|OSMOND, DEANNA - North Carolina State University|
|SLATON, NATHON - University Of Arkansas|
|BRUULSMA, TOM - International Plant Nutrition Institute (IPNI)|
|BHUPINDER, FARMAHA - Clemson University|
|GROVE, J - University Of Kentucky|
|HARMEL, DAREN - US Department Of Agriculture (USDA)|
|LYONS, SARAH - North Carolina State University|
|MCGRATH, JOSH - University Of Kentucky|
|NELSON, NATHON - Kansas State University|
|SPARGO, JOHN - Pennsylvania State University|
Submitted to: American Society of Agronomy Meetings
Publication Type: Proceedings
Publication Acceptance Date: 8/18/2019
Publication Date: N/A
Interpretive Summary: No Interpretive Summary is required for this Proceedings/Symposium. JLB.
Technical Abstract: Soil tests and resulting fertilizer recommendations developed over half a century ago were the product of state-level research. The amount of historical correlation and calibration data to support recommendations—and resources to continue trials to refine recommendations—has varied widely among states. Soil test based recommendations have recently come under scrutiny for various reasons, including a lack of current research, inconsistent terminology, and different soil test methods and fertilization philosophies among geographic regions and states within a region. To bridge differences among states and provide transparency and confidence in soil testing, we propose to develop a web-based soil test database and analysis tool. The short term goal of the project is to develop a Fertilizer Recommendation Support Tool (FRST) that collates available data into a database, provides stakeholders database access, and supports data analysis to enable novel insight into crop fertilizer response and soil testing relationships; the Making Better Fertiliser Decisions for Cropping Systems (BFDC) database developed in Australia will be used as a guide. The long-term goal is to develop more consistent, transparent and science-based nutrient management recommendations for major row crops across regions and environments. To ensure success, FRST must assure open access in perpetuity, have no organizational ownership, include ways to cite contributed data, and accommodate software changes over time. For these reasons, the tool and accompanying database will be housed at the USDA Ag Library. The correlation and calibration database will be contained within the Agricultural Collaborative Research Outcomes System (AgCROS). Development of FRST will include acquisition of soil test phosphorus and potassium correlation and calibration data and development of the web-based program to access the data and algorithms to support searches and queries. This collaborative effort includes soil fertility researchers from many states to develop and promote the use of FRST in their region.