2021
Improving Soybean Yields by Enhancing Seed Filling
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Contributor/Checkoff:
Kansas Soybean Commission
Category:
Sustainable Production
Keywords:
Field management Nutrient managementSoil healthTillageYield trials
Parent Project:
Improving Soybean Yields by Enhancing Seed Filling
Lead Principal Investigator:
Ignacio Ciampitti, Kansas State University
Co-Principal Investigators:
Project Code:
2176
Contributing Organization (Checkoff):
Kansas Soybean Commission
$27,500
Institution Funded:
Kansas State University
$27,500
Brief Project Summary:

Soybeans accumulate between 30-50% of the final yield during the seed filling period (R5-R7). Research shows improving “green leaf area” duration and extending the seed filling period by only 7 days provided a yield benefit of more than 10 bu/acre. Therefore, further investigation needs to be done on management practices that can extend the seed-filling period (at least for a few days) impacting soybean yields across different environments. Project goals include identifying late-season management practices that improve final seed number and weight, and seed yield. Enhancing seed filling is critical for improving soybean yields under varying environments and changing climate-economic scenarios.

Key Benefactors:
farmers, agronomists, extension specialists

Information And Results
Project Deliverables

The project will provide outcomes to help identify on-farm production practices that are blocking yield potential and provide data for possible management practices to increase yields. All project outcomes will be disseminated in diverse research and extension communication outlets to help Kansas soybean producers for maximizing financial returns and preserve the land and water resources under their control.

Final Project Results

Update:
Both fields were harvested and information on seed yields, biomass, and seed weight processed. The attached document presents an overview of the main results obtained for these studies in the 2021 growing season.

View uploaded report PDF file

Late-season management was not able to produce an impact on soybean yields, as reflected on the lack of changes on plant biomass and seed weight. Future research should consider evaluating the effect of management tested earlier during the crop growing season.

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.