Wheat is already at greenup in the southern two-thirds of the state and is beginning to greenup in the northern third. We would recommend applying nitrogen between greenup and Feekes Growth Stage 6 (early stem elongation), which is generally the latter part of April. The potential for nitrogen loss will decrease by waiting to apply closer to Feekes 6; however, since we are at greenup, a common sense approach would recommend applying as soon as field conditions allow application equipment, particularly since days available for field activities may be limited between now and Feekes 6.
We would still recommend the Tri-State guide for N rates in wheat. This system relies on yield potential of a field. As a producer, you can greatly increase or reduce your N rate by changing the value for yield potential. Thus, a realistic yield potential is needed to determine the optimum nitrogen rate.… Continue readingRead More »