Claim · model-written summary
P fertilization increased corn yields every study year.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Phosphorus fertilizatione0
- Outcome
- corn yieldse0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus fertilization increased corn yields in every year of the study”
Title
Long‐Term Evaluation of Phosphorus and Zinc Interactions in Corn
A. P. Mallarino; J. R. Webb jpa 1995. doi:10.2134/jpa1995.0052
Other claims from this paper (8)
- Intervention effect Zn fertilization raised mean corn yield by 2 bu/acre over 26 years.
- Intervention effect Corn yield response to Zn was similar across applied P levels in most years.
- Intervention effect High P applications did not induce greater Zn deficiency than low P applications.
- Intervention effect Highest P application raised soil test P several times beyond yield optimizing levels.
- Intervention effect Zn fertilization raised initially marginal available Zn to very high levels.
- Intervention effect Zn fertilization increased yields in 5 of 26 years.
- Recommendation Excess P fertilization would reduce producer profits.
- Recommendation Excess P would not raise Zn fertilizer need.