2016
Evaluating the Effects of Soybean Planting Rates and Late Planting Dates
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Contributor/Checkoff:
North Dakota Soybean Council
Category:
Sustainable Production
Keywords:
Field management Nutrient managementSoil healthTillageYield trials
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Michael Ostlie, North Dakota State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Soybeans are faced with many establishment challenges in the spring. The last couple of growing seasons highlight many of those challenges with late plantings, soil crusting, moisture stress, and reduced stands. The following research aims to find yield trends between planting dates and populations that will aid producers in making decisions about replanting when a reduced stand is realized. Soybeans are known to compensate for lost population by putting out more branches and achieving potentially a higher yield per plant. However, more work is needed to compare the factors of planting date and population to gain a better idea of whether an early planted crop with reduced stand will...

Unique Keywords:
#crop management systems
Information And Results
Project Deliverables

This research will produce tangible evidence as to the effects of lower populations and late planting dates on soybean yield and quality. We would expect to see higher yield potential from the two earlier planting dates than the final planting date. We would not expect to see much difference in yield between populations separated by 30,000 plants, but we would expect to see maturity delayed as the population decreases. Since soybeans compensate well for reduced stand, we would expect more branching (and yield/plant) in lower populations, but it would occur later in the year leaving the canopy more open for much of the growing season.
The results of this research will be published on the NDSU and Carrington Research Extension Center websites and in the CREC annual reports. The information will be presented at extension and professional meetings as well as reported as requested by the ND Soybean Council. A short video will be put together to highlight the summary of results during the growing season in 2015.

Final Project Results

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.