Manufacturer · GOST R 55520-2013 · N+P+K in one granule
We produce and supply nitroammophoska, azofoska, nitrophoska and diammofoska. Three nutritional elements — N, P, K — in every granule. One application instead of three.
classic N:P:K ratio in nitroammophoska
total NPK content in one granule
minimum order quantity
dispatch time from warehouse
GOST R 55520-2013
Complex NPK Fertilizers
We produce 4 grades of complex fertilizers with different N:P:K ratios. Direct factory shipments worldwide.
The most universal complex fertilizer — equal N:P:K ratio 1:1:1. Replaces three separate fertilizers with one. Nitrogen is present in two forms: fast-acting nitrate and prolonged ammonium. Standard for basal application to cereals and industrial crops.
Chlorine-free analogue of nitroammophoska — potassium is supplied as potassium sulfate, not potassium chloride. Additionally contains 6% sulfur, beneficial for cruciferous and allium crops. Optimal for chlorine-sensitive crops when applied in spring and in fertigation systems.
The lower concentration makes nitrophoska safe for in-row application at sowing and in the root zone of fruit trees. Risk of root burn is minimal. Used where nitroammophoska is too concentrated: greenhouses, at sowing, young plantings.
Concentrated grade with emphasis on phosphorus and potassium at moderate nitrogen levels. Used on soils with P and K deficiency or for crops with high requirements for these elements: potatoes, fruit trees, root crops. Highest total NPK concentration — 62%.
The N:P:K ratio determines what tasks the fertilizer addresses. Use this guide for selection.
| Parameter | Nitroammophoska 16-16-16 | Azofoska 16-16-16 | Nitrophoska 11-10-11 | Diammofoska 10-26-26 |
|---|---|---|---|---|
| N : P : K | 16 : 16 : 16 | 16 : 16 : 16 | 11 : 10 : 11 | 10 : 26 : 26 |
| Total NPK, % | 48 | 48 | 32 | 62 |
| Additional sulfur (S) | — | 6% | — | — |
| K source | KCl | K₂SO₄ | KCl | KCl |
| Chlorine-sensitive crops | no (autumn) | yes | no (autumn) | no (autumn) |
| In-row application | no | no | yes | no |
| Rate, kg/ha | 200–250 | 200–250 | 300–400 | 150–250 |
| Price | Contact us | Contact us | Contact us | Contact us |
| Standard | GOST R 55520-2013 | GOST R 55520-2013 | GOST R 55520-2013 | GOST R 55520-2013 |
One application supplies crops with three major nutrients simultaneously — saving time and machinery costs.
Nitroammophoska 16-16-16 under autumn tillage 200–250 kg/ha. Provides balanced early-season nutrition and reduces number of application passes.
Azofoska 16-16-16 with sulfur — NPK+S in one product. Rapeseed consumes up to 60 kg S/ha, which fully covers sulfur deficiency on most soils.
Chlorine-free azofoska or diammofoska 10-26-26 — 200–250 kg/ha. High phosphorus and potassium doses without chlorine: higher starch content, lower scab susceptibility.
Nitroammophoska 16-16-16 250–300 kg/ha basal application. Balanced NPK supports leaf canopy development, root growth and sugar accumulation.
Nitroammophoska or diammofoska in-row (nitrophoska) at sowing — starter nutrition. Basal dose — nitroammophoska under tillage 200–300 kg/ha.
Nitrophoska 11-10-11 in root zone — gentle action with no risk of root burn. Chlorine-free azofoska under main digging.
Nitrophoska 11-10-11 for greenhouses and seedlings. Chlorine-free azofoska for tomatoes, cucumbers and peppers sensitive to chlorine.
Nitrophoska 11-10-11 — 3–4 times per season at 20–30 g/m². Balanced NPK maintains dense turf and deep leaf colour.
NPK grades with different N:P:K ratios in stock
maximum total NPK in diammofoska 10-26-26
separate applications replaced by one NPK granule
producing complex fertilizers for agricultural enterprises
We sell directly from the factory — saving 8–15% compared to dealer prices. The larger the order, the better the rate: from 50 tonnes per season — individual pricing.
All three elements in one granule — every plant receives N, P and K in equal proportion regardless of spreading uniformity. No component segregation during storage.
Per batch: GOST R 55520-2013 certificate, TR EAEU declaration, quality passport with N, P, K analysis per parameter. Accepted for government agricultural support applications.
Trucks from 1 tonne, rail wagons from 60 tonnes. Delivery worldwide. Big bags 500–1000 kg, 50 kg bags, bulk.
