DIAGNOSE AND REPAIR COMMON NUTRIENT ISSUES
One of the most common posts in any cannabis-growing group or forum is along the lines of “What is this, and how do I fix it?” Many of us are happy getting along with help from these groups and doing what we are told, but for those who’d like to learn more, below is a step-by-step guide on how to diagnose and fix these issues.
STEP ONE: TEST YOUR SOIL
The first thing you should know is that plants do not make mistakes—humans do. And most of the time these mistakes are due to something we have neglected, leading to the plants exhibiting physical symptoms from nutrient issues. Many of these problems that arise are caused by too many or too few nutrients. Knowing this, before we start trying to add and remove nutrients to level things out, we want to see where our soil is at for pH (acidity/alkalinity) and PPM/EC (total dissolved solids/electrical conductivity). This can be done by flushing and testing the runoff water. It is important to remember that pH-level swings can affect which nutrients are available to our plants, so we may not need to add or remove anything. We can fix pH with a pH flush.
