Why is nitrogen important for marijuana plants?

Written by on 25 May, 2020

While it’s true that cannabis plants need a variety of nutrients for proper growth, this time we’ll talk about how important nitrogen input is. So read on.

Nitrogen: A necessary element

Nitrogen is absorbed through the root system or by foliar spraying.  This element is relevant in the development of cannabis, as it is crucial in the production of chlorophyll (a pigment that allows light to be absorbed, which is necessary for photosynthesis).

In addition, this compound plays a key role in amino acids (important elements in the production of proteins), and is one of the main components for your plants to produce new leaves.

How can we detect nitrogen deficiencies?

It is very important that you are constantly aware of your growing, so that you can tell if something is not working properly. To detect a nitrogen deficiency, look carefully at your cannabis, because in these cases, plants usually show the following symptoms:

-The lower leaves turn yellow first than the upper ones, (the yellowish color can also occur in advanced stages of flowering, when there is a lack of potassium).

In addition, the leaves usually look light green; this shade is an alarm that alerts you about a possible nitrogen deficiency.

-The plants will be slow growing, weak, and with scarce foliage.

How can the lack of nitrogen be solved?

To correct this deficiency, try a root wash or use a fertilizer rich in nitrogen, but be careful not to overdo it with this element, as it can be counterproductive, because when an excess of nitrogen is produced, cannabis plants do not develop properly either.


Identify correctly the causes why, your cannabis plant has that yellowish and decayed aspect, as these symptoms can be similar to other problems, so if you don’t inform yourself well, you are probably not solving anything, but making the situation worse.

In any case, try to maintain a balance of the various necessary nutrients you bring to your marijuana, and as for dosage, remember that each strain is different, and so document the ideal amount.

Also, make sure that temperature, pH, lighting and other levels are appropriate to avoid nitrogen deficiency.









Current track