Beans and tomatoes are two crops that may show iron chlorosis. Iron chlorosis can be identified by the interveinal yellowing of leaves. The veins are green and the tissue between the veins is yellow. At a distance of several feet, chlorotic plants look very yellow. Problems with chlorosis can be reduced by lowering the pH in high lime soils as was discussed earlier, but the simplest approach may be to apply an iron-containing fertilizer.
Several products are available.
Follow directions on the container for proper use. Where chlorosis is severe, iron chelates often are more effective than other forms of iron. The application of manure can be helpful by supplying iron and improving soil tilth. Zinc deficiency occasionally occurs when soils contain excess lime and are low in organic matter. Sweet corn and beans are the most likely crops to be affected.