Claim · model-written summary
Slow-release fertilizer improved seedling establishment during the first two seasons on volcanic sandy barrens.
- Taxon
- Leymus arenarius
Leymus arenariuse1 - Treatment
- slow-release fertilizerse0
- Outcome
- Establishment of seedlingse0
- Direction
- improvede0
- Setting
- volcanic, sandy barrense0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Establishment of seedlings on volcanic, sandy barrens over the first two seasons from sowing was improved by the application of slow-release fertilizers”
e1“Seed of the coastal, dune-building grass Leymus arenarius is harvested from natural stands”
Title
S. Greipsson; A. J. Davy Journal of Applied Ecology 1997. doi:10.2307/2405229
Other claims from this paper (11)
- Intervention effect Nitrogen fertilizer markedly increased seed yield in coastal dunes.
- Intervention effect Nitrogen fertilizer increased flowering-spike density.
- Intervention effect Phosphorus additions provided little short-term advantage.
- Intervention effect Potassium additions provided little short-term advantage.
- Recommendation Rapid-release nitrogen at 50-100 kg ha-1 could produce seed cost-effectively from a smaller dune area or increase seed output.
- Intervention effect Annual rapid-release fertilizer produced similar tiller density and biomass after four years more economically.
- Observation Untreated control seedling populations became extinct over four years.
- Intervention effect Severe phosphorus deprivation increased dry-mass allocation to roots and rhizomes.
- Intervention effect Potassium deprivation increased dry-mass allocation to above-ground parts.
- Intervention effect Fertilizer failed to rejuvenate seed production in moribund late-successional stands.
- Intervention effect Where vegetation responded, fertilizer stimulated competing species at the expense of Leymus arenarius.