Claim · model-written summary
Winter barley yields after grass did not respond above 60 kg N/ha in 1997.
- Taxon
- winter barley
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Hordeum vulgaree3 - Treatment
- fertilizer Ne3
- Outcome
- Yieldse3
- Direction
- no_changeinferrede3
- Qualifier
- above 60 kg N/hae3
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e3“Yields of 1997 winter barley after grass did not show a response above 60 kg N/ha, but increased with fertilizer N up to at least 120 kg N/ha after grass-clover”
Title
A. J. A. VINTEN; B. C. BALL; M. F. O'SULLIVAN; et al. The Journal of Agricultural Science 2002. doi:10.1017/s0021859602002502
Other claims from this paper (15)
- Intervention effect In 1996, spring barley grain yield and N uptake did not respond to N fertilizer after grass.
- Intervention effect In 1996, spring barley grain yield and N uptake after grass-clover responded nearly linearly to N fertilizer.
- Intervention effect In 1997, spring barley responded to N fertilizer at all levels.
- Intervention effect Winter barley yields after grass-clover increased with fertilizer N up to at least 120 kg N/ha in 1997.
- Intervention effect In 1998, winter barley grain yield was significantly higher after grass than after grass-clover.
- Intervention effect In 1998, N fertilizer and cultivation method had strong effects on grain yield and N uptake of spring and winter barley.
- Intervention effect No-tillage under spring barley generally yielded lower than ploughing.
- Intervention effect Throughout the 3 years no-tillage plots consistently had lower yields than ploughed plots.
- Intervention effect Deep ploughing and ploughing showed no consistent difference in barley yields.
- Intervention effect Tillage and previous sward had strong interactive effects on barley in 1997.
- Intervention effect Winter barley yields were higher than spring barley at the same fertilizer N level.
- Intervention effect Nitrate leaching was least under no-tillage, and the difference was not significant.
- Observation Annual nitrate leaching losses from the barley trials were relatively small, 6·4–19·6 kg N/ha.
- Intervention effect In 1996–97, more N was leached from stubble after spring barley than from plots planted with winter barley.
- Intervention effect In 1997–98, more N was leached from winter barley plots than from over-winter stubble.