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Latest Tony Vyn Stories

Modern Hybrid Corn Makes Better Use Of Nitrogen
2012-04-30 10:46:38

Today's hybrid corn varieties more efficiently use nitrogen to create more grain, according to 72 years of public-sector research data reviewed by Purdue University researchers. Tony Vyn, a professor of agronomy, and doctoral student Ignacio Ciampitti looked at nitrogen use studies for corn from two periods — 1940-1990 and 1991-2011. They wanted to see whether increased yields were due to better nitrogen efficiency or whether new plants were simply given additional nitrogen to...

2010-01-25 15:48:14

It might not look like there's much going on in those roadside corn fields, but a Purdue University researcher has shown that corn plants are in a fierce battle with each other for resources. Tony Vyn, a professor of agronomy, said it's been known for a long time that young corn plants are, on average, shorter in no-till, corn-on-corn fields, but that doesn't mean there is an overall stunting of growth among all plants. Instead, residue left over from last year's corn crop is changing soil...