Iron (Fe) deficiency

Iron (Fe) deficiency affects photosynthesis and leads to reduced yield and dry matter production. Fe deficiency is relatively rare especially in irrigated rice systems, but can occur throughout the growth cycle of the plant. It can be a source of yield loss in alkaline or calcareous soils (especially in the uplands).

 

Hot to identify (symptoms)

Check the plant for the following symptoms:

• interveinal yellowing and chlorosis of emerging leaves
• whole leaves become chlorotic and then very pale
• entire plant becomes chlorotic and dies if deficiency is very severe
• decreased dry matter production

To confirm Fe deficiency, send soil and plant sample to lab for Fe deficiency test. 

How to manage

1.  Grow Fe-efficient varieties by contacting your local agriculture office for an up-to-date list of available varieties.

2.  Apply organic matter (e.g., crop residues, manure).

3.  Use acidifying fertilizers (e.g., ammonium sulfate instead of urea) on high-pH soils.

4.  Use fertilizers containing Fe as a trace element.