June 18, 2019 1:30 PM
According to UW Discovery Farms, from 2016-2018 the number of days from spring thaw to 75% corn planting progress doubled from the ten years prior due to cold temps, increased precipitation, etc. Since 2019 is following the trend, UW Extension has developed a resource page for dealing with extreme weather: fyi.extension.wisc.edu/grain/extreme-weather.
Discovery Farms’ NUE project has also shown that corn grain production is transitioning away from N management systems that apply all N at the beginning of the season towards in-season applications based on weather variability and other factors. HOWEVER, from the Farms’ data set, fields that split applied nitrogen, on average, had higher fertilizer N rates than fields that applied all N at planting or in-season. As N rates increase, yield must also increase proportionately in order to maintain an average NUE! READ the full article here!