Claim · model-written summary
The authors recommend updating fertilizer guidance.
- Taxon
- corn and soybean
Glycine maxZea mays subsp. mayse0
- Outcome
- recommendations require updatinge0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“These recommendations require updating to better reflect fertilizer needs of modern corn and soybean.”
Title
Over‐Fertilization Does Not Build Soil Test Phosphorus and Potassium in Ohio
Anthony M. Fulford; Steve W. Culman Agronomy Journal 2018. doi:10.2134/agronj2016.12.0701
Other claims from this paper (6)
- Intervention effect Grain yield seldom responded to P and K fertilization.
- Intervention effect Nine of 42 site years had a positive yield response.
- Intervention effect The 1× rate significantly reduced soil test P at two of three sites.
- Intervention effect The 1× rate significantly reduced soil test K at all sites.
- Intervention effect The 2× rate failed to build soil test P and K at any site.
- Intervention effect The 2× rate significantly reduced soil test P and K at one site.