BTzGrow
Well-Known Member
I missed this second part of your question. Yes you are measuring the water before and after you add nutrients. I actually measure between each nute to make sure I'm on target until I get comfortable with my recipe.what is the range you're looking for and is it the water with the nutrients in it that you're measuring or the watering run-off after fertigating the plant?
Regarding levels. This is where it gets tricky. Different plants and different stages of growth change the levels you want to feed. There are some basics that we start with in each stage. As the plants begins as a seedling it requires very little initially so a very light dose. During the Veg cycle the plant has certain requirements, and they can change when you switch to the flower cycle. Even the Flower cycle has different needs between the stretch and the budding stages. I'm looking through my files to find the basic start point.
@felipe most likely has the base start numbers memorized. But I normally keep my Nitrogen around 100ppm. Phosphorus (P) around 50ppm. Potassium (K) around 130-150ppm. Magnesium around 50ppm and Calcium about 100-120ppm. The rest of the nutrients fall into line as you don't normally add them separately. @felipe please correct me if I'm off too far.
It might sound complicated but it's not and if you follow along with certain guidelines you will quickly catch on. @FelipeBlu has a long history of growing all types of plants. You should see some of his really tomatoes and strawberries.Yummy. So he has a wonderful grasp of what is needed to feed. He has been an excellent mentor for me just starting to grow Cannabis in the last three years.