Claim · model-written summary
Corn phosphorus uptake increased linearly with starter phosphorus rate regardless of broadcast phosphorus or initial soil P.
- Taxon
- Corn
Zea mays subsp. mayse0 - Organ / stage
- V5–V7e0
- Treatment
- rate of starter Pe0
- Outcome
- P uptakee0
- Direction
- increased linearlye0
- Qualifier
- regardless of where broadcast P was applied and initial STP concentratione0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn plant mass and P uptake at V5–V7 increased linearly as the rate of starter P regardless of where broadcast P was applied and initial STP concentration”
Title
Should starter fertilizer rate be adjusted by initial soil test P concentration?
Daniel E. Kaiser; Karina P. Fabrizzi; Jeffrey A. Vetsch; et al. Agronomy Journal 2025. doi:10.1002/agj2.70202
Other claims from this paper (7)
- Intervention effect Corn mass increased linearly with starter phosphorus rate regardless of broadcast phosphorus or initial soil P.
- Intervention effect Phosphorus increased corn yield in low or medium soil P classes.
- Intervention effect Starter phosphorus alone did not maximize grain yield in low phosphorus soils.
- Intervention effect At medium or higher soil P, 29 kg ha −1 starter fertilizer was sufficient to increase early growth relative to broadcast P alone.
- Intervention effect At medium or higher soil P, 29 kg ha −1 starter fertilizer was sufficient to increase corn yield relative to broadcast P alone.
- Recommendation Broadcast phosphorus was needed to maximize yield at low soil P.
- Intervention effect Starter rates above 29 kg ha −1 did not improve yield potential over broadcast P alone across sites.