Tower-granulated, fast-dissolving, balanced N-P-K for nursery and fruiting crops.
A balanced fertilizer (21-21-21) for the nursery and early growth of leafy vegetables and fruiting crops: steady seedlings without overstretching.
HERMEN Heyefei H.T. (NPK 21-21-21) is a balanced, high-tower-granulated fertilizer for propagation and fruiting crops. It dissolves quickly and suits broadcast, drench, drip or fertigation programs.
The balanced 1:1:1 ratio suits propagation, seedlings and mid-season growth before nutrition shifts toward flowering or fruit filling.
High-tower granules dissolve rapidly for broadcast, drench, micro-sprinkler and drip use. Always prepare a fully dissolved stock solution and flush lines routinely.
Developed for Taiwan’s climate, soils and cropping needs. See the full stage-by-stage guide for each crop:
Product information last updated: October 20, 2026
Heyefei H.T. is recommended at the following growth stages. Open a stage for the full guidance.
Seedling roots are fragile and easily damaged by high salt concentration. A fully soluble balanced formula that can be diluted to need lowers the risk of over-supplying any single element.
Full Leafy Vegetables guide →At seedling stage nutrient demand has not yet differentiated, so a balanced fully soluble formula works best. Avoid over-supplying any single element and watch dilution to protect fragile roots.
Full Melons & Fruiting Veg guide →Fruit number and shape are set during sizing, and abortion happens when nutrition cannot keep pace with load. Lead with phosphorus, support with nitrogen and potassium, and direct nutrition to the fruit rather than the canopy.
Recovery speed depends on how quickly the fertilizer can be absorbed. HERMEN Heyefei H.T. (NPK 21-21-21) is made by high-tower granulation and dissolves quickly in water, whether broadcast, fertigated or applied through drip. Its balanced ratio covers several possible deficiency causes at once when a fast response is needed.
Yellowing that starts on lower leaves and forms a V along the midrib usually indicates nitrogen deficiency; overall stalled growth with pale color may mean several elements are short simultaneously. With a 1:1:1 NPK balance and rapid dissolution, Heyefei H.T. works as a broad correction when a single deficiency cannot be identified immediately, with specialized formulas following once the crop responds.
Seedling roots are vulnerable to salt injury and root burn from over-concentrated fertilizer. Heyefei H.T. is highly soluble and can be diluted to requirement, avoiding localised concentration spikes, while its 1:1:1 balance does not over-weight any single element. Dilution rates should be adjusted to the growing medium and crop.
The decisive factors are how well it dissolves and its impurity content. Heyefei H.T. is produced by high-tower granulation and dissolves quickly in water, making it suitable for fertigation and drip. Combined with standard stock-tank preparation and routine line flushing, emitter clogging risk stays low.
A 1:1:1 ratio suits two situations: propagation and early growth, when nutrient demand has not yet differentiated; and mid-season, when broad supply is needed before the crop enters a specific bloom or fruit-filling phase. Heyefei H.T. serves as a base fertilizer through the cycle, with high-phosphorus or high-potassium formulas layered in at key stages.
Our agronomic team will tailor the best fertilization plan for your crop and field.
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