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Soybean yield increases made possible with improved management

 

An ag economist says improved management systems and weather have led to increased soybean yields rather than genetic advances.

Scott Irwin with the University of Illinois tells Brownfield favorable weather the past four years has contributed to soybean yield increases, but that’s just part of the story.  “I estimate what’s going on in the South has probably put around a half bushel to a bushel on to our U.S. average yields recently.”

He attributes management changes like planting earlier with earlier maturing varieties, using raised beds systems and increasing soil organic matter for the higher yields in the South.  “You’re seeing lots of states down in the South that are starting to approach 50 bushel statewide averages that are looking a lot like the Midwest.”

Irwin says while genetic improvements are also a factor, research indicates it’s not the main reason for the increase in yields.

Irwin spoke with Brownfield during the resent Illinois Farm Economics Summit in DeKalb.

AUDIO: Interview with Scott Irwin