View Poster Application

LIQUID NITROGEN PLACEMENT IN NORTH CAROLINA CORN PRODUCTION

Applied Research

Mitch Williams
Extension Agent, Agriculture
Sanford

Abstract

Side-dressing equipment and technology is emerging to help farmers improve yield. But is it worth the investment in time and equipment? To assist producers in learning more about the benefits of side-dressing and to evaluate the efficacy of different application techniques in North Carolina, we conducted an on-farm research trial. The replicated strip trial was duplicated at a site in the Piedmont and a site in the Coastal Plain.


Treatments:


1) 0 lbs N (demonstration purposes only)


2) 150 lbs N pre-plant (control)


3) 150 lbs N sub-surface center applied with coulter;


4) 150 lbs N surface dribble 4-6” from the corn stalk (Ydrop)


The results showed that the Coulter and Y-drop were significantly similar in yield. While the Pre-plant treatment yielded significantly less. This site showed that split applications increase yield and that coulter and Y-drop applications are similar. Applying lay-by N also greatly improves ear leaf concentrations of N as compared to applying all N Pre. Field observations show that making a lay-by application using the Y-drop technology is a faster means of application than using a coulter. This project has been funded for 2021 and will include a cost-efficiency analysis of the different treatments.

Poster has NOT been presented at any previous NACAA AM/PIC

This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.

Click to view Poster

Authors: M.K. Williams, J.S. Carleo, A. M. Growe, R Heiniger, T. E. Dill, M. S. Tilley, L. C. Gatiboni
  1. Williams, M. Extension Agent, Agriculture, North Carolina Cooperative Extension, North Carolina, 27332
  2. Carleo, J. Area Specialized Agent, Agriculture, North Carolina Cooperative Extension, North Carolina, 28677
  3. Growe, A. Extension Agent, Agriculture, North Carolina Cooperative Extension, North Carolina, 28379
  4. Heiniger, R. Official Variety Testing Program Director, North Carolina State University, North Carolina, 27695
  5. Dill, T. Extension Agent, Agriculture, North Carolina Cooperative Extension, North Carolina, 28092
  6. Tilley, M. Area Specialized Agent, Agriculture, North Carolina Cooperative Extension, North Carolina, 27962
  7. Gatiboni, L. Assistant Professor and Extension Specialist, North Carolina State University, North Carolina, 27695