The symptoms of iron deficiency are most apparent in the youngest leaves, which will turn yellow while the veins remain green. The leaves may also become brittle and show signs of necrosis (tissue death). In some plants, such as rice, the entire plant may take on a yellow appearance, which is known as "white chlorosis."
Iron deficiency can occur in soils that are alkaline, poorly aerated, or waterlogged. In alkaline soils, iron becomes insoluble and unavailable for plant uptake. In poorly aerated or waterlogged soils, the availability of iron to plants is reduced because the roots cannot take up enough oxygen to maintain the biochemical processes needed for iron uptake.
To address iron deficiency in plants, iron can be added to the soil in the form of iron chelates or ferrous sulfate. Iron can also be applied as a foliar spray. However, it is important to note that excessive amounts of iron can lead to toxicity in plants. Therefore, it is essential to monitor the iron levels in the soil and the plant tissue to avoid both deficiency and toxicity. Additionally, improving soil drainage and aeration can help to increase the availability of iron to plants.
Radongrow Provides a Hydroponic Nutrient with a Balance amount of Chelated Iron for Leafy greens, Fruting and Vine crops, and Flowering crops.