Claim · model-written summary
Agronomic and economic nitrogen use efficiencies were higher at NF3 (N 150 kg ha-1).
- Taxon
- rice
Oryza sativat0 - Treatment
- NF3 (N 150 kg ha -1 )e0
- Outcome
- Agronomic and economic nitrogen use efficienciese0
- Direction
- highere0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agronomic and economic nitrogen use efficiencies were higher at NF3 (N 150 kg ha -1 )”
t0“field grown transplanted rice (Oryza sativa L.)”
Title
Shakeel Ahmad; Ashfaq Ahmad; Muhammad Zia Ul Haq; et al. Journal of Food Agriculture & Environment 2009
Other claims from this paper (10)
- Intervention effect Cumulative intercepted PAR varied from 990 to 1016 MJ m-2 across nitrogen fertilizer levels.
- Intervention effect Plant density did not significantly affect radiation conversion efficiency in both seasons, which ranged from 1.26 to 1.28 g MJ-1.
- Intervention effect Mean RCE for cumulative above-ground total dry matter ranged from 1.15 to 1.36 g MJ-1 among fertilizer levels.
- Intervention effect Increasing density from one to three seedlings per hill significantly increased cumulative intercepted PAR.
- Intervention effect Increasing irrigation significantly and linearly enhanced RCE for CATDM, ranging from 1.34 to 1.49 g MJ-1.
- Intervention effect Cumulative crop evapotranspiration varied from 540 to 575 mm among densities.
- Intervention effect Cumulative crop evapotranspiration varied from 464 to 632 mm among irrigation regimes.
- Intervention effect Water use efficiency varied from 23.1 to 23.7 kg ha-1 mm-1 among densities.
- Intervention effect WUE for CATDM decreased with increasing irrigation, ranging from 25.2 to 21.9 kg ha-1 mm-1.
- Association CATDM production was linearly related to cumulative leaf area duration and CIPAR in Experiment 1.