Folks with Corn Interest,
Please see the attached document from Dr. Ron Heiniger, NCSU Extension Corn Specialist, that discusses recommendations for addressing potential nutrient loss from recent heavy rains. Every situation will vary depending on soil type and fertilizer program to include how much and when certain nutrients have been applied. This may be a good time to monitor nutrient levels with a tissue sample submitted to the NCDA &CS Agronomic laboratory. This information will assist you in making decisions on your nutrient program going forward. Please let me know if you have any questions.
Thanks,
Mac Malloy
Extension faculty:
Here is a handout covering some concerns with corn due to the recent heavy rainfall. Most of this on flooding in corn is not new. What is new is the projection of nutrient losses due to leaching or denitrification. The key talking point is that corn growers across the state will need to plan on a sidedress application of N and possibly other nutrients like S to avoid reductions in yield. This will have the largest impact on growers who have already applied most of their fertilizer. They will need to suppliment what they have already applied. For growers who were planning sidedress applications these recommendations should just remind them to consider changes in soil nutrient levels caused by these recent storms.
Sincerely,
Ron Heiniger