What is foliar fertilization?

What is foliar fertilization?

Updated Apr 12 

The most common method of plant fertilization is through the root, but this has its deficiencies when it comes to the intake of nutritional elements, for these cases foliar fertilization is a better option.

What is foliar fertilization?

Foliar fertilization is the method of achieving fertilization through trichomes, stomata, leaf wax layer (cuticle) or through the intake and supply of plant cells (endocytosis).

The method of fertilizing through the root has its deficiencies that the foliar method solves, such as:

-High pH in the root environment.
-Young and underdeveloped roots.
-Low evaporation.
-Rapid plant growth.
-Substrate too wet or dry.
-Weak roots.
-High pressure on the crop due to stress factors.

Some benefits of applying foliar fertilization are rapid nutrient intake, low amount of energy needed for nutrient transport, non-mobile nutritional elements remain in the plant, high absorption and no risk of fixation in the soil.

We must mention some points against this method, the most important being: The risk of burns or damage to the leaves, low doses should be applied, limited intake of nutritional elements.

Chitosan enhances plant survival and yield in times of heat or cold stress and drought.

When foliar-applied to crops it allows the plants to grow with less water.
Exogenous application of Chitosan has also been shown to accelerate growth
and germination as well as improve the quality of flowers and fruit.

The usage of 4% COS is as follows:

What is foliar fertilization?

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