Nitroammophoska N15:P15:K15+11S

Nitroammophoska N15:P15:K15+11S is a versatile complex fertilizer with a balanced content of the three primary nutrients: nitrogen (N), phosphorus (P₂O₅), and potassium (K₂O) — each at 15%, as well as 11% sulfur in the form of sulfate (SO₃), which is readily available for plant uptake.

With a neutral pH (5.5–6.5), it does not acidify the soil and is suitable for use across a wide range of agricultural soils — from chernozems to sandy loams and acidic soils.

The sulfur in the formulation:

• enhances protein, enzyme, and chlorophyll synthesis;
• boosts nitrogen uptake;
• improves product quality (protein, gluten, oil content, amino acids).

Recommended use

• suitable for all crops: cereals, oilseeds, technical crops, fodder crops, vegetables, root crops, fruit trees, berries, flowers/lawns, and conifers;
• for basal application in autumn or spring;
• pre-sowing incorporation into the soil;
• localized or row application.

Advantages

• balanced three-component (NPK) formula — optimal starter nutrition for any crop;
• high sulfur content — improves nitrogen efficiency and crop quality;
• universal application — suitable for most soils and climatic zones;
• uniform granules — precise dosing and even distribution;
• minimal nutrient loss during transportation and storage.

Limitations and warnings:

• not recommended for use on waterlogged, highly acidic soils without prior liming;
• avoid storing with alkaline or organic fertilizers.

Appearance and сolor: irregularly shaped granules with a characteristic odor

• store in dry, well-ventilated facilities, protected from direct sunlight, with relative air humidity not exceeding 70%. Place bags on pallets at least 15 cm above the floor, arranged in a single layer;
• packaging (bags, big bags) must be tightly sealed to prevent moisture ingress;
• permissible storage temperature: from –20 °C to +35 °C (avoid exposure to high humidity, as this may cause caking or condensation — loosen before use if necessary);
• avoid contact with acids, alkaline substances, organic compounds, or other fertilizers that may cause a chemical reaction;
• in case of prolonged storage, periodically loosen the product to prevent clumping.

Storage guarantee period: the shelf life of the fertilizer, provided that transportation and storage conditions are observed, is 12 months from the date of manufacture. After the expiration of the guaranteed storage period, the fertilizer must be tested for compliance with technical specifications before use.

The fertilizer application rates were developed by the Department of Agrochemistry and Soil Science of Uman National University of Horticulture under the scientific supervision of Doctor of Agricultural Sciences, Professor Hospodarenko H.M., commissioned by AC Grossdorf. These recommendations are the intellectual property of AC Grossdorf and may be distributed only with proper attribution to the owner.
The provided application rates are generalized and do not replace the need for consultation with an agronomist.