |
| Application | Foliar |
| Target Crops | Cereals, Corn, Sunflower, Rapeseed, Soybean, Peas, Sugar Beet, Fodder beet, Potato, Tomato, Pepper, Eggplant, Cucumber, Carrot, Onion, Garlic, Cabbage, Apple, Pear, Quince, Apricot, Peach, Sweet cherry, Cherry, Grapes, Strawberry, Currant, Raspberry, Nut crops, Pome fruit, Stone fruit, Berry crops |
| Manufacturer | НВК «Квадрат» |
| Packaging | 20 l |
| Origin country | Ukraine |
Vendor offers
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Questions & answers
What farmers ask most
- Rates depend on crop, prior history, soil-analysis results, and current soil nutrient status. A typical NPK complex on cereals is 150–300 kg/ha. Use the NPK calculator on adam.ua or consult an agronomist for an exact dose.
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Product specifications are compiled from publicly available manufacturer sources and are provided for guidance only — confirm all details with the vendor before purchase. Brand names, logos and trademarks are the property of their respective owners; a listing on ADAM does not imply affiliation, sponsorship or endorsement.