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Article
Potassium deficiency symptoms in corn
Integrated Crop Management News
  • John E. Sawyer, Iowa State University
Document Type
Article
Publication Date
6-26-2000
Abstract
The dry conditions this spring have resulted in corn plants expressing potassium (K) deficiency symptoms the past 2 weeks. This phenomenon has appeared in previous dry spring seasons and is back again this year, especially in southern Iowa. Areas of the state that received adequate rainfall are generally not showing K deficiency symptoms. Symptoms can appear even though soil K is adequate for crop production. How can this occur? Uptake of K by plants requires an active root system, especially in the soil zone where plant-available K is located.
Copyright Owner
Iowa State University
Language
en
File Format
application/pdf
Citation Information
John E. Sawyer. "Potassium deficiency symptoms in corn" (2000)
Available at: http://works.bepress.com/john-sawyer/151/