27 April 2015, 16:39
Is rain stealing your nitrogen? In a Southeast Farm Press editorial, University of Purdue Agronomy Professor, Tony Vyn, discusses best options for late nitrogen applications.
“Consider late-season applications, especially when high rainfall has resulted in deficient soil mineral nitrogen relative to corn’s requirement. Consider a strategy of never putting on more than 50 percent of your nitrogen application at any one time, and make that application when the modern hybrids take up their nutrients,” stated Vyn.
“It can be done with a bulk spread of urea, but in our program we’re focusing more on using injected UAN using coulter systems between the rows. There are quite a few hybrids today that are responsive to a late split of nitrogen,” added Tony. “From a stewardship point of view, it makes sense to plan on a late application rather than to apply late nitrogen only in a rescue situation, where you lose nitrogen due to excessive rain,” he added.
Read the full article from Southeast Farm Press at: http://southeastfarmpress.com/