Hepta^® Cu

Simple inorganic mineral micronutrient fertiliser

in solution containing 5% copper (Cu)

10 l
600 l

5% copper (Cu) complexed with heptagluconic acid (HGA), fully water-soluble

Key benefits

Hepta® Cu contains copper complexed with biodegradable and stable heptagluconic acid (HGA), delivering a highly bioavailable and environmentally compatible source of copper. Its fully water-soluble formulation ensures uniform application via fertigation or foliar spraying, with reduced wash-off from the plant surface.

The product features a systemic mode of action, enabling rapid absorption through leaves and efficient translocation within the plant. This supports uniform physiological activity and ensures effective utilisation of copper in plant metabolic processes.

Supplied in an easily assimilable, bioactive form, Hepta® Cu supports key enzymatic processes, particularly those involved in phytoalexin production and lignin synthesis, contributing to strengthened plant tissues and enhanced natural defence mechanisms. Hepta® Cu also supports plant health by limiting the development of pathogenic infection.

Hepta® Cu is characterised by a crop-safe, gentle and environmentally friendly formulation at an effective concentration, supporting plant vigour, resilience, and overall crop quality.

Performance highlights

Highly bioavailable copper, complexed with biodegradable heptagluconic acid (HGA)

Ensures rapid correction of nutrient deficiencies, supporting balanced plant growth and development

Systemic mode of action enabling efficient uptake and translocation throughout the entire plant

Crop-safe, gentle formulation at an effective concentration

Fully water-soluble and easy to apply via foliar spraying

Technology in practice

Hepta® Cu is used where precise copper management is required to support stable plant metabolism and hybrid nutrition–protection strategies. The product is suitable for a wide range of crops, including cereals, oilseed rape, maize, sugar beet, vegetables, fruit crops, and ornamental plants.

Thanks to systemic uptake, Hepta® Cu ensures efficient copper delivery for key enzymatic processes, contributing to strengthened plant structure, enhanced stress tolerance, and the activation of natural defence mechanisms. This makes it an effective component of integrated and hybrid crop management programmes.

Application recommendations

Crops	Dosage [l/ha]	Water amount [l/ha]	Number of treatments	Application
Cereals	2 2–3	200–300	1 2	In autumn: from the 3-leaf stage until the end of autumn vegetation. In spring: from the onset of vegetation to the wax maturity stage (BBCH 80).
Rapeseed	2 2–3	200–300	1 2	In autumn: from the 4-leaf stage until the end of autumn vegetation. In spring: from the onset of vegetation to the ripening stage (BBCH 85).
Corn	2 2–3	200–300	1 1	At the 4–5 leaf stage. From the 8-leaf stage until the latest technically feasible application timing.
Potatoes	2 2–3	200–300 300-400	2 2	From full emergence. Until the end of berry formation (BBCH 79).
Sugar beets	2–3	200–300	2–3	From the stage of inter-row closure (BBCH 39) until harvest.
Legumes	1.5–2	200–300	1–2	From the 4–6 leaf stage to the pod formation stage (BBCH 79).
Sunflower	2–3	200–300	1–2	From the 4-leaf stage until the latest technically feasible application timing.
Vegetables	2–3 3–4	200-300 400–600	2 2	Every 14–21 days from emergence or transplant establishment. Up to 14 days before harvest.
Fruit trees and shrubs	3–4	500–1000	3–4	From bud formation to fruit set. After harvesting the fruit.
Grasslands	2–3	200–400	1–3	From the onset of spring regrowth until mid-September, 7–10 days after cutting or grazing.

Hepta® Cu