Claim · model-written summary
rates of brown rice increased with nitrogen application by 3.3%-4.2% at 337.5 versus 0 kg x hm(-2).
- Taxon
- rice
Oryza sativae0 - Treatment
- N applicatione0
- Outcome
- rates of brown ricee0
- Direction
- increasede0
- Value
- 3.3%-4.2%e0
- Comparator
- 0 kg x hm(-2) N levele0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of N application, the rates of brown rice, milled rice, head milled rice and the protein content of the five super japonica rice cultivars were all increased, and the rates of brown rice, milled rice, head milled rice and the protein con- tent were higher at 337.5 kg x hm(-2) N level than at 0 kg x hm(-2) N level by 3.3%-4.2%, 2.9%-6.0%, 4.4%-33.7% and 23.8%-44.3%, respectively.”
Title
Hai-Yan Wei; Ya-Jiang Wang; Tian-Yao Meng; et al. PubMed 2014
Other claims from this paper (16)
- Intervention effect Rice yields first increased and then declined as nitrogen rate rose, peaking at 300 kg x hm(-2) with 10.33-10.60 kg x hm(-2).
- Intervention effect Rice spikelet number was highest at 300 kg x hm(-2) nitrogen.
- Intervention effect milled rice increased with nitrogen application by 2.9%-6.0% at 337.5 versus 0 kg x hm(-2).
- Intervention effect head milled rice increased with nitrogen application by 4.4%-33.7% at 337.5 versus 0 kg x hm(-2).
- Intervention effect protein content increased with nitrogen application by 23.8%-44.3% at 337.5 versus 0 kg x hm(-2).
- Intervention effect amylose content decreased with nitrogen application by 12.4%-38.9% at 337.5 versus 0 kg x hm(-2).
- Intervention effect gel consistency decreased with nitrogen application by 10.3%-28.5% at 337.5 versus 0 kg x hm(-2).
- Intervention effect taste value decreased with nitrogen application by 20.3%-29.7% at 337.5 versus 0 kg x hm(-2).
- Observation Rice chalkiness first increased and then decreased.
- Observation Change in rice chalky rate varied among cultivars.
- Intervention effect N use efficiency decreased as nitrogen application increased.
- Intervention effect agronomic N use efficiency decreased as nitrogen application increased.
- Intervention effect physiological N use efficiency decreased as nitrogen application increased.
- Intervention effect N uptake of grain increased as nitrogen application increased.
- Observation Accounting for fertilizer cost, optimal economic benefit was estimated at 275.68 kg x hm(-2) nitrogen and a yield of 9.97 t x hm(-2).
- Recommendation Authors recommend differentiated nitrogen management to balance rice yield, quality, efficiency, and input.