Submit a request — our manager will send the current price list for nitroammophoska, azofoska and diammofoska with delivery cost calculation.
Fill in the form — we will respond within 30 minutes
Nitroammophoska and azofoska have the same N:P:K ratio of 16-16-16 but differ in potassium source. Nitroammophoska contains potassium chloride (KCl), while azofoska contains potassium sulfate (K₂SO₄). This is critically important for chlorine-sensitive crops: potatoes, grapes, onions, cucumbers — use azofoska only. For cereals, oilseeds and sugar beet, chlorine applied in autumn is harmless, so nitroammophoska is the economical and correct choice. Azofoska also contains 6% sulfur, which is an additional advantage for rapeseed and crucifers.
Nitroammophoska 16-16-16 is not recommended for in-row application: the high salt concentration can cause seedling and root burn — so-called "salt stress". For in-row application at sowing, nitrophoska 11-10-11 with reduced concentration is used, or diammofoska 10-26-26 at low rates (10–20 kg/ha). Nitroammophoska is used only for basal incorporation — at least 2 weeks before sowing.
From a logistics and operational cost perspective — definitely more cost-effective: one delivery instead of three, one machinery pass instead of three, one warehouse and one contract. In terms of active ingredient cost, complex fertilizers are comparable to or slightly more expensive than separate application, but operational savings offset this difference. On large areas, reducing machinery passes saves significantly on fuel and depreciation. For smaller farms or soils with non-standard nutrient needs, separate application provides greater flexibility in dosing.
On heavy clay loam and clay soils, nitroammophoska is applied in autumn under deep ploughing: phosphorus and potassium are immobile and have time to convert to available forms by spring, while chlorine leaches out. On light sandy soils with leaching water regime, autumn application is impractical — nitrate nitrogen will leach out. In this case nitroammophoska is applied in spring under pre-sowing cultivation. Chlorine-free azofoska can be applied in spring on any soil type and for any crop.
Each batch is supplied with: GOST R 55520-2013 compliance certificate specifying grade and N:P:K ratio; TR EAEU 041/2017 declaration of conformity; sanitary-epidemiological conclusion; quality passport with laboratory analysis of N, P₂O₅, K₂O, chlorine and moisture content for the specific batch. The full documentation package is accepted for government agricultural subsidy applications.
Complex NPK fertilizers contain nitrogen (N), phosphorus (P) and potassium (K) in a single granule at a preset ratio. Every plant receives all three elements simultaneously — regardless of spreading uniformity across the field. This is a key advantage over blends of separate fertilizers, where uneven spreading can cause nutritional imbalance in parts of the field.
AgroChemProm produces 4 grades of complex fertilizers under GOST R 55520-2013: nitroammophoska NPK 16-16-16 (universal), azofoska NPK 16-16-16 (chlorine-free with sulfur), nitrophoska NPK 11-10-11 (reduced concentration), diammofoska NPK 10-26-26 (P and K emphasis).
Nitroammophoska NPK 16-16-16 is the best-selling complex fertilizer. The classic N:P:K 1:1:1 ratio suits most crops and soils for basal application. Nitrogen is supplied in two forms: nitrate (rapid uptake immediately after snowmelt) and ammonium (prolonged nutrition throughout the growing season).
Total NPK concentration of 48% means lower weight and transport costs compared to low-concentration equivalents. Granule size 2–5 mm ensures uniform spreading with any seeder.
The correct NPK grade selection is based on three factors: soil agrochemical analysis (available P and K levels), crop requirements (chlorine sensitivity, sulfur needs), application method and timing (basal or in-row). On most black soils and grey forest soils with normal P and K content, nitroammophoska 16-16-16 is optimal. On soils with P and K deficiency — diammofoska 10-26-26 combined with supplemental nitrogen.
For chlorine-sensitive crops (potatoes, grapes, onions) and spring application — chlorine-free azofoska with potassium sulfate. For in-row application or young plantings — nitrophoska 11-10-11 with reduced salt concentration.
To place an order, submit a request on the website or call us. Specify the NPK grade, required volume in tonnes, desired delivery timeline and destination. If unsure which grade to choose — specify the crop and area: an AgroChemProm agronomist will select the optimal option and calculate application rates free of charge.
Minimum order — from 1 tonne for self-pickup. Delivery worldwide by truck and rail. For farms planning seasonal volumes of 50+ tonnes, individual pricing programmes with deferred payment are available.