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On-Farm Evaluation of Boron Response in Corn and Sugarbeet

Study author(s): Dan Kaiser, University of Minnesota, Department of Soil, Water, and Climate
Years active: 2016
Location(s): various

Important: for the complete report, including all tables and figures, please download using the links to the right.


The data suggests that there should be little concern that B is limiting the yield of corn and sugarbeet across Minnesota. Soil tests for B were relatively low at a few irrigated corn locations but yield responses could not be tied to a specific correlation or B in the soil (a critical level could not be determined). More research is being conducted to determine if there is a concentration of B in teh soil where a response to B in corn woudl occur. Care should be taken when interpreting soil and plant tissue test results as critical levels have not been established for either test based on yield response data. The data suggests that soil tests as low as 0.08 ppm and tissue tests as low as 4 ppm should provide adequate B to maximize corn grain yield.

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