Identify symptoms of nitrogen deficiency in plant leaves

Identify symptoms of nitrogen deficiency in plant leaves

A nitrogen deficiency can be recognised by yellow leaves. This is because chlorophyll disappears from the leaves. You'll first see this happen in the older leaves at the bottom of the plant. This happens because plants transport the available nitrogen to their young leaves and growing points. Eventually the growth of plants will stop as a result, and leaves will fall off. Some plants may see the leaves turn purple instead of yellow. Among others, this happens in multiple varieties of cabbage. A plant with a nitrogen deficiency will remain smaller than a healthy plant. The same goes for its fruits. Plants with a nitrogen deficiency are also more susceptible to problems like diseases and insects.

How do you recognise a nitrogen deficiency?

What is the (possible) cause?

How can you prevent it?

Under normal circumstances a nitrogen deficiency does not occur quickly. However, during intense stress or a growth spurt the plant is more susceptible to deficiencies. By using one of our basic nutrients (like Alga Grow and Alga Bloom), you reduce the likelihood of a deficiency. Also keep abiotic factors in mind. These include temperature, light intensity, acidity, amount of moisture and wind strength.

How can you cure it?

Are the leaves yellowed? Then fertilise your plants with a fertiliser with a high nitrogen content like Terra Grow. We also call this a fertiliser with a high N value. These can be applied as foliar fertiliser.

What does nitrogen do for the plant?

Nitrogen is an essential nutrient for your plant. It is required for the creation of chlorophyll. In turn, chlorophyll is needed for photosynthesis. A plant uses photosynthesis to grow. Additionally, nitrogen is part of the amino acids. These are used to form proteins. Proteins are needed for every conceivable process in the plant. For instance, they stimulate growth and promote fruit development.

Not sure whether you have a nitrogen deficiency of not?

Contact our grow expert via Servicedesk and ask for advice.

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What is NPK value in plant nutrients?

Low level of potassium in leaves: Symptoms are shown during flowering.


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