There are 17 elements essential to plant life, and nitrogen is one of the most important. This macro-nutrient has many functions for the plant and, because of its importance, is particularly well known and monitored in the agricultural and horticultural sectors. We will look at what these functions are, how the plant is affected by a deficiency and how to detect it. We’ll also look at the most common causes and how Atami’s products can be used to remedy these deficiencies, so don’t miss out!

Plant displaying advanced nitrogen deficiency with pale, yellowing leaves indicating lack of essential nutrients.
A plant showing and advanced nitrogen deficiency

How is nitrogen important in plants​

Nitrogen is a critical component for plant growth, particularly during the vegetative phase. It is absorbed by plants primarily in the forms of nitrate (NO3-) and ammonium (NH4+). Nitrogen plays a pivotal role in cell division and biomass production, promoting green, leafy growth. It is also fundamental in the synthesis of all proteins and enzymes within the plant.


One of the most vital functions of nitrogen is its involvement in photosynthesis. Plants use chlorophyll to capture light energy from the sun, converting carbon dioxide (CO2) into glucose. Chlorophyll production relies heavily on nitrogen; without sufficient chlorophyll, photosynthesis cannot occur, and plant growth is stunted.

What does a plant look like with a nitrogen deficiency​

Early signs of nitrogen deficiency include yellowing of the older leaves, starting at tip and the edges of the leaf due to decreased chlorophyll production. As the deficiency progresses, these leaves turn brown, curl up, and eventually die. Since nitrogen is essential for plants to grow, a plant affected by a lack of it will also show stunted growth. However, fertilised plants rarely experience a deficiency, but if the plant nutrition management is not correct, an overabundance of nitrogen can lead to overly rapid growth, weak cell walls, and increased susceptibility to diseases.

Close-up showing older plant leaves turning yellow from tip to base, a clear sign of nitrogen deficiency.
Photo details of how the older leaves of the plant start to turn yellow, rising from the tip to the entire leaf

Causes of Nitrogen Deficiency

Nitrogen deficiency can arise from several factors. Common causes include:

• Imbalance in soil nutrients, particularly low potassium, zinc, and manganese levels.
• Insufficient nitrogen in the substrate, often seen in outdoor soils with low organic matter where nitrogen can leach away.
• High pH levels in the root environment.
• Plant diseases, such as Fusarium, which affect nutrient absorption and transport.

Nitrogen deficiency in plants cure​

To correct nitrogen deficiency, ensure that the soil or growing medium is balanced in all essential nutrients. Using high-quality plant nutrition and substrates typically prevents deficiencies. If a deficiency occurs, appropriate fertilization with nitrogen-rich fertilizers, like B’cuzz Soil A, ATA Terra Leaves or ATA NRG Upgrade, can help restore plant health.


Additionally, maintaining optimal pH levels and managing plant diseases are crucial steps in preventing future deficiencies. Mastering these key gardening practices, your plants will be healthier and more productive.

 

If you found this article useful, or if you want to know more about other nutrient deficiencies like potassium or phosphorus or more, be sure to visit this other blog on the same subject. Happy growing!

Share it:

Picture of Blog by Estela

Blog by Estela

Estela García is a Copywriter, Biologist specialized in Botany, and a plant enthusiast who has turned her home into a full-blown jungle. With over four years of experience writing for Atami, she creates blog content and other materials on plant nutrition, cultivation, and applied science.

Read more from Estela
Picture of Blog by Estela

Blog by Estela

Estela García is a Copywriter, Biologist specialized in Botany, and a plant enthusiast who has turned her home into a full-blown jungle. With over four years of experience writing for Atami, she creates blog content and other materials on plant nutrition, cultivation, and applied science.

Read more from Estela

Categories

Latest posts

Woman carrying a pumpkin outside a greenhouse in autumn, seasonal organic gardening and fall cultivation tips.

Essential tips and organic solutions for growing in autumn

Autumn is not the end of the vegetable garden, even though it may seem so at first glance. With shorter days, the first rains and the cold knocking at the…

Vegetable garden with blooming flowers, promoting biodiversity and organic cultivation in a sustainable outdoor space.

Biodiversity. The key to a healthy, productive and sustainable garden.

A garden can be much more than just pretty plants and flowers. It can be a living ecosystem. Think of vegetation, small animals, insects, microorganisms… all working together. Earthworms that…

Person preparing fresh vegetables on a cutting board at a table, promoting homegrown high-protein crops and healthy eating.

You are what you eat: High-protein crops to grow in your garden

“You are what you eat.” It’s not just a saying: every single cell in our body is built from what we put on our plates. And this is where your…

Read more blogs

The Power of Bloom Booster Fertilizer Rokzbastic for Ultimate Flowering

August marks a turning point in the growing calendar for the Northern Hemisphere.The plants you lovingly sowed back in spring, or early summer, have now grown, bloomed, and are getting…

The Role of Enzymes in Cultivation for Ultimate Soil and Plant Health

Soil isn’t just dirt. It’s a living ecosystem.And if you want thriving plants, you need to care for what’s beneath the surface. Much of a grower’s success happens underground, literally….

Rokzbastic: for rokz-solid and frosty results!

If you are looking for flowers and fruits hard as a rock, look no further, Rokzbastic does the job! This new Bastic member is designed to take your final harvest…

Now available

Rokzbastic

Finishing Bloom Additve

Silicbastic

Direct plant available Silicon Additive