Soil Fertility Home Page
Welcome to the Iowa State University Agronomy Extension Soil Fertility Home Page. Nutrient topics are listed on the left side. Simply click on a topic of interest and you can find information about that topic, including Extension publications, newsletter articles, conference proceedings and reports, presentations, and links to other related sites. Links also provide access to soil fertility decision aid tools, a photo gallery, and the ISU Soil and Plant Analysis Laboratory.
APPLY NITROGEN OR PLANT CORN
John Sawyer, Professor, Department of Agronomy, Iowa State University
May 7, 2013
The end of the optimal time for corn planting is quickly approaching. Getting corn planted
should be a priority over making nitrogen (N) fertilizer applications. However, along with that
decision there should be a plan to get N applications completed after planting and crop
emergence. Switching products and application from preplant to sidedress requires availability of
needed fertilizers and equipment. So have a plan in place. Read on.
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DO YOU KNOW THE STORY OF SOIL?
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