By Steve Culman, Ohio State University Extension
Two new factsheets summarizing key components of the work to update the Tri-State Fertilizer Recommendations are now available.
Updated Grain Nutrient Removal Rates
How many pounds of nutrients are removed with every bushel of corn, soybean, and wheat harvested? This factsheet reports new numbers and shows how nutrient removal rates in harvested grain have decreased over the past 25 years.
For more information: go.osu.edu/grain.
Converting Soil Test Values: Mehlich-3, Bray P, Ammonium Acetate
The updated Tri-State Fertilizer Recommendations will use the Mehlich-3 extractant as the new standard for fertilizer recommendations. This factsheet provides simple, standardized conversions that allow users to convert back and forth from these different extractants.
For more information: go.osu.edu/mehlich.