There are 17 basic elements that marijuana needs to grow but concentrate on the first 3. N, P, K which stands for Nitrogen, Phosphorus and Potassium. But of course, you have to make sure that all the necessary nutrients should be present and how to use nutrients for cannabis properly. There are few mixes in volume-volume and powder-volume ratios. 1 part liquid, 2 part liquid, 1 part powder, 2 part powder and 3 part liquids. Adjusting your formula for a specific growth phase is also advisable. So how do you mix it? You have to have basic chemistry knowledge to do this.
Try to find out what specific nutrients and what function of the plant it affects for cannabis deficiency. You can follow a simple guide that you can search on the internet. Take note of the number of plants, the variety especially the formula that you will be using. You have to know a bit about chemistry and some of the basic lab equipment to perform the mix. (beaker, weighing scale, etc.) .
Why Do You Need the Right pH to Your Premixed Nutrients?
pH levels determine the efficiency of how those nutrients will be absorbed. The pH scale indicates levels 1 to 14. 1 to 6 indicating an acidic medium whilst 8-14 indicates a basic medium and 7 being the neutral pH. In growing cannabis plants, although there are many strains and varieties, It is recommended to stick to 5.8 to 6.5 pH level, a relatively acidic medium.
You can measure pH by using a pH pen that costs around $60 per piece. If there are discrepancies tested, adjust your actual pH by using a few acids like sulfuric, nitric and phosphoric acids. For lifting the pH use some basic chemicals like Potassium Hydroxide, Sodium Hydroxides. You should also take caution in adjusting pH levels. Every milliliter added can change the result exponentially, so wait at least 20 minutes before you take your reading and start readjusting again.
Another tip: When mixing acids and water. Add the acid to water and not the other way around.