Claim · model-written summary
Simulations indicated nitrogen limitation without fertilizer across sites and weather conditions for rice and wheat.
- Taxon
- Rice
Oryza sativat0 - Treatment
- without N fertilizer applicatione0
- Outcome
- N will be limitinge0
- Setting
- across sitese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without N fertilizer application, N will be limiting across sites and long‐term weather conditions for both rainfed and irrigated crops.”
t0“Rice‐Wheat Sequence”
Title
Cultivar, Nitrogen, and Moisture Effects on a Rice‐Wheat Sequence: Experimentation and Simulation
Jagadish Timsina; Upendra Singh; Mohammed Badaruddin; et al. Agronomy Journal 1998. doi:10.2134/agronj1998.00021962009000020001x
Other claims from this paper (15)
- Intervention effect Rainfed BR14 rice yield fell by 48.8% against irrigated plots at 0 N.
- Intervention effect Rainfed BR14 rice yield fell by 43.4% against irrigated plots at 90 kg N ha −1.
- Intervention effect Rainfed BR14 rice yield fell by 39.3% against irrigated plots at 135 kg N ha −1.
- Intervention effect Rainfed BR11 rice yield fell by 49.1% against irrigated plots at 0 N.
- Intervention effect Rainfed BR11 rice yield fell by 43.8% against irrigated plots at 90 kg N ha −1.
- Intervention effect Rainfed BR11 rice yield fell by 42.2% against irrigated plots at 135 kg N ha −1.
- Observation The optimum rice N rate was between 90 and 135 kg ha −1.
- Intervention effect At 0 N, wheat yield did not differ significantly between moisture regimes.
- Intervention effect At 180 kg N ha −1, irrigation increased wheat yield.
- Intervention effect At 0 N, irrigated Kanchan wheat yield was reduced 73.0% at early planting against high N.
- Intervention effect At 0 N, irrigated Kanchan wheat yield was reduced 71.6% at late planting against high N.
- Intervention effect At 0 N, irrigated Sowgat wheat yield was reduced 75.2% at early planting against high N.
- Intervention effect At 0 N, irrigated Sowgat wheat yield was reduced 73.5% at late planting against high N.
- Observation Simulated rice yield tended to increase over years.
- Observation Simulated wheat yield had no definite trend over years.