
10 l
Systemic HGA Micronutrient Foliar Fertilisers
10 l
5.5% zinc (Zn) complexed with heptagluconic acid (HGA), fully water-soluble
Hepta® Zn contains zinc complexed with biodegradable and stable heptagluconic acid (HGA), delivering a highly bioavailable and environmentally compatible source of zinc. Its fully water-soluble formulation ensures uniform application via fertigation or foliar spraying, with no risk of precipitation or nutrient loss.
The product features a systemic mode of action, enabling rapid absorption through both leaves and roots and efficient translocation within the plant. This supports fast correction of zinc deficiency, ensures uniform physiological activity, and promotes balanced growth and development throughout all growth stages.
Supplied in an easily assimilable, bioactive form, Hepta® Zn supports key enzymatic and hormonal processes, including auxin synthesis, contributing to proper root system development and improved uptake of water and nutrients.
Hepta® Zn also enhances tolerance to abiotic stress, particularly low temperatures and drought, while supporting flowering, reproductive development, and yield formation.
The product is characterised by a crop-safe, gentle formulation at an effective concentration, supporting plant vigour, stress resilience, yield potential, and overall crop quality.
Highly bioavailable zinc, 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
Hepta® Zn is applied when crops require a fast and highly available zinc source to ensure balanced growth and physiological stability, particularly during early development, intensive growth, flowering, yield formation, and periods of abiotic stress such as cold or drought.
The product is suitable for cereals (wheat, barley, maize), oilseed crops (rapeseed), field crops (sugar beet, soybean), vegetables (onion, bean, lettuce), fruit crops (apple, grapevine), and ornamental plants. Thanks to systemic zinc uptake, Hepta® Zn supports zinc-dependent enzymatic and hormonal processes, strong root development, stress tolerance, and consistent yield and crop quality in foliar and fertigation programmes.

| Crops | Dosage [l/ha] | Water amount [l/ha] | Number of treatments | Application |
|---|---|---|---|---|
| All crops | 1–3 | 200–600 | 1–3 | After the appearance of the first symptoms of zinc deficiency |
| Cereals | 1–2 | 200–300 | 1 | In autumn: from the 3–leaf stage to the 2–tiller stage |
| 1–2 | 200–300 | 1 | In spring: from the resumption of growth to the heading stage | |
| Oilseed rape | 1–2 | 200–300 | 1 | In autumn: from the 4–8 leaf stage |
| 1–2 | 200–300 | 2 | In spring: from the green bud stage to the pod set stage | |
| Maize | 1–2 | 200–300 | 2–3 | From the 3–leaf stage to the end of the technically feasible application period |
| Potatoes | 1–2 | 200–300 | 1 | At full emergence stage |
| 1–3 | 300–400 | 1 | From the budding stage to the berry formation stage | |
| Sugar beet | 1–3 | 200–300 | 1–3 | From the 4–leaf stage to row closure |
| Legumes | 1–3 | 200–300 | 1–2 | From full emergence to the pod formation stage |
| Sunflower | 1–3 | 200–400 | 2 | First application at the 4–6 leaf stage, second before the end of the technically feasible application period |
| Vegetables | 1–3 | 400–600 | 2–4 | After seedling establishment; during the period of greater leaf area |
| Pome fruit trees Stone fruit trees | 2–4 | 500–1000 | 2–4 | From the pink bud stage to the fruit ripening stage |
| 2–4 | 500–1000 | 2–4 | From the beginning of fruit set to the ripening stage | |
| Soft fruit bushes | 2–4 | 300–600 | 2–3 | From the budding stage to the beginning of fruit ripening |
| Grassland | 2–3 | 200–300 | 2–5 | From the onset of spring growth until mid-September; 7–10 days after cutting/grazing |