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Micronutrient fertilizer ORAKUL<sup>®</sup> sulfur active
Composition g/L
Sulfur SO3 760
Nitrogen N 115
Sodium Na2O 197
Packaging: 1 L
5 L
10 L

Micronutrient fertilizer ORAKUL® sulfur active

ORAKUL® sulfur active – is a high-efficient sulfur micronutrient fertilizer for foliar feeding of field, vegetable and perennial crops.

ORAKUL® sulfur active – is a microfertilizer of high purity, it does not contain any ballast additives, so it does not cause leaf burn. It eliminates effectively sulfur deficiency in plants.

Sulfur regulates the growth of the vegetative mass, increases survivorship rate of plants, increases crop yields. Sulfur is involved in the formation of proteins and vitamins, it is a very important component of mustard oil.
Being a compound of many plant protection formulations (so-called phytoalexins) sulfur has a positive effect on the resistance of plants to diseases such as Alternaria blight and Botrytis. As a part of amino acids that comprise the protein, it forms bonds that maintain the tertiary structure of the protein. Due to the fact that sulfur undergoes in the plant tissues both oxidation and reduction processes, it plays a significant role in plant respiration. Sulfur is involved in the formation of polyamines, which influence the structure of nucleic acids and ribosomes, regulate the processes of cell division. It enhances the fixation of nitrogen from the atmosphere, as it affects positively nodulation in legumes.

Crops, which are in the greatest need in sulfur are cruciferous, legumes, sugar beet and potatoes.

The need in sulfur depends on the level of nitrogenous nutrition: the higher is the level of nitrogen, the more sulfur plants absorb. In the spring, as a rule, sulfur content in the root zone of soil is low. This phenomenon is caused by high soil leaching regime because sulfates are highly mobile.

Lack of sulfur causes the destruction of chlorophyll; the leaves become pale and yellow. Upper leaves are first to experience the deficiency of sulfur. These symptoms are very similar to nitrogen deficiency.

Foliar application of ORAKUL® sulfur active contributes to improvement of nutrition. Sulfur, which is a compound of fertilizer, increases the percentage of protein and starch in wheat, oil content in sunflower, soybean and rapeseed. Sulfur in ORAKUL® sulfur active is in partially reduced form (polysulfides). This allows the plants to include it into the biosynthesis of amino acids and proteins with less energy expenses.

One more element, which is a part of ORAKUL® sulfur active – is sodium. Sodium ions play an important role in plants, they are an essential component of the cell sap.

This element provokes growing by stretching and performs a function of osmotic regulation, like potassium.
Sodium is essential for the substance transport through membranes (sugars and amino acids), it is included in the so-called sodium-potassium pump (Na+/K+). Therefore, containing sodium, ORAKUL® sulfur active has got a positive effect on the growth of most plants, especially sugar beet. It increases the sugar content, resistance to drought and increases leaf area.

Nitrogen in ORAKUL® sulfur active is in reactive form (amide), which enhances root development.

Microfertilizer is in the liquid state and is ready for immediate use. While observing the storage conditions it does not crystallize and can be applied in a wide range of temperatures, starting from +5 ° C.

ORAKUL® sulfur active can be used in any water. In hard water, the active substance does not interact with hardness salts (calcium and magnesium), so there is no danger of the calcium sulphate (gypsum) formation, which can lead to breakdown of spraying machinery.

ORAKUL® sulfur active has a significant physiological effect on plants, namely:
  • enhances root development;
  • improves plant development;
  • provokes growing by stretching and performs a function of osmotic regulation;
  • increases drought resistance by 26%, increases leaf area by 22%;
  • increases disease resistance of plants by 28%;
  • contributes to increase of protein and starch content in wheat, oil content in sunflower, soybeans and rapeseed.
It is recommended for use in conjunction with VIMPEL® plant growth stimulator .
Recommended technologies


CropsApplication stagesApplication rate, L/ha
Spiked cerealstillering
flag leaf
1.0 - 2.0
Corn3-5 leaves
7-8 leaves
1.0 - 3.0
Legumes3-5 ternate leaves
bud formation
1.0 - 3.0
Sunflower2-4 pairs of leaves
6-8 pairs of leaves
1.0 - 3.0
Rapeseed4-6 leaves
bud formation
1.0 - 3.0
Sugar and fodder beetclosure of leaves in rows
closure of leaves between rows
1.0 - 3.0
bud formation
1.0 - 3.0
Grapesbefore flowering
after flowering (fruit set)
2.0 - 4.0
Orchards and berriesbefore flowering
after flowering (fruit set)
2.0 - 4.0
Vegetables and other cropsintensive growth (in 2 weeks)1.0 - 3.0
1. INFORMATION FOR CONSUMERS: when applying the micronutrient fertilizer ORAKUL® sulfur active with the formulations, which acidify the aqueous solution (pH≤7), toxic hydrogen sulfide forms, which is firstly dangerous for field staff, and secondly leads to a slight decrease in the concentration of sulfur in the solution.

When mixing microfertilizers with metal-containing formulations (depending on the amount and type of the metal), the formation of a small amount of poorly water-soluble metal sulfides is possible. It should also be noted that finely dispersed sulfur may form sediment before the solution reaches the leaf surface. In this case, keep in mind that the mixing tool should be switched on during spraying.

The best option is to use the formulation ORAKUL® sulfur active and alkaline formulations as well as formulations that do not contain metal atoms simultaneously. In this case, when sprayed on a leaf surface, the aqueous solution containing sulfur microfertilizer begins to form active sulfur intensively and distributes evenly on a leaf surface.

The efficacy of the formulation and its ease of use depend on the application, storage and transportation conditions specified by the manufacturer.

