These 3 Elements are generally taken care of by Mother Nature and little needs to be done to ensure plants receive proper amounts of Hydrogen (H), Carbon (C) & Oxygen (O).
The caveat to this is Oxygen, Roots love Oxygen! Luckily, we do not need higher levels than what is avaliable in the air we breathe, we just need to utilize natural levels appropriately.
Forms the backbone of most plant biomolecules including proteins, starches and cellulose. Carbon is fixed through phoyosynthesis which converts carbon dioxide from the air
A component of many organic and inorganic molecules within the plant acquired in many forms including O2 and CO2 from the air
Primary Elements
Everyone focuses on N-P-K values and while they are very important, there are other things below which are seriously important too.
Let’s stick to Nitrogen (N), Phosphorus (P) & Potassium (K) for a minute though.
Higher nitrogen (N) levels are required in the vegetative (7-5-5) stage with Phosphorus (P) & Potassium (K) being more important for big dense buds in the flowering stage (3-10-10).
The values given above are for example purposes only.
Actual N-P-K values on nutrients vary greatly and Parts Per Million (PPM) play a major part in the actual strength of plant foods.
Plant growth, root development, and seed and fruit development are usually reduced in potassium-deficient plants. Often, potassium deficiency symptoms first
Secondary Elements
The next most important after Primary Elements is the Secondary Elements Calcium (Ca), Magnesium (Mg) & Sulfer (S).
In reality the Secondary ones are of equal importance.
Calcium deficiency, for instance, is seen when growing tips and root tips die off, or plants have unnaturally dark-green foliage, flowers will rot and not mature properly, stems and stalks can become weak and limp.
Blossom end rot in tomato and pepper plants is often caused by a lack of Calcium (C) and Magnesium (Mg).
Cannabis growers often speak of nutrients such as Cal-mag which is made by all Nutrient Suppliers.
Sulfur is a structural component of some amino acids (including cystein and methionine) and vitamins, and is essential for chloroplast
Micro Elements
Boron (B), Chlorine (Cl), Copper (Cu), Iron (Fe), Manganese (Mn), Molybdenum (Mo), Nickel (Ni) and Silicon (Si), and Zinc (Zn).
These are called Micro Elements for a reason, they are all important but only required in small amounts.
The problem with trying to use Miracle-Gro or some other off the shelf generic nutrient mixes or All-In-One fertilizers is that certain key Micro Elements are not the right proportion and sometimes completely missing in the mixes.
There is no substitute for the proper nutrients or fertilizers which were made specifically for growing Cannabis.
Manganese is necessary for photosynthesis, including the building of chloroplasts. Manganese deficiency may result in coloration abnormalities, such as discolored