This study supports the premise that concentrating N fertilizer below ground near the crop row can increase grain yield and N removal.
In this study, plots that received no N fertilizer still lost a notable amount of nitrate-N through the subsurface drainage system.
The Annual Report provides a comprehensive overview of project results and in-process outcomes for ongoing projects.
Thanks to the ongoing work of NREC funded researchers at the University of Illinois and cooperators from the Illinois Fertilizer & Chemical Association, the results of “Soil and crop response to phosphorus and potassium management under conservation tillage” have been published in the Agronomy Journal.
Core Ideas from the published research are:
- No-till reduced yield relative to strip-till
- Deep banding P and K with strip-till resulted in no yield advantage over broadcast applications
- Although there is no agronomic advantage, deep banding effectively reduced soil P and K levels in soil surface layers
- Critical soil test K levels were greater than current recommendations
On Friday March 20, 2020 Dr. Emerson held a webinar helping farmers and retailers prepare for nitrogen fertilizer decisions as we inch closer to Spring field work and the planting of the 2020 crop.
The pdf’s from the presentation are available here: Spring N Mgt webinar March 2020 and you can also view/hear the archived webinar at this link: March 20 2020 Spring N Webinar Archive . Those needing CEU’s can self-report 1 CEU in Nutrient Management.