Episode 43: Nitrogen Management in Cotton

Bhupinder Farmaha (Clemson University), Tyson Raper (University of Tennessee), John Arnall (Oklahoma State) and Katie Lewis (Texas A&M) join host Steve Brown to discuss N management in cotton. The session addresses: Are we using too much N in some areas? Why do many N studies across the Belt show limited or even no response to N? If that is the case, where does the N come from? How much N is actually required to make a bale of cotton (and the associated seed, etc.)? Can we mine residual N in subsoil layers? Might it be possible to impose targeted nutrient stress on cotton and improve root growth and yield? And a lot more. There are clear differences in how we manage N across the U.S. It is a lively discussion on a key topic.