McNay Research and Demonstration Farm
Prior research on micronutrients fertilization for corn and soybean has been scarce in Iowa and has shown inconsistent yield responses. Therefore, the objective of a study conducted during 2012 and 2013 was to assess effects of boron (B), manganese (Mn), zinc (Zn), and their mixture on corn and soybean grain yield. Iowa State University has no interpretations of soil or tissue tests for micronutrients, other than for Zn in corn and sorghum.
Iowa State University
Mallarino, Antonio P.; Oltmans, Ryan R.; Enderson, Joshua T.; and Piekema, Nicholas, "Corn and Soybean Response to the Micronutrients Boron, Manganese, and Zinc Applied to the Soil" (2014). Iowa State Research Farm Progress Reports. 2084.