Practical answers for professional growers.

CANNA Coco is designed around cultivation in coco substrates, while CANNA Substra is designed for inert substrates such as rockwool where irrigation and nutrient delivery can be controlled precisely.

The right system depends on your substrate, irrigation setup, operational preferences and desired level of root-zone control.

CANNA nutrition programs are designed around coordinated base nutrition and supporting products. Product selection should be considered alongside substrate, crop stage, irrigation strategy and plant response.

Some concentrated mineral nutrients are separated into two components to keep certain mineral elements stable before dilution. Both components are used as part of the intended base nutrient program.

Feeding schedules should be used as practical references rather than rigid formulas. Cultivar, environment, irrigation, substrate and plant response should all be considered.

Not necessarily. Plants require adequate mineral nutrition, but increasing nutrient concentration above what the crop can use does not automatically increase yield or quality.

EC provides an indication of nutrient concentration, while pH influences nutrient availability in the root zone. Both are useful when interpreted with irrigation, substrate behavior, crop stage and plant response.

Not necessarily. Higher EC means a higher concentration of dissolved minerals in the feed solution; it should not be treated as a direct THC target.

RHIZOTONIC is positioned within the cultivation program for root development and early-plant establishment.

PK 13/14 provides concentrated phosphorus and potassium support during the appropriate generative stage of the cultivation program.

CANNABOOST is a plant-performance product intended to complement the flowering program.

No. GACP involves the facility’s overall cultivation practices, documentation, traceability, procedures and quality systems. Nutrient selection is only one part of a broader cultivation program.

No. Product registration and facility GACP compliance are separate concepts. Registered inputs can form part of professional input management, but do not independently establish GACP compliance.

Adequate nutrition supports growth and yield potential, but final production depends on genetics, lighting, environment, irrigation, substrate, crop duration and root-zone conditions. More fertilizer does not automatically produce more yield.

Nutrition influences growth and crop development, but increasing fertilizer concentration alone does not reliably increase THC. Cannabinoid expression is influenced strongly by genetics and the wider cultivation environment.

Nutrition forms part of the cultivation environment, but terpene expression also depends on genetics, light, climate, crop stage, harvest timing and post-harvest handling.

Yes. Poor root-zone conditions can interfere with normal water and nutrient uptake and may create deficiency-like symptoms.

The term is commonly used when nutrients may be present but plant uptake is impaired. The underlying cause can involve pH, EC, irrigation, root health or nutrient imbalance.

Check local irrigation, emitter performance, substrate condition and root health before changing the entire reservoir.

No. The need depends on source water, substrate preparation, base nutrition and crop conditions. Supplementation should have a clear reason.

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Visit the Grow Guides page for system-specific feeding and cultivation guidance.

Visit the Knowledge page for technical cultivation knowledge.