NP 15:25 +12S(Sulphoammophos), Agropolychim

The product is supplied as a loose granulate, highly soluble in water. Its composition is balanced for the needs of most field crops: 15% nitrogen, 25% phosphorus, and 12% sulfur. This formula ensures optimal starter nutrition during germination and early growth, while also stimulating root system development. If you are looking for a reliable solution to improve fertilization efficiency — purchasing Sulfoammophos from Agropolychim through Neuron is the right strategic choice. The company supplies verified fertilizers from leading manufacturers and offers flexible delivery options across Ukraine. Contact Neuron for personalized consultation, selection of volumes, and placing an order for Sulfoammophos — both wholesale and retail.

Advantages of Sulfoammophos NP 15:25+12S from Neuron

The product from Agropolychim contains three nutrients in highly available form. Nitrogen (15%) supports intensive vegetative growth, phosphorus (25%) activates photosynthesis and reproductive organ formation, and sulfur (12%) improves nitrogen uptake and protein synthesis. The granules are uniform in size, ensuring even soil distribution. Its water solubility allows flexible application — by spreaders, root application, pre-sowing incorporation, or fertigation. Thanks to the balance between fast-acting nitrogen and long-lasting phosphorus, Sulfoammophos is effective at all plant development stages. It ensures an early start and contributes to full yield formation by enhancing photosynthetic activity. Phosphorus in the formula has high biological availability, with part of it in water-soluble form — critical at germination, when plants are most sensitive to phosphorus deficiency. Additionally, sulfur enhances protein metabolism, especially important for high-protein crops such as wheat, rapeseed, and sunflower.

Composition of Sulfoammophos and suitable crops

The composition includes 15% nitrogen (N), 25% phosphorus (P₂O₅), and 12% sulfur (SO₃). Nitrogen is in ammonium form, reducing losses in the soil and providing long-term nutrition. Phosphorus is plant-available and not easily fixed in the soil, while sulfur stimulates protein synthesis and improves nitrogen efficiency. The fertilizer is suitable for a wide range of crops: wheat, rapeseed, sunflower, corn, barley, sugar beet, vegetables, as well as watermelon and other melons. The balanced ratio of phosphorus, nitrogen, and sulfur ensures reliable starter nutrition.

Application of Sulfoammophos for different crops

Sulfoammophos NP 15:25+12S is suitable for many crops — both in open fields and under irrigation. Thanks to its well-designed formula, the fertilizer increases yields even under medium-level farming practices.

1. For sunflower, the product supports active head formation and increases oil content. Adequate phosphorus and sulfur levels enable rapid root system development — critical under limited moisture conditions.
2. For rapeseed, early application promotes root growth, enhances winter and drought tolerance. Sulfur supports synthesis of sulfur-containing amino acids, directly improving seed quality.
3. For winter crops, especially wheat, application in autumn during primary tillage or pre-sowing cultivation ensures effective rooting, better frost resistance, and sets up high yield potential for spring.
4. For melons, particularly watermelons, the product improves pulp quality, sugar content, and reduces nitrate levels. Regular use on melon crops also improves storage quality.

An additional advantage is its efficiency on neutral and slightly acidic soils. On phosphorus- or sulfur-deficient soils, application delivers particularly noticeable effects. Recommended application rates vary depending on crop, soil nutrient content, and target yield. On average:

• winter cereals — 150–250 kg/ha;
• rapeseed — 200–300 kg/ha;
• sunflower — 180–250 kg/ha;
• watermelon and melons — 200–250 kg/ha.

Soil analysis is recommended before application. Unlike Ammophos, Sulfoammophos contains additional sulfur — essential for protein synthesis, especially in oilseeds. It also has better solubility, does not cake during storage, and is suitable for all crops. Sulfoammophos is compatible with most mineral fertilizers, including urea, ammonium nitrate, potassium chloride, and potassium sulfate. However, physical compatibility should be checked before mixing, and avoid combining with lime or alkaline products. Thanks to its balanced formula, the fertilizer improves field emergence, strengthens root system development, enhances water and nutrient uptake, directly increasing yield — gains can reach 10–30% depending on crop and conditions.

Environmental safety of Sulfoammophos

The fertilizer is produced at Agropolychim’s European facilities (Bulgaria) in compliance with REACH and ISO standards. Levels of toxic impurities are below permissible limits. The product does not acidify soil and does not accumulate in the environment. Sulfoammophos is free from chlorine, heavy metals, and other undesirable elements. It is safe for crops requiring high product purity — vegetables, fruits, berries. Granules are dust-free, non-caking during storage, and do not emit harmful gases when decomposing. This makes it safe for farmers handling it in the field as well as for end consumers. Importantly, Sulfoammophos reduces the need for separate sulfur fertilizer application, saving resources and simplifying field operations.

Benefits of working with Neuron

1. Neuron offers logistical accuracy, agronomic expertise, and transparent procurement. The company has over 20 years of experience in the mineral nutrition market, partners with reliable manufacturers, and maintains broad supply geography.
2. The price of Sulfoammophos depends on volume, packaging (bags, big-bags), and delivery method (road, rail, port). The product is always in stock or available on order. Supply is possible in both small batches and railcar volumes.
3. Clients receive full support: fertilizer selection by crop and soil type, agronomic advice, technical application charts, and support when mixing with other products.
4. Company partners include Agropolychim, Grupa Azoty, Neochim, Socar, and other international brands. This guarantees factory-quality fertilizers, no counterfeits, and full certification.

How to choose the right fertilizer

When purchasing Sulfoammophos, consider the following factors:

• type of crop (technical, cereals, vegetables);
• requirements for phosphorus, nitrogen, and sulfur on your field;
• preceding crop in the rotation;
• soil acidity and structure;
• application method (base, pre-sowing, or liquid form).

The universal 15:25+12 formula suits most standard situations. Maximum effectiveness, however, is achieved only with correct dosing, timing, and application method. Neuron’s agronomic team helps adapt solutions to any conditions. Weather forecasts, irrigation, soil moisture, and other factors should also be considered.