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Haifa Blog

Iron deficiency in soils and plants – Facts, Reasons and Tips

Did you know that Iron is the 4th most common element in the Earth's, yet its deficiency in crops is very frequent?Iron deficiency in soils and plants – Facts, Reasons and Tips

In the following 9 brief topics you'll find the main symptoms, reasons and tips that will assist you to cope with Iron deficiency: 





  1. Iron plays important role in many plant functions, including: Chlorophyll development and function, energy transfer, nitrogen fixation, plant respiration and plant metabolism. 
  2. Iron deficiency can have a significant economic impact depending on the timing of the deficiency during the crop production cycle. 
  3. Iron deficiency is more likely to happen in alkaline soils (pH>7.5, especially where calcium carbonate is abundant). 
  4. Iron in soil can be available for plant absorption is when the iron is complexed with chelates. Chelates are organic molecules that hold the iron but release the iron to the plant even when the growing medium pH is high. 
  5. High levels of nitrogen, zinc, manganese and molybdenum in the soil can cause iron deficiency as well. 
  6. Iron is immobile in plants and therefore, deficiency symptoms appear first on the youngest leaves. The most notable symptom of iron deficiency is chlorosis or yellowing between the veins of the youngest leaves. 
  7. Increased acidity in soil caused by fertilizers that contain ammonium or Sulphur may enhance the availability of ferrous (Fe2+) iron by promoting the reduction of the unavailable ferric (Fe3+) iron. In soilless culture, the growing medium pH can be monitored by using acidic fertigation solution. 
  8. During the season, corrective measures to iron deficiency can be application of chelated iron through fertigation or foliar spraying. Foliar treatment produces a rapid but incomplete response, while a soil treatment will have delayed effect but will last longer. 


Haifa has a variety of solutions for the prevention and correction of iron deficiency that includes: 

a. Complexed NPK fertilizers enriched with chelated micronutrients for perfectly balanced nutrition that includes all plant essentials. 
b. Water soluble chelated micronutrients for fertigation and foliar application.

Iron deficiency in soils and plants – Facts, Reasons and Tips

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