Corn, Soybean, Oat, and Alfalfa Yields as Affected by the Rotation and Nitrogen Fertilization for Corn in Northeast Iowa—1979–2024 Summary
- Antonio P. Mallarino (Iowa State University)
- Ken T. Pecinovsky (Iowa State University)
Abstract
A long-term rotation study was initiated in 1979 at the Iowa State University (ISU) Northeast Research and Demonstration Farm to assess effects of various crop rotations and Nitrogen (N) fertilization for corn on yields of several crops. Crop rotations often influence yield by changing the availability of several nutrients and water, soil physical properties, and incidence of diseases, pests, or weeds. Including legumes in a rotation increases soil N supply and reduces needed N fertilization. This article summarizes average yields from 1979 to 2024 and from 2020 to 2024.
How to Cite:
Mallarino, A. P. & Pecinovsky, K. T., (2025) “Corn, Soybean, Oat, and Alfalfa Yields as Affected by the Rotation and Nitrogen Fertilization for Corn in Northeast Iowa—1979–2024 Summary”, Iowa State University Research and Demonstration Farms Progress Reports 2024(3), 43-45.
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