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Nutrients: Difference between revisions
→Macro Nutrients
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== Macro Nutrients ==
Macronutrients are those nutrients that Cannabis requires in large amounts, the three main nutrients are Nitrogen, Phosphorus, and Potassium (often written as NPK). They typically come from the soil and are crucial throughout the plant's lifespan, although in differing ratios.
Vegetating plants require more Nitrogen and less Phosphorus and Potassium, while flowering plants demand much less Nitrogen and much more Phosphorus and Potassium during the flowering stage.
Cannabis also obtains Oxygen, Carbon and Hydrogen from water and air.
===NPK ratios===
The ratio of Nitrogen, Phosphorus, and Potassium the cultivar needs varies over its lifecycle. A rough guide:
=====Vegetative Stage=====
N P K
3:1:2
=====Flowering Stage=====
N P K
1:1:2
=====Final Flowering Stage=====
N P K
0:1:2
* Nitrogen
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