Claim · model-written summary
Orchardgrass yield was more reduced by inadequate nitrogen-only applications than the other grasses.
- Taxon
- Orchardgrass
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Dactylis glomeratae0 - Treatment
- applications of NH 4 NO 3 onlye0
- Outcome
- yieldse0
- Direction
- reduced moree0
- Comparator
- tall fescue or Kentucky bluegrasse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“Orchardgrass yields were reduced more by the inadequacy of applications of NH 4 NO 3 only, than were tall fescue or Kentucky bluegrass.”
Title
Nitrogen‐Potassium Utilization by Three Pasture Grasses1
Robert W. Duell Agronomy Journal 1965. doi:10.2134/agronj1965.00021962005700050010x
Other claims from this paper (6)
- Intervention effect Plant tissue potassium percentage decreased with NH 4 NO 3 as the only fertilizer.
- Observation Orchardgrass showed the greatest response to differences in K.
- Observation Kentucky bluegrass showed the least response to differences in K.
- Observation Orchardgrass ranked highest for P content and response to P availability.
- Intervention effect Plots receiving only NH 4 NO 3 had higher crude protein percentages.
- Observation Tall fescue generally had the lowest crude protein percentage.