Get to Know Your tab Water
Tap and well water contain a tremendous amount of minerals that complicate your ability to maintain pH levels and provide a balanced feed. Minerals carry either a positive or negative charge. Those that are positive share the same uptake channels and ports on the root surface, which can lead to competitive uptake. Calcium, magnesium, and potassium all have a positive charge and therefore when one is present in excess, it can restrict uptake of the others. Contact your municipal water supplier or get your well-water tested so that you know what minerals your plants are receiving in addition to your nutrient feed. Another option is to use a reverse osmosis water filter.
Understand Your Nutrient Product Label
Every nutrient company gives you a different recipe and rarely explains why. There are 13 major nutrients plants use to grow, but most of the time it comes down to the three primary macronutrients: Nitrogen (N), Phosphorus (P), and Potassium (K). Let’s start with one frustrating detail about nutrient labels: P and K values as listed on the package do not indicate what is available to roots. These values are inflated by outdated labeling laws, and represent a theoretical amount of potassium oxide and phosphorus pentoxide. It will give you a headache trying to understand why they are labeled as such, but you should know that less than half the P listed is available to roots.
Grow big Trichomes, Not big Leaves and Stems
The primary (vegetative growth) and secondary (cannabinoids and terpenes) metabolism of plants share the same energy resources and your nutrient feed largely decides which one takes the lead. As nitrogen concentration increases, there is an exponential increase in growth and SM accumulation. However, there is a point when more N increases growth, but SM accumulation begins to decrease until it ceases altogether. In order to focus growth on trichomes, you should feed a moderate amount of N and P to sustain photosynthesis without deviating energy into vegetative growth.
Buds Quality Is Destroyed With Over-Fertilization
If electrical conductivity in your feed solution or root zone is too high, your plant’s ability to draw water into its roots by osmosis is restricted. One thing that happens far too often is a high nutrient dose in the second half of flowering. This encourages a straw-like flavor, reduced cannabinoid and terpene content, and a high chance of having bugs or mold attack your plant.
Contrary to popular belief, there is no secret sauce when it comes to nutrient formulas for crops. There are countless ways to bring a plant from the seedling stage to fully ripened buds so long as you stick to some of these central concepts.
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