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Publications by Daniel W. Barker
Corn Era Hybrid Response to Nitrogen Fertilization
Agronomy Journal
Agronomy
Crop Science
Seasonal and Rotational Influences on Corn Nitrogen Requirements
Seasonal and Rotational Influences on Corn Nitrogen Requirements
In-Season Nitrogen Fertilization of Soybean
Sulfur Fertilizer Application to Corn and Soybean
Sulfur Application to Corn and Soybean Crops in Iowa
Seasonal and Rotational Influences on Corn Nitrogen Requirements, Swine Farm
