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This article in SSSAJ

  1. Vol. 34 No. 2, p. 240-244
    Received: Aug 25, 1969
    Accepted: Nov 4, 1969

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Interaction Among Atrazine, Temperature, and Phosphorus-Induced Zinc Deficiency in Corn (Zea mays L.)1

  1. L. A. Rudgers,
  2. J. L. Demeterio,
  3. G. M. Paulsen and
  4. R. Ellis Jr.2



Corn (Zea mays L.) was grown with two levels each of P and Zn with and without atrazine in the field on recently leveled P- and Zn-deficient soil and in nutrient solutions in environmental chambers. Severe Zn deficiency symptoms were exhibited by field-grown corn receiving no Zn and were accentuated by P fertilization. Atrazine had no evident effect on deficiency development. Phosphorus and Zn concentrations in leaves, but not in grain, of field-grown corn were increased by atrazine. In environmental chambers, corn seedling growth was decreased more by atrazine toxicity than by P or Zn nutrition. Phosphorus and Zn concentrations were increased frequently by atrazine at low but not at high growing temperatures. Atrazine had little apparent effect on P-induced Zn deficiency development in the field or in environmental chambers.

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