Diamophoska N10:P20:K20+4S

Diammonium phosphate N10:P20:K20+4S is a balanced mineral fertilizer with an even content of essential nutrients — nitrogen, phosphorus, and potassium — in a 10:20:20 ratio, as well as 4% sulfur in an easily available sulfate form.

The formula provides comprehensive nutrition for crops at all stages of vegetation:

• Nitrogen (N) – stimulates the growth of vegetative mass;
• Phosphorus (P₂O₅) – promotes the development of the root system;
• Potassium (K₂O) – increases resistance to drought, frost and disease;
• Sulfur (SO₃) — enhances nitrogen absorption and improves protein metabolism.

The fertilizer has a slightly acidic reaction (pH 5.5–6.5), which makes it suitable for use on most soils in Ukraine.

Recommended use:

• for base, pre-sowing, and in-row application;
• for all main crops: grain, industrial, vegetable, oilseed, fodder;
• especially effective on chernozems, sod-podzolic and sandy soils.

Advantages:

• universal formula N:P:K = 1:2:2 – for most crops;
• sulfur — improving product quality: protein, gluten, oil;
• granular form – precise and uniform application;
• mild effect on the soil – does not cause salinization;
• compatible with most agricultural technologies – suitable for traditional, local, strip application.

Limitations and warnings:

• do not store near acids, alkaline reagents or organic fertilizers;
• avoid moisture and direct sunlight during storage.

Appearance and сolor: irregularly shaped granules with a characteristic odor

• Store in dry, well-ventilated areas, protected from direct sunlight; maintain relative humidity below 70%; keep on pallets at least 15 cm above the ground, in a single layer.
• Packaging (bags, big bags) must be sealed to prevent moisture ingress.
• Acceptable storage temperature: –20°C to +35°C (avoid high humidity; if caking or condensation occurs, loosen before use).
• Avoid contact with acids, alkalis, organic compounds, or other fertilizers that may trigger chemical reactions.
• For long-term storage, periodically loosen the product.

Shelf life: 12 months from the date of manufacture if transportation and storage conditions are met. After the warranty period expires, the product must be tested for compliance with the technical specifications before use.

Note: It is best to fertilize all fruit and berry plants with complex fertilizers in spring, followed by soil digging. When feeding trees, it is recommended to incorporate the fertilizer into the soil at a depth of 8–10 cm.

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.