Early identification and prevention of nutrient deficiencies is critical to producing consistent, high-quality cannabis. Using a fertility program designed specifically for cannabis can reduce risk and improve crop performance from transplant through flowering.
Nitrogen deficiency is commonly observed during the vegetative phase, usually due to feeding at insufficient levels. Symptoms begin as progressive yellowing of older, lower leaves as nitrogen is mobilized to support new growth.
Magnesium deficiency primarily manifests during the flowering phase but can also occur in the vegetative phase when nutrient ratios are imbalanced or when magnesium is not adequately supplied. Symptoms appear as interveinal chlorosis on middle-aged leaves.
Calcium deficiency is also more common in the flowering stage but can start during the vegetative phase. Much like magnesium, the common cause is nutrient imbalance within the fertilizer program. Symptoms begin in the older leaves as spots with sharp outlines that appear along the leaf margins.
If you believe you are experiencing a cannabis nutrient deficiency, it is best to send samples of foliar tissue demonstrating symptoms for testing. A foliar nutrient analysis will be able to confirm your suspicions and ensure that you are taking the proper corrective action.
The Plantex MJ™ line is a water-soluble cannabis fertilizer program designed to prevent these common deficiencies by aligning nutrient ratios with cannabis growth demands. Plantex MJ™ Boost 15-30-15 is designed for transplants and root establishment. While Plantex MJ™ Grow 12-8-26 is designed for a healthy vegetative growth phase. Plantex MJ™ Cal Kick provides a reliable, high-calcium solution with a complete micronutrient package, and can be used throughout vegetative and flowering stages for strong plant structure. Plantex MJ™ Bloom 10-30-20 utilizes higher levels of phosphorus and potassium to promote vigorous flowering, and support dense bud set and fill.
Even with premium fertilizers, nutrient availability can be compromised by improper media pH, resulting in nutrient lock-out. Regular monitoring of substrate pH, EC, and runoff remains essential for maximizing fertilizer efficiency.
By utilizing a cannabis-specific fertility program like Plantex MJ™ and becoming familiar with deficiency symptoms, growers can improve consistency and set crops up for stronger flowering performance and higher returns. Plantex fertilizers are made from the finest raw ingredients in the world, tested constantly for purity to ensure 100% solubility to help you improve yields. Ask your Griffin sales rep for more information today.