Overfertilization consists of an excess in the application of nutrients used on the crop, which in turn causes the proliferation of toxic salts accumulated in the substrate. This actually blocks nutrient absorption, affecting its growth and even putting it at risk of dying.
In the same way that when choosing your cannabis paraphernalia you look at all the details so that you do not miss anything, fertilization also requires paying attention to all its aspects, especially the type of fertilizer applied and the exact amount used.
In addition, we can identify signs of fertilization and apply a root wash to try to save the plant, so that it continues with its normal growth process and without further incidents.
Signs of overfertilization of a plant
Overfertilization can occur with very different symptoms depending on the excess nutrients you suffer. We also distinguish signs of general and nutrient overfertilization.
Among the general signs of overfertilization the most common are the following:
- The leaves bend downwards.
- Burns are visible.
- Some leaves have a very dark green hue.
- The plant stops developing normally.
Overfertilization can occur at any time in the development of the plant. In most cases it is due to an excess of nitrogen applied during the early stages of growth. But it can also occur during flowering, although in these cases it is usually due to other nutrients such as potassium or phosphorus.
Each excess nutrient has different symptoms. These are the most common:
- Nitrogen: the leaves take on an intensity of excessive green, even approaching brown or white. Little by little they dry until they fall.
- Potassium: one of the most present nutrients in overfertilization during flowering. It is related to the difficulty of absorption of magnesium, manganese, iron or zinc.
- Boron: the leaves and stems turn yellow and dry progressively.
- Chlorine: causes burns on the stems and leaves.
- Copper: mainly affects the absorption of iron and prevents the plant from developing further.
How to do a root wash to avoid overfertilization
In order to solve a problem of overfertilization we must apply a root wash. Before, obviously, we must stop applying the fertilizer we are using.
The steps on how to do a root wash for overfertilization issue are as follows:
- Choose clean and soft water, with an optimal PH.
- Water the plants abundantly.
- Remove with water the remains of substrates and salts that have been accumulating.
- Observe how the plant begins to develop normally.
- Maintain proper fertilizer treatment, identifying where the excess occurred.
The monitoring of our plants is essential throughout the growth stage. At the slightest symptom, you must discover what is the possible problem they may be suffering and act accordingly, until the plants have developed in their entirety.