Ammonium Sulphate Nitrate

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Sulphur is a necessary nutrient for a full nutrition of crops.

It is an important element of plants, is involved in most metabolic processes, and significantly affects germination and production.

Its activity inside the plant is closely linked to Nitrogen.

This is why lack of one of these two elements reduces the utilization of Nitrogen by the plants, suppresses protein synthesis, and halts growth. The main source of Sulfur supply to crops are the quantities returned from the atmosphere through rainfall.

Sulphur (S) was not given much importance in the past, which along with continuously diminishing concentration in the atmosphere has led to its supply being nearly exhausted, which has negatively affected soil fertility and the productivity of crops.

Contemporary agricultural research and practice has highlighted its significant contribution to the full nutrition of crops, and the importance of targeted fertilizing of crops with Sulfur as a requirement for increased yield and the production of quality products.


For more information on Nitrogen and its significance


Nitrogen, Water, Carbon, Oxygen, and Hydrogen are fundamental nutrients for life in general and every living being in nature. In the case of plants, Nitrogen is more involved than any other nutrient in the formation of the plant body and the vital functions of development and production. As a component of chlorophyll, it is involved in the process of photosynthesis and the production of carbohydrates, which form the base of the food chain and the only reason why humans developed agriculture. As a structural element of amino acids, proteins and nucleic acids, Nitrogen has a pivotal role in energy conversions, plant reproduction throughout time, and in the growth and yield of crops. Lack of Nitrogen leads to a less fertile soil, stunted growth, premature decay of the plants, reduced production, and poorer quality. Its overabundance favors the production of plants which are vulnerable to diseases and environmental conditions, delays flowering, reduces fruit setting, delays ripening, and harms production. Sufficient supply and the rational management of Nitrogen are the most important factors for the health and productivity of crops in contemporary agriculture.

 Sources of Nitrogen for plants

Nitrogen is the most abundant atmospheric gas and it occupies 78% of the total volume of the atmosphere. It ranges from 0,05 to 0,4% on the surface layer of the ground and it is found nearly in its entirety in organic form. Despite the fact that crops develop in an environment with an abundance of Nitrogen, plants – with the exception of legumes – cannot absorb and utilize atmospheric Nitrogen. They cannot utilize the organic Nitrogen in the soil unless it has already been broken down and converted to absorbable forms. This is why lack of Nitrogen is the most common nutritional deficiency in crops and the main factor preventing high yields. The rational management of Nitrogen and sufficient supply of it to the crops has been a basic pursuit of agricultural practice throughout time, has been a catalyst in the development of cropping systems, and is directly linked to the development of agriculture from ancient times to this day.

 Absorbance of Νitrogen

Plants absorb the Nitrogen in the soil in Nitric (ΝΟ3-Ν) form and in Ammoniacal (ΝΗ4-Ν) form. Ammoniacal Nitrogen forms strong bonds with the soil and is absorbed by the roots of plants as they grow and come in contact with soil particles. Nitric Nitrogen moves freely in the soil, approaches the roots, and is absorbed by plants through the water in the soil. It is crucial that both forms of Nitrogen are present in the soil for crops to have a healthy development, for increased yield, and for a better production quality.

Fertammon 26 26-0-0 (29)

Fertammon 26 is a high quality Nitrogen fertilizer which has been designed for the efficient nutrition of crops with Nitrogen and Sulphur. It combines a specialized ratio (3:1) of the Ammoniacal (NH4) and Nitric (NO3) forms of Nitrogen with high Sulphur content in its granule.

Nitric Nitrogen is promptly absorbed by the roots and covers the short-term needs of development, while Ammoniacal Nitrogen is retained in the ground and extends the supply to the crop for a longer period of time.

The high Sulphur content (S) contributes to the absorption of Ammoniacal Nitrogen, has a direct impact on the growth of the root system, and at the same time participates in the synthesis of proteins and aromatic compounds which improve the qualitative and organoleptic characteristics of the production.

The excellent granulometry and specially designed composition of Fertammon 26 perfectly meets the needs of field crops in all types of soils.

