Quantum·Macronutrients
Proventus Ultra P(K)
Proventus Ultra P(K) — a dry powdered water-soluble NPK 3-37-37 + ME fertilizer for phosphorus and potassium nutrition without stimulating excessive vegetative growth, from flowering to ripening.
Main advantages
- P₂O₅ and K₂O 37 each — no excessive vegetative growth
- Flowering, formation, ripening — with P deficiency
- Greenhouse cucumber, indeterminate tomatoes — per the maker
- Fertigation 5–15 kg/ha per day — drip and sprinkling
- Foliar 1–3 kg/ha — every 10–14 days
Overview
About this product
Proventus Ultra P(K) — a water-soluble complex NPK 3-37-37 + ME fertilizer with a high phosphorus and potassium content from the PROVENTUS line of dry powdered fertilizers, for nutrition without stimulating excessive vegetative growth. The maker advises it during flowering, yield formation and ripening with phosphorus deficiency: on a low nutrient background and on crops with long growing and fruiting periods, such as greenhouse cucumber, indeterminate tomatoes, everbearing fruit and berry crops, on depleted substrates.
Nitrogen 3 in nitrate form, P₂O₅ and K₂O 37 each, without units. Fertigation 5–15 kg/ha per day.
Application
Rate, timing and crops
- Timing
- Flowering, yield formation and ripening with phosphorus deficiency in plants
- Method
Fertigation: 0.5–1.5 kg per 1000 m² per day (5–15 kg/ha per day) through any fertigation and irrigation systems; if not daily, the rate is increased in proportion to the number of days between feedings (for example, 5–15 kg per 1000 m² every 10 days)
Drip irrigation: concentration in the working solution 0.1–0.15% (1.0–1.5 kg/m³)
- Conditions
- Optimal air temperature 10–25 °C, wind up to 5 m/s
- Tank mix
Well compatible with most pesticides and fertilizers, except non-chelated calcium-containing ones
- Crops
- Cucumber (greenhouse)Indeterminate tomatoesEverbearing fruit and berry crops
Figures from the manufacturer, Quantum. Source page
Specifications
Nutrient composition
| Brand | Quantum |
|---|---|
| Type | NPK Complex |
Composition
| |
| Form | Powder |
| Application | Fertigation, Foliar |
| Target Crops | Cucumber, Tomato, Fruit crops, Berry crops |
| Manufacturer | НВК «Квадрат» |
| Packaging | 20 kg |
| Chloride-free | Yes |
| 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.