2. COMPATIBILITY WITH OTHER FORMULATIONS: the micronutrient fertilizer is applied during the growing season either prophylactically or according to the diagnostics results based on the application regulations. It performs well in tank mixes with plant growth stimulator VIMPEL 2®. Recommended water temperature for a preparation of the working tank solution is 18 – 20 ºС (64.4 – 68 ºF). The micronutrient fertilizer is compatible as well with the pesticides that do not create an acidic environment in the spraying solution.


Warning! Prior to starting preparation of a tank mix, always check the formulations for compatibility!

For this purpose take a container, pour in it some water (which is to be used for the main application), add the tank mix components in proportions, based on the field rates of consumption. After closing the container, mix the contents by shaking it 10-15 times. Evaluate the tank mixture visually twice: immediately after mixing and after the mixture has settled (in about 30 minutes). Incompatibility of formulations is indicated by their separation into layers, residuum occurrence, flocculation of the mixture, formation of sludge that does not disperse.

Attention! It is possible to use the formulation in hard water due to the water softener in its composition. At the same time, if there is high concentration of hardness salts and significant amount of water, it is possible that after some time there will be a slight separation of hardness salts in the form of gypsum (СаSO4٠2H2O). In this case, the amount of sulfur in the solution is slightly reduced. These processes in no way affect the solution usability or cause the possibility of spraying equipment failure, as the formulation is finely dispersed. When forming a tank mixture in hard water, we recommend spraying with the mixing mode turned on. After application of the tank mix, it is necessary to rinse the tank with water to prevent the overgrowth of gypsum crystals.

If there are no compatibility problems, prepare the working solution just before spraying (direct application). Shake the product thoroughly in the original package and pour it directly into the sprayer tank, which is to be previously filled with water to 2/3 of its volume. After this with the mixing mode turned on add the components of the tank mixture in sequence stated in the recommendations and finish the process with filling the tank with water. Stirring of the mixture should be continued throughout the period of its preparation, as well as during application.

Application rates of the spraying solution: field crops — 70-300 L/ha, vegetables — 300-400 L/ha, fruit crops and grapes — 800-1000 L/ha.

4. MIXING ORDER OF SPRAYING SOLUTION COMPONENTS: when preparing the tank mixture, stick to the following sequence of components.

Tank mix
  • Water
  • ORAKUL® sulfur active
  • Plant growth regulators
  • Plant protection products
  • Other micronutrient fertilizers 
  • Water
Tank mix with UAN
  • Water
  • ORAKUL® sulfur active
  • Plant growth regulators
  • UAN according to the foliar application recommendations 3-12%+2,5% MgSO4٠7H2O (5% Decahydrate)
  • Plant protection products
  • Micronutrient fertilizers
  • Water
Tank mix with urea
  • Water
  • ORAKUL® sulfur active
  • Plant growth regulators
  • Urea according to the foliar application recommendations using other liquor (either into the sprayer tank or on the filter)
  • Plant protection products
  • Micronutrient fertilizers
  • Water
Attention! In preparing a tank mix, care should be taken to ensure that the mixing of the components (such as growth regulators, PPPs, microfertilizers, etc.) is conducted solely in water!

5. APPLICATION REQUIREMENTS: spraying should be done either early in the morning or in the evening, when the humidity level is high to avoid chemical leaf burn. The optimum air temperature is +10...+25 °С (50 — 77 ºF), wind speed up to 5 — 7 m/s depending on the sprayer type. It is not recommended carrying out spraying operations during foggy weather or in the presence of dew, which can lead to surface overflow of the solution and hence the reduction of the treatment efficiency. The spraying should be stopped 1.5 — 2 hours before the rain.

Attention! Use а freshly mixed solution. Do not store the prepared solution more than 24 hours.

6. STORAGE AND TRANSPORTATION: storage and transportation must be carried out in accordance with ГОСТ 14189 (National State Standard).

The formulation should be stored in a warehouse or storage building, designed specifically for this purpose. Storage area should be free of direct sunlight, moisture, pollution and mechanical damage to the container. Store at temperature above 0 ºС below +30 ºС (50 — 86 ºF), in the original closed package in an upright position, with the cap facing up in a cardboard box. Do not stack cardboard boxes more than 3 high.

Decrease of temperature below -20 ºС (-4 ºF) results in the product decrease of viscosity, the prolonged storage may cause sediment formation.

Any form of transport is possible while in covered vehicles. The use of open vehicles, which provide protection against precipitation, is allowed as well.

According to the conformity №255313/1 of the Ukrainian Cargo Bureau, State Research and Development Institute of the Merchant Marine of Ukraine of the Ministry of Infrastructure of Ukraine is not classified as dangerous cargo and is shipped as safe cargo under general conditions.

7. WHO CLASSIFICATION, TOXICITY: 4th toxicity class. The formulation is nontoxic, does not cause allergies, is environmentally friendly and absolutely harmless to pollinating insects.

8. PRECAUTIONS: keep away from children and animals. When carrying out spraying operations, use the appropriate and adjusted equipment, follow generally accepted safety standards.

9. FIRST AID INSTRUCTIONS: if the skin or eyes are contaminated with the preparation, flush them with water. If necessary, call a doctor.

10. CONTAINER AND LEFTOVER FORMULATION DISPOSAL: a container and leftover formulation do not require specific methods of disposal and neutralization.

11. STORAGE PERIOD: 5 years.

12. TECHNICAL REGULATION: ТУ У 20.1-24051976-003:2016.


14. VOLUME OF PACKAGES: 1 L, 5 L, 10 L.

15. HYDROGEN-ION INDICATOR (pH), units: 11.8 ± 0.5.

16. DENSITY, g/cm3: 1.331 ± 0.005.

17. COLOR (visually): dark orange.

18. ODOUR (organolept.): hydrogen sulphide.