Claim · model-written summary
Increasing N rate increased grain yield until it plateaued.
- Taxon
- durum wheat
Triticum turgidum subsp. durumt0 - Treatment
- N fertilizer ratee0
- Outcome
- grain yielde0
- Direction
- increased and then plateauede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the N fertilizer rate increased, grain yield, GNC, and total N uptake increased and then plateaued”
t0“Durum Wheat”
Title
Cultivar and N Fertilizer Rate Affect Yield and N use Efficiency in Irrigated Durum Wheat
Zhejun Liang; Kevin F. Bronson; Kelly R. Thorp; et al. Crop Science 2014. doi:10.2135/cropsci2013.03.0159
Other claims from this paper (14)
- Observation Recovery efficiency of N fertilizer ranged from 63 to 79%.
- Association Durum wheat cultivars differed in grain N concentration in both seasons.
- Association Cultivars differed in grain yield in 2011 to 2012.
- Association Cultivars differed in agronomic efficiency, NUE, and N harvest index in 2011 to 2012.
- Intervention effect Increasing N rate increased grain N concentration until it plateaued.
- Intervention effect Increasing N rate increased total N uptake until it plateaued.
- Intervention effect Agronomic efficiency declined linearly as N rate increased.
- Intervention effect N utilization efficiency declined linearly as N rate increased.
- Intervention effect N uptake efficiency decreased as a power function with increasing N fertilizer rates.
- Intervention effect NUE decreased as a power function with increasing N fertilizer rates.
- Association Durum wheat NUE was more closely related to N uptake efficiency than to N utilization efficiency.
- Association N harvest index responded quadratically to N rate in both years.
- Association N fertilizer effects were more significant than cultivar effects.
- Recommendation Grower decisions on optimal N rate will have more impact than cultivar selection.