Claim · model-written summary
Nitrogen fertilization significantly increased grain yield.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Nitrogen fertilization significantly increased dry matter and grain yield.”
t0“LOWLAND RICE”
Title
LOWLAND RICE RESