As the cannabis sector continues to mature, optimising every stage of cultivation becomes increasingly important for producers aiming to enhance profitability. Cultivators are continually seeking methods to increase yield without compromising the quality of their product. Kenneth Morrow, a cannabis industry expert, recently outlined 15 strategies that can help achieve these goals, as reported by Cannabis Business Times.
Optimising Environmental Factors for Cannabis Cultivation
Controlling the growing environment is fundamental to maximising cannabis yield and quality. Small adjustments can lead to significant improvements.
- Under-Canopy Lighting: While not a new concept, modern LED lighting systems are specifically designed for under-canopy use. Placing lights precisely where needed can significantly improve the development of lower plant material, leading to fuller, denser buds and potentially increasing yield by as much as 30% in some applications, according to Morrow.
- Vertical/Multi-Level Horticulture: For indoor or controlled environment cannabis cultivation, expanding vertically is a logical approach to increase plant density and overall yield within a given footprint.
- Water Oxygenation: Beyond CO2 requirements, the oxygen levels in the root zone are crucial for nutrient and water absorption. Ensuring proper oxygenation in irrigation systems supports healthier, more vigorous plant growth.
- Proper CO2 Levels: Cannabis plants benefit from a CO2-rich environment, which enhances photosynthesis and encourages rapid growth. While ambient levels are around 425 ppm, enrichment to 800-1,500 ppm, depending on the growth stage, can increase photosynthetic efficiency.
- Proper pH Levels: Monitoring the pH of both irrigation water and wastewater provides critical insights into nutrient uptake and potential buildup. Maintaining a target 10% nutrient runoff rate helps prevent nutrient lockout, ensuring plants can access essential elements.
- Optimise Light Intensity and Spectrum: Research indicates that different cannabis cultivars have specific spectral preferences. Utilising dimmable fixtures with adjustable spectral output allows growers to tailor lighting to the plant’s needs throughout its lifecycle, maximising light use efficiency and biomass production.
Refining Cultivation Techniques
Beyond environmental controls, specific agronomic practices can directly influence the quantity and quality of cannabis harvests.
- Nutrient Refinement: Experimenting with nutrient formulations tailored to cannabis cultivars, combined with supplemental beneficial amendments, can help growers find the optimal nutrient delivery regimen. Accurate record-keeping of yield data for each cultivar is essential for this refinement.
- Irrigation Strategy/Crop Steering: By precisely controlling environmental and root zone parameters, growers can steer a plant to focus on a specific stage of growth, making precise adjustments throughout its lifecycle to exploit plant hormonal responses.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Hemp Gazette does not provide medical recommendations, diagnoses, or treatment plans. Always consult a qualified healthcare practitioner before making any decisions regarding your health or any medical condition. Statements concerning the therapeutic uses of hemp, cannabis, or cannabinoid-derived products have not been evaluated by Australia’s Therapeutic Goods Administration (TGA). Medicinal cannabis products in Australia are accessed via prescription pathways under TGA regulation.
