Claim · model-written summary
Six granitic soils were deficient in nitrogen for barley.
- Taxon
- barley
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Hordeum vulgaree4 - Outcome
- deficient in Ne4
- Setting
- granitic soilse4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
t0“Response of Bitterbrush Seedlings to Nitrogen and Moisture on a Granitic Soil”
e4“six granitic soils (including the previously tested soil) proved deficient in N for barley”
Title
Response of Bitterbrush Seedlings to Nitrogen and Moisture on a Granitic Soil
J. O. Klemmedson; R. B. Ferguson Soil Science Society of America Journal 1969. doi:10.2136/sssaj1969.03615995003300060044x
Other claims from this paper (8)
- Intervention effect Shoot and root weights were greater in surface-soil seedlings without added N than in seedlings from lower soil layers.
- Intervention effect Added N reduced seedling yields on surface soils.
- Intervention effect Added N increased seedling yields on the 40-90 cm soil layer.
- Intervention effect A high moisture regime diminished the adverse effects of added N on seedlings grown in surface-layer soil.
- Intervention effect A high moisture regime improved the effectiveness of added N on seedlings in lower-layer soils.
- Observation Shoot-root ratios and efficiency of water use of bitterbrush differed with nitrogen and soil layer treatments.
- Intervention effect Bitterbrush responded negatively or not at all to added N on the same soils.
- Association Bitterbrush yields declined when plant N reached about 2.0 percent.