2014
Soybean Response to Nitrogen management Under Tile Drained Conditions
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
Field management Nutrient managementSoil healthTillageYield trials
Lead Principal Investigator:
Amitava Chatterjee, North Dakota State University
Co-Principal Investigators:
Rakesh Awale, North Dakota State University
Chad Deplazes, North Dakota State University
Hans Kandel, North Dakota State University
+2 More
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Applying low rates of nitrogen (N) fertilizers at planting was proposed as a management practice to increase soybean (Glycine max L.) yields. The objective of this study was to assess the effect of N fertilizers that were applied to the soil at planting time on the soybean yield and the soil N availability under subsurface drainage conditions.

Unique Keywords:
#crop management systems, #leaf samples, #nitrogen management, #soil fertility, #urea
Information And Results
Project Deliverables

Final Project Results

Our study showed that applying low rates of N fertilizers at planting generally created greater levels of available soil N in both growing seasons, however, grain yields were not improved when compared with the unfertilized control for any of the growing seasons. Rather, yields declined by 11.8 percent to 18.8 percent due to the N fertilizer addition as compared to the control in one of the study’s two years.

These results suggested that adding N fertilizer at planting was not an effective management practice to increase soybean yields, regardless of the sub-surface drainage managements, but could possibility increase the N that escaped to the environment.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.