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Urea (carbamide)
Urea (carbamide) granulated nitrogen fertilizer
TU U 82.9-36584168-005:2018 packaged mineral fertilizer
Sales Conditions/packaging: EXW, FCA, big bags, 50 kg sacks
Delivery terms: by GROSSDORF’s own transport across Ukraine or self-pickup
Shipment from: | Khatsky, Cherkasy region | Mayaky, Vinnytsia region | Ternopil |
|---|---|---|---|
Price, UAH | 27 000 | 27 000 | 27 500 |
Urea (CO(NH₂)₂) is a high-concentration nitrogen fertilizer containing 46% nitrogen in amide form (NH₂) — the highest nitrogen content among solid mineral fertilizers.
Amide nitrogen gradually mineralizes in the soil, first converting into ammonium (NH₄⁺) and then into nitrate (NO₃⁻) form. This ensures slow-release, stable plant nutrition without nitrogen shock.
Recommended use:
- suitable for cereals, oilseeds, industrial crops, forage crops, vegetables, root crops, fruit trees, berry bushes, flowers, and lawns
- Base application with soil incorporation;
- pre-sowing application;
- top dressing during vegetation (in granulated or dissolved form);
- foliar feeding (as a 5–10% aqueous solution);
- fertigation after complete dissolution.
Advantages:
- highest nitrogen content among mineral fertilizers;
- slow-release effect reduces nitrogen losses and ensures prolonged feeding;
- versatile usage: soil, foliar, and drip application;
- high solubility — ideal for fertigation;
- compatible with micronutrients, stimulants, and pesticides (after compatibility testing).
Limitations and warnings:
- do not apply on the soil surface without incorporation — risk of nitrogen loss due to NH₃ volatilization;
- do not exceed foliar feeding rates — risk of leaf burn;
- tank mixes must be tested for compatibility before use;
- highly hygroscopic — strict adherence to storage conditions is critical.
Appearance and color: white or slightly yellowish granules
| Mass fraction of total nitrogen content (as N), % | 46,2 – 46,4 |
| Mass fraction of biuret content, % | 0,8 – 1,4 |
| Moisture content, not more than,% | 0,2 – 0,5 |
| Granulometric composition, % | |
| Less than 1 mm no more | 3 |
| From 2 to 4 mm | 70 – 97 |
| From 1 to 4 mm | 94 – 100 |
- 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.
| Culture | Application period /rate, kg/are | Special application conditions | |||
|---|---|---|---|---|---|
| Pre-sowing cultivation | First fertilization | Second fertilization | Third fertilization | ||
| Cereal сrops | |||||
| Winter wheat | 07 - 0,9 | - | - | - | in autumn during plowing or digging: if moisture is available, apply with immediate incorporation into the soil after favorable preceding crops. |
| - | 1,3–2,0 | - | - | thinned crops (spring regrowth) | |
| - | 0,9–1,3 | - | - | for crops with optimal stand density (spring regrowth stage) | |
| - | - | 0,9 - 1,3 | - | before stem elongation | |
| - | - | - | 0,6 kg to 3 L of water | to improve grain quality, foliar application | |
| Spring barley | 1,0 - 1,3 | - | - | - | only under sufficient soil moisture with immediate incorporation into the soil |
| - | 0,7 | - | - | no later than the 1–2 leaf stage, provided there is sufficient moisture | |
| Oats | 1,0-1,3 | - | - | - | applied prior to pre-sowing cultivation, only under sufficient soil moisture with immediate incorporation into the soil |
| - | 0,7 | - | - | no later than the 1–2 leaf stage, provided there is sufficient moisture | |
| Maize | 1,3-2,6 | - | - | - | in autumn during plowing or digging: if moisture is available, apply with immediate incorporation into the soil after favorable preceding crops. |
| 1,3-2,0 | - | - | - | applied prior to spring cultivation | |
| - | - | 0,9 | - | at the 3–5 leaf stage, provided there is sufficient moisture | |
| Industrial crops | |||||
| Sunflower | 1,3 | - | - | - | before sowing |
| - | 0,7 | - | - | for fertilization (if needed at the 2–3 leaf pair stage) | |
| Sugar beet | 2,17 | - | - | - | before sowing |
| - | 0,7 | - | - | for fertilization (if needed at the 2–3 leaf pair stage) | |
| Oilseeds | |||||
| Winter rapeseed, spring rapeseed | 0,8 | - | - | - | during autumn (fallow) tillage or before sowing |
| - | 2,6 | - | - | when spring vegetation resumes | |
| - | - | 1,7 | - | at the stem formation stage | |
| foliar fertilization (non-root) simultaneously with pesticide application several times before the flowering stage – 0.2–0.4 kg/are (working solution 3 L/are), with mandatory addition of magnesium sulfate 0.07 kg/are | |||||
| Soybeans | 0,7 | - | - | - | before sowing |
| - | 0,7 | - | - | apply as needed before full flowering | |
| Oil flax | 1,0 - 2,0 | - | - | - | before pre-sowing soil cultivation with immediate incorporation into the soil |
| Vegetables | |||||
| Tomatoes | 1,7 - 3,0 | - | - | - | before plowing or during sowing cultivation, if no further fertilization is planned |
