Comparing Two Coir Based Substrates and Fertilizer Rates to Maximize Cannabis Growth
Comparing Two Coir Based Substrates and Fertilizer Rates to Maximize Cannabis Growth
Comparing Two Coir Based Substrates and Fertilizer Rates to Maximize Cannabis Growth
Professor DeBacco
Research Article
Caplan, D., Dixon, M., & Zheng, Y. (2017). Optimal rate of organic fertilizer during the flowering stage for cannabis grown in two coir-based substrates. HortScience, 52(12), 1796-1803.
https://journals.ashs.org/hortsci/view/journals/hortsci/52/12/article-p1796.xml
Physical and Chemical Properties
U1-HP = ABcann UNIMIX 1-HP
U1 = ABcann UNIMIX 1
ABcann Medicinals Inc., Napanee, Canada
Response of Cannabis Yield to Fertilizer
Fertilizer = Nutri Plus Organic Grow liquid organic fertilizer (4.0N–1.3P–1.7K)
Nutri Plus Grow; EZ-GRO Inc., Kingston, ON, Canada)
Relationship of THC in Dry Flower to Fertilizer
More fertilizer is not better, it will reduce floral dry weight and also THC %
Goal is to fertilizer with the “optimum” level, not excessive.
Researcher Conclusions
The optimal fertilizer rate was that supplying about 389 mg N/L, for Nutri Plus Organic Grow liquid organic fertilizer (4.0N–1.3P–1.7K) in the vegetative growth stage of cannabis using coir-based organic substrates.
Link to Lecture Slides: https://drive.google.com/file/d/1SIXdhFgNtgTknyukKuXpCtIOFTMymiHt/view?usp=sharing
420 Magazine Source Content by Slide Title:
Title: Comparing Two Coir Based Substrates and Fertilizer Rates to Maximize Cannabis Growth
https://www.420magazine.com/community/gallery/black-sugar-comparative.1763822/
Researcher Conclusions
https://www.420magazine.com/community/gallery/sour-tangie-under-mars-hydro-tsl-2000.1821591/
*Due to the description character limit the full work cited for “Comparing Two Coir Based Substrates and Fertilizer Rates to Maximize Cannabis Growth” can be viewed at… https://drive.google.com/file/d/18L-k86CZG5BB8GapOJalKYs0nvfYyvwN/view?usp=sharing
Would this study and its findings apply in new england as well? Or do adjustments to nutrients need to be tweaked?
Hi just found ur channel prof, love ur work thanks 4 sharing billy uk
Just a fyi for anyone interested, Kis organics episode 57 is an interview with one of the authors of this study.
Less is more when it comes to using Fertilizer , in Ux Less: is much better than More:
Awesome, I am just starting to try my hand at organic coco coir growing, coming from a DWC background. Reading this study should be worthwhile. 🙂 Thanks for sharing
I’ve stumbled upon a gold mine of information, love your channel. I am curious to know if this study was done with a fixed amount DLI, and if they tested increasing it at the higher nutrient levels. Overfeeding should be clarified so people understand the amount of nutrients they use should match the DLI the plants receive. Cannabis can eat as much light as we can give it, as long as the rest of the parameters are in check to keep up. At least that is my understanding.
I’m so lucky to have found your channel. Outstanding work. Thank you.