SUNFERT DUO is a basal, starter, foliar and side/top dress fertilizer. It is suitable for all types of soils and all climate zones during the entire growing season as well as for crops with high Nitrogen and Sulphur demand. It is primarily intended for the fertilization of Brassicaceae (cabbage, rapeseeds, radish, mustard), garlic, onion, buckwheat, pea, alfalfa, blueberry and crops which prefer nitrogen in ammonium form to nitrate form (potato, sugar beet, forage). In view of the applying high amount of nitrogen, cereals, winter and summer crops require to receive sufficient Sulphur. Frequency of foliar application is about 1-3 times, but it depends on crop itself and its growing season. SUNFERT DUO can be mixed into pesticide working solutions and other agrochemicals, not exceeding concentration and doses of fertilizer and before mixing them up it is required to run the compatibility test. SUNFERT DUO may be blended with the most widely used mineral fertilizers prematurely or just prior to applying. 

THE BEST COMPATIBILITY WITH NBPT

SUNFERT DUO is perfectly compatible with NBPT. That’s why it is the best choice on the European Union market for blending with NBPT-treated urea in sense to ensure the maximum efficiency of urease inhibitor and prevent the nitrogen losses when applying such blend for all crops.

Comparison studies have demonstrated the highest preservation of the NBPT during storage and the lowest nitrogen losses after soil application of blend.

SUNFERT DUO with NBPT-treated urea ensures the best result for preservation of nitrogen in the soil comparing to competition`s products on the market. Moreover, the loss of Nitrogen from soil is even slightly lower with SUNFERT DUO than NBPT-treated urea alone. This is a unique advantage of our product for the most effective nitrogen fertilization.

HIGH TECHNOLOGICAL EFFICIENCY

A set of advantages makes SUNFERT DUO one of the most technologically advanced products for use on the European Union market:

- The granule size and granulometric composition ensure an even distribution of SUNFERT DUO with a spreading width up to 36 m, which is proven by the results of AMAZONE test (test ID: 583023150).

- SUNFERT DUO may be blended with the most widely used mineral fertilizers in advance or just prior to applying. The results of the trials show that blends with SUNFERT DUO do not segregate during transportation in big bags and spreading.

- The blending of SUNFERT DUO with granular urea creates the optimal composition, which ensures effective and uniform application of the blend. Specialists from AMAZONE have created settings for uniform distribution of such blend by all their main machine types with width 3336 m depending on spreader type (test ID: 583023212).

- SUNFERT DUO is suitable for all types of soils and all crops, primarily intended for crops which prefer Nitrogen in Ammonium vs Nitrate form and for plants with high Sulphur demand. It can be used in a wide range of climatic conditions and different periods of plants’ vegetation. This is a significant advantage vs Urea or Ammonium Nitrate.

EFFECTIVE

- provides effective nitrogen-sulphur plant nutrition, increases crop yield and boosts of resistance to environmental stresses. 

- the optimum choice for feeding high protein crops that are sensitive to Sulphur deficiency.

- increases the solubility of nutrients, those are difficult to access, by lowering the pH of the soil locally for a short period of time without altering the reaction of the soil solution as a whole.

- In foliar applications, SUNFERT DUO is rapidly absorbed by the plant through the leaf surface and is immediately involved in the plant's metabolism.

TECHNICAL

- perfectly compatible with urease inhibitor NBPT and can be used safely and efficiently for production of fertilizers blends containing NBPT treated urea.

- granulometric composition and high hardness of granules ensure good applicability for making blended fertilizers;

- able to bind iron and calcium cations in aqueous solutions, which significantly increases the efficacy of pesticides, especially herbicides based on 2,4-0, glyphosate and glufosinate, when used in tank-mixes.

- Blend of SUNFERT DUO and urea provides uniform spreading up to 36 m width

SAFE FOR PLANTS AND FRIENDLY FOR ENVIRONMENT

- The prolonged release of Nitrogen prevents the concentration of ammonia in the immediate vicinity of young plants, reducing the toxicity of the fertilizer in the event of a lack of moisture.

- Has a lower level of greenhouse gas emissions compared to other Nitrogen fertilizers due to the low mobility of Nitrogen.

- Can inhibit the activity of Nitrogen metabolism enzymes, particularly urease and nitrifying bacteria which significantly reduces nitrogen losses due to leaching and volatilization.

Physiological effects for plants and soils

Nitrogen and Sulphur are key links in the chain of amino acids synthesis. The synergistic interaction of these nutrients activates protein metabolism in plants, ensures their active development, increases resistance to abiotic stresses, reduces nitrate levels and improves the quality of future crops. 

Nitrogen in ammonium form enters to the plant by active transport, while the positive charge of Ammonium promotes the rapid uptake of anions: phosphates, sulphates, borates, etc.

Sulphur in the form of anionic-sulphate can bind amides, preventing Nitrogen losses and increasing the biological value of the fertilizer. 

Ammonium activates the decomposition of plant residues by microorganisms, increasing the content of organic matter in the soil and promoting the transformation and bioavailability of other nutrients. After mineralization, the Nitrogen immobilized by the microflora becomes available for plant uptake.