Zinc

Deficiency Symptoms

Zinc deficiency of soybeans is not common. The leaves become chlorotic, then rusty brown in color. The veins remain green. The chlorosis is uniform over the leaf and not concentrated initially on the edges as occurs with deficiencies such as K.

Foliar spray of ZnSO4 1% at fortnightly intervals or soil application of ZnSO4 20 to 25 kg/ha