COA Fertigation


A unique combination of specifically the humic and fulvic compound ratio for soil/growth medium application.

Especially formulated for optimal support of plant nutrients supplied in the root zone.

Nitrogen (N)……56 g/kg N Sulphur (S)……….5 g/kg


  • COA Fertigation may be used in fertigation/irrigation or agricultural spraying in a standard application rate of between 1 – 4 ℓ per ha.
  • Application at the suggested rate should be applied
  • Under Cover farming, once every 7 to 14 days or as per specific crop programme
  • Can be used in combination with Complex Calsus, CCM, Complex Calsul, Complex Super Ca.
SKU: (B5089) 25L Category:


These components have the following functions and attributes:

Organic acids (fulvic, humic)

  • Stabilizes plant nutrients that have the potential to leach or lock-up in insoluble complexes. Highly leachable urea becomes a stable urea-humate. DAP/MAP, which can deliver up to less than one third of their soluble phosphate before being “locked up” by Ca or Mg depending on the ph. A stable phosphate-fulvate. It can now deliver all that potential phosphate to the crop. The most leachable trace mineral, boron, becomes a stable – boron-humate – with the simple addition of organic acids.
  • Organic acids improves soil structure. Humic acid modifies the permeability, porosity, water retaining capacity, absorption characteristics, surface area and cation exchange reactions. These are the constituents of the “carbon plate” a plant “eat” out of. These are all features relating to improved fertility, production and profitability for farmers.
  • Humic acid magnifies fertilizer inputs. The magnification involves a phenomenon called cell sensitization, where the cell membrane becomes more permeable, allowing about one third more nutrition to enter the cell. Your fertilizers can become over 30% more productive, or you can boost the uptake of anything with which you combine hamates.
  • Humic acid is not a man-made concoction, it is, in fact, the main natural acid found in humus in, soil or compost. It offers all of the benefits of humus, but in a more concentrated form. For example, humus holds almost its own weight in water but humic acid holds seven times its own weight, making it a primary drought management tool.
  • Humic acid increases crop resilience. This remarkable substance can deactivate enzymes produced by pathogens that would otherwise compromise the plant’s immune system. Disease organisms produce enzymes to shut down plant immunity and allow them easy access to do their dirty work. Hamates bind to these enzymes to prevent their entry into the plant. This is why high humus soils, which naturally contain higher levels of humic acid, suffer less disease problems than soils lacking in humus.
  • Humic acid is a powerful bio-fertilizer in its own right. It increases root growth and improves photosynthetic response, while increasing flowering and fruit/seed filling. It is also a powerful stimulant of mycorrhizal fungi, which offer a profound range of plant health benefits.


Amino acids

Amino acids is the building block for enzymes and hormones. They contain NH2 type Nitrogen to assists redox reactions for the metabolic systems in the plant i.e. Krebbs process.

“Sugary” amino acids

This potentially energy filled NH2 type Nitrogen is an essential food source for reducing microorganisms and other nutrient chelating agent for easier uptake.

Nowhere in nature do “organic acids” exist isolated or by itself. Compost or manure does not contain only one component of the organic acid grouping. The use of a single component as supplement for growing plants is therefore not practicable to ensure optimal results.

The combination of these different ingredients ensures an excellent environment for the development of roots and vigorous growth in seedlings. Young roots can be damaged easily by mechanical stress or environmental conditions. This damage can be irreversible and have an influence on plant performance and yield in latter growth stages

It is therefore important to nurture the plant and ensure an optimal environment for the development of the root system in the crucial period from germination to the first 6-9 weeks.

It is also important for perennials from the first budding to flowering where there is good regrowth of fresh hair roots for efficient Ca uptake for continuous optimal metabolical performance through the growth season. This is also an integral part of Integrated Plant Energy Management (IPEM)

Additional information

Available Volumes

25 Liters, 5 Liter


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