The cannabis nutrient menu
3.March 2021 | Manuela
Plants need a lot more than light and love. Cannabis is also happy to have a balanced menu.
This is what the nutrient menu of a cannabis plant looks like
What exactly is on the menu and, more importantly, why, opens our three-part series on cannabis and its nutrients. In part two, we then look at how cannabis communicates its needs, and in the finale, we peek over our chef's shoulders and find out what all is sizzling away in the in-house fertilizer mix.
"Photosynthesis" - For many, the first big term in their vocabulary. In the chloroplasts of the plant, carbon dioxide and water are converted into glucose with the help of light energy. This releases oxygen, which in turn is released into the environment. The glucose is stored as starch or processed into cellulose. This is the basis of any contented plant, including cannabis. Outside of this foundation, however, the cannabis plant needs quite a bit of supporting nutrients, which are either obtained from the environment or supplied artificially in the form of fertilizer.
The 14 nutrients of the cannabis plant
N and P and K and Ca and S and Mg. Then some Fe and B and Mo and Mn and Cu and Cl and Zn and Co. That's the alphabet salad that a cannabis plant likes to have on the menu. What are the exact ingredients and why are they important?
The difference between macro and micronutrients
There's more to this menu than meets the eye, isn't there? If you want to grow successfully, you should always keep these nutrients in balance. Basically, there is a distinction between macro- and micronutrients. Macronutrients include nitrogen, phosphorus, potassium, calcium, sulfur and magnesium. All others end up in the category of micronutrients.
As the name implies, only small amounts of the micronutrients are needed. The macronutrients, most notably nitrogen, phosphorus and potassium, also known as N-P-K, are match-deciding building blocks for a successful crop. To learn what happens when individual menu items are missing or the cannabis over-eats, read the blog post "How do I know the nutrient needs of a cannabis plant?".
Sources and further links
Adams, Philip. Weedology: Alles über den Cannabis-Anbau. 2018. Solothurn. Nachtschatten Verlag AG.
Lizermann, LL. Der Cannabis-Anbau: Der einfache Weg zum eigenen Homegrow. 2020. Solothurn. Nachtschatten Verlag AG.
Lore, Chuck. Cannabis: Anbau, Ernte und Konsum. 2020. Solothurn. Nachtschatten Verlag AG.
Mike, MoD. Enzyklopädie der Cannabiszucht: Fachbuch der Hanfgenetik. 2020. Solothurn. Nachtschatten Verlag AG.