Nitrogen (Ν) Ammoniacal nitrogen (NH4) Nitric Nitrogen(NO3) Sulphur (SO3) Iron (FeSO4) Zinc (Zn)

Fertammon special 25-0-0 (29) + 0,5Zn +0,5FeSO4

High-quality water-soluble* Ammonium Sulphate Nitrate with Iron and Zinc. Its specialized mode of production, the nutrient ratio in the granule, and the synergism between them perfectly meet the needs of the crop at all the stages of development.

Nitric Nitrogen is promptly absorbed by the roots and provides the required energy for the rapid growth of the roots and the above-ground part of the plants, while the Ammoniacal spreads the nutrition of the crop over a longer period of time. The Sulphur (S) contained is taken in by the plants, immediately affects the growth of the root system, and it increases the absorption of Nitrogen by the crop when entering the metabolism.

Iron (Fe) prevents the development of chlorosis in new leaves. It serves as a catalyst for the production of chlorophyll and increased photosynthesis, while also participating in a number of important metabolic processes inside the plant.

Zinc (Zn) actively participates in the synthesis of auxin, boosts sprouting and flowering, and increases the number and size of the fruits.

Its elemental composition, high solubility, and excellent granulometry point to Fertammon special as the best option for top dressing fertilization of vines, olive, citrus and other fruit trees, and vegetables in all farming systems (outdoor-greenhouse).

* Through a specialized production process, the Fertammon special granules are fully water-soluble, which allows them to be used in fertilizing conducted both with a fertilizer distributor, as well as through fertigation systems.


Nitrogen (Ν) Ammoniacal nitrogen (NH4) Nitric Nitrogen(NO3) Sulphur (SO3) Iron (FeSO4) Zinc (Zn)

Fertammon 26 solub. 26-0-0 (29)

Fertammon 26 solub is innovative Nitrogen fertilizer, fully water-soluble, which has been developed to ideally meet the needs of crops to Nitrogen and Sulphur, in all critical stages of plant growth.

With a special ratio between Ammoniacal and Nitric Nitrogen (3:1), it ensures the adequate and balanced supply of the crop with fully assimilable Nitrogen, both in the early stages for the formation of robust sprouting and rich flowering, and in the later for the growth of fruits.

The high content of Sulphur (S) creates synergies with Nitrogen and maximizes its absorption and utilization by the crop, improving the efficiency of top-dressing fertilization and increasing the number of proteins produced used to create shoots, leaves and growing fruits.

It is an ideal product for alkaline soils, as its acidic character, solubilizes Phosphorus and Trace Elements of the soil and increases their availability for the cultivation, contributing significantly to increased production.

The fully water-soluble granules of Fertammon 26 solub, allow the product to be used in fertilizing applications, both with a fertilizer distributor, as well as through fertigation systems.

Its elemental composition, excellent granulometry and high solubility, make Fertammon 26 solub the most suitable fertilizer for targeted nutrition of all crops, in all soil types.

Nitrogen (Ν) Ammoniacal nitrogen (NH4) Nitric Nitrogen(NO3) Sulphur (SO3) Iron (FeSO4) Zinc (Zn)

Fertammon® are high-quality fertilizers which have been developed in order to supply the crops efficiently with Nitrogen and Sulphur..

They combine the absorbable by plants forms of Nitrogen and Sulfur in an ideal ratio in their granule. Nitric Nitrogen is immediately absorbed by the roots, while Ammoniacal Nitrogen is retained in the soil and sufficiently supplies crops for a prolonged period of time, covering their needs during the later stages of their cycle.

The Sulfur contained is absorbed by plants and it contributes to the development of the root system, as well as increases the efficiency of Nitrogen when it enters the metabolism.

In alkaline soils which exhibit problems of low availability of Phosphorus and Trace Elements, the presence of Sulfur increases the acidity in the micro-environment of the granules, which leads to these elements breaking down and becoming more available to crops.

Excellent granulometry guarantees the uniform dispersion of nutrients in the field, while its special formula ensures a sufficient supply of Nitrogen and Sulphur for all crops and all types of soil.

Fertammon® 26 26-0-0 (28) covers ideally the needs of extensive crops, while Fertammon® special 25-0-0 (28) +0,5Zn +0,5FeSO4 has been specifically adapted for the demands of arboriculture, viticulture and horticulture.