| 1,0 - 2,2 | - | - | - | when planning fertilization | |
| - | 0,4 | - | - | 10 to 14 days after seedling transplanting | |
| - | - | 0,4 | - | during flowering | |
| Peppers | 2,6 - 3,0 | - | - | - | before plowing or during pre-sowing cultivation, if no further fertilization is planned |
| 0,9 - 1,3 | - | - | - | when planning fertilization | |
| Zucchini | 2,0 - 2,6 | - | - | - | before plowing or during pre-sowing cultivation, if no further fertilization is planned |
| 1,0 - 1,6 | - | - | - | when planning fertilization | |
| Cucumber | 1,8 - 2,6 | - | - | - | before plowing or during pre-sowing cultivation, if no further fertilization is planned |
| 0,4 - 1,3 | - | - | - | when planning fertilization | |
| Aubergine | 1,7 - 2,6 | - | - | - | before plowing or during pre-sowing cultivation, if no further fertilization is planned |
| 0,9-1,7 | - | - | when planning fertilization | ||
| Potatoes and other root crops | |||||
| Potatoes | 1,3-2,6 | - | - | - | during plowing |
| 0,4-0,8 | - | - | - | row application during planting | |
| 0,4 | - | - | first fertilization | ||
| Table beet | 1,3-2,0 | - | - | - | during plowing, if moisture is available, apply with immediate incorporation into the soil |
| - | 0,4 | - | - | for fertilization (if needed at the 2–3 leaf pair stage) | |
| - | - | 0,4 | - | if the diameter of the root crop is 2.5 cm | |
| Carrots | 2,0 | - | - | - | most effective for basic fertilizer under plowing with immediate incorporation into the soil |
| 0,3-0,4 | - | - | - | during planting | |
| - | 0,4 | - | - | row fertilization | |
| Radish | 2,0 | - | - | - | most effective for basic fertilizer under plowing with immediate incorporation into the soil |
| Onion | 2,0-2,6 | - | - | - | under plowing or into pre-sowing cultivation (if no other fertilizations are planned) |
| 1,1-1,7 | - | - | - | when planning fertilization | |
| - | 0,4 | - | - | 10–14 days after emergence | |
| - | - | 0,4 | at the bulb formation stage | ||
| Garlic | 1,3-2,6 | - | - | - | under plowing or into pre-sowing cultivation (if no other fertilizations are planned) |
| 1,1-1,3 | - | - | - | when planning fertilization | |
| - | 0,5-0,7 | - | - | in early spring | |
| - | - | 0,4 | for plant heights of 15-18 cm | ||
| - | - | - | 0,2 | when forming bulbs, fertilize in combination with phosphorus and potassium fertilizers (P20:K20) | |
| Fruit trees and berry trees | |||||
| Apple tree | - | 1,7-2,0 | - | - | Early spring fertilization with immediate incorporation into the soil, provided there is sufficient moisture |
| - | 0,02 | - | - | watering at the root: 10 liters of water per 1 m² | |
| Pear tree | - | 1,4-1,5 | - | - | Early spring fertilization with immediate incorporation into the soil, provided there is sufficient moisture |
| - | 0,015 | - | - | watering at the root: 10 liters of water per 1 m² | |
| Cherry tree | - | 2,5 | - | - | Early spring fertilization with immediate incorporation into the soil, provided there is sufficient moisture |
| - | 0,025-0,03 | - | - | watering at the root: 10 liters of water per 1 m² | |
| Raspberry | - | 1,3 | - | - | Early spring fertilization with immediate incorporation into the soil, provided there is sufficient moisture |
| - | 0,015-0,02 | - | - | watering at the root: 10 liters of water per 1 m² | |
| Wild Strawberry/Garden Strawberry | - | 1,1-1,3 | - | - | early spring fertilization before the start of vegetation with immediate incorporation into the soil, provided there is sufficient moisture |
| - | 0,015 - 0,020 | - | - | watering at the root: 10 liters of water per 1 m² | |
| Grapes | - | 2,3-2,5 | - | - | early spring fertilization before the start of vegetation with immediate incorporation into the soil, provided there is sufficient moisture |
| - | 0,023 - 0,025 | - | - | watering at the root: 10 liters of water per 1 m² | |
| Blueberry | Fertilize twice a year (April and August–September); after planting apply 1 tbsp (2nd year), 2 tbsp (3rd), 4 tbsp (4th), 8 tbsp (5th), and 16 tbsp or 40–50 g per mature bush (6th year and beyond). | ||||
| Flowers and lawn grasses | |||||
| Rose | - | 0,03 per 10 liters of water | - | spraying before and after flowering nourishes the plant and protects it from fungal diseases. | |
| Tulips | - | 1,3 | - | - | for plant heights of 5-8 cm |
| - | - | 0,5 | - | 10–15 days after the first fertilization, in combination with phosphorus and potassium fertilizers. | |
| Lawn grasses | 1,3 | - | - | - | in autumn before lawn establishment (on heavy soils), provided there is moisture, with immediate incorporation into the soil. |
| - | 1,2 | - | - | as needed, when the soil warms up to 10 C | |
| - | - | 1,2 | - | as needed, from the beginning of May to the end of June | |
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.