Courtesy of Lift Magazine
Having covered soil last week, it seems only appropriate that we talk about the topic of nutrients and how to use them properly. Nutrients are fairly simple to use, but too much, too little, or a pH that is too high or too low, may impact the overall health of your cannabis plants negatively.
You will need a pH and a PPM meter to correctly measure your nutrients. Both can be purchased from your hydroponic store and are vitally important to growing big buds. They were on the list of items in the first post. Do not buy nutrients until you own both these meters!
Cannabis plants are generally really hardy weeds. However, when the pH is way off (or the plant is a finicky one) you may nutrient burn them. When growing in soil, an ideal pH for most cannabis plants is between 6.0 and 6.5. Note: pH balance may be slightly different depending on nutrients and variety, but this is a great general range to keep your pH in.
To maintain this range, pH up and pH down may be needed. These are pretty much as described, but it’s very important to use them sparingly. A capful is all that is needed when balancing out your reservoir.
Make sure your nutrients are well mixed in before measuring either PPM or pH. Some growers will mix their nutrients and then leave them overnight for settling. The following day they’ll review the PPM and pH readings and adjust as needed.
Speaking of reviewing, I can’t stress enough the need for a logbook for new growers. It’s super easy to write down the PPM and pH readings and the date. A logbook can be easily referred to if you experience problems, and most importantly for dialing in a medical cannabis variety.
Feed feed water?
How often we use nutrients in our feeding cycle is important to maintaining cannabis plant health. A simple, easy to follow feeding cycle is ‘feed, feed, water’ or FFW.
Monitor the plant to determine how well it is uptaking nutrients. We’ll write about nutrient issues in later blog post, but early signs are leaf texture. Are leaves soft? I find leaves become a little leathery when the plant begins to receive too many nutrients. Begin watching and touch your cannabis plant’s leaves to begin developing an eye for nutrient uptake.
Two part formula
When using a two part nutrient formula, remember, add A first then add B. Mixups happen, especially if you’re not paying attention. A two part mix is designed to be activated by the second part. If you don’t add A first then your nutrient mix won’t be properly created as the manufacturer intended.
Base plus other goodness
A two part formula is a great start for most novice cannabis growers. Many manufacturers have add ons to their base mix that are to be used at certain periods in a plant’s growth. Adding carbs during flowering puts on bud girth while B+ in veg helps