2019
Profitable Soybean Practices 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:
Profitable Soybean Practices for MG 3-4 Soybeans
Lead Principal Investigator:
Katherine Drake Stowe, US Soybean Research Collaborative
Co-Principal Investigators:
Project Code:
P18-033
Contributing Organization (Checkoff):
North Carolina Soybean Producers Association
$10,000
Institution Funded:
North Carolina State University
$10,000
Brief Project Summary:

Choosing early maturing soybeans from maturity groups 3 and 4 has become more common in North Carolina. This project aims to quantify the yield response of soybeans in MG 3 and 4 to varying plant populations, planting dates and row spacings. This research also plans to identify a nutrient uptake curve for MG 3 and 4 soybeans. Then, efforts intend to quantify yield response to additional nitrogen, sulfur and potassium applications.

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.