2018
Development of a High Yield System for MG 3-4 Soybeans
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Contributor/Checkoff:
North Carolina Soybean Producers Association
Category:
Sustainable Production
Keywords:
DiseaseField management Pest
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Katherine Drake Stowe, US Soybean Research Collaborative
Co-Principal Investigators:
Project Code:
P18-023
Contributing Organization (Checkoff):
North Carolina Soybean Producers Association
$5,000
Institution Funded:
North Carolina State University
$5,000
Brief Project Summary:

Eastern North Carolina has seen an expansion in acres devoted to production using maturity group 3 and 4 varieties. While these varieties are vulnerable to quality damage when harvest is delayed due to weather, they have yielded very well, causing more growers to look at earlier planting dates using earlier varieties. The reduction in wheat acres, leading to fewer double-cropped soybean acres, has also contributed to the interest in planting earlier and earlier maturing soybeans. This project intends to quantify yield response of early planted MG 3 and 4 soybeans to starter fertilizers, seed treatments, foliar-applied fertilizers and fungicides.

Key Benefactors:
farmers, agronomists, extension agents

Information And Results
Final Project Results

Row Spacing: In a combined analysis across research locations and varieties, narrow rows provided a 7 bu/A soybean yield advantage over wider row spacing.
Seeding Rate: In a combined analysis across research locations and varieties, soybean yield declined at seeding rates below 100,000 seeds/A.
Planting Date: Stay tuned for more information on maximal planting date for early maturing soybeans in North Carolina. R1 Fertility: Our results indicate that despite high soybean nutrient demand at R1, soil-applied R1 fertility applications have no impact on soybean yield. This may be attributed to delayed nutrient availability not synchronizing with peak soybean demand.
Seed Quality: Seed quality can be an issue with earlier maturing soybean varieties. Timely harvest is critical to prevent seed quality declines.

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.