Claim · model-written summary
The zero copper and 80% recommended nitrogen control had the lowest grain yield.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- zero copper applicatione0
- Outcome
- grains yielde0
- Direction
- loweste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the lowest grains yield was obtained in the control (zero copper application) at the lowest rate of nitrogen fertilization (80% of R.D.).”
t0“Wheat”
Title
M. A., Abd EL-Aziz; Omar, E. H.; Ragab, M. M. S.; et al. Alexandria Science Exchange Journal 2008. doi:10.21608/asejaiqjsae.2008.3187
Other claims from this paper (13)
- Intervention effect Higher nitrogen rate up to 120% of the recommended dose significantly increased wheat grain yield.
- Intervention effect Increasing copper application from 0.5 to 1.0 kg Cu /fed increased wheat grain yield.
- Intervention effect Copper application in two split doses gave greater grain yield than application at early boating, which exceeded application at tillering.
- Association Increasing nitrogen constrained the copper associated wheat yield increment.
- Intervention effect The combination of 120% recommended nitrogen and 1.0 kg Cu/ fed in split doses gave the highest grain yield.
- Intervention effect The 100% nitrogen plus 1.0 kg copper split dose treatment outperformed 120% nitrogen without copper.
- Observation Wheat straw yield, height and spike length followed the grain yield trend.
- Observation Wheat tiller number followed the grain yield trend.
- Intervention effect Grain N, P and K contents increased as nitrogen application rose to 120% of the recommended dose.
- Intervention effect Grain protein content increased as nitrogen application rose to 120% of the recommended dose.
- Intervention effect Split copper application yielded higher grain nitrogen content than early boating or tillering application.
- Intervention effect Copper application timing did not affect grain phosphorus and potassium contents.
- Observation Grain N, P and K uptake followed the trend of grain nutrient and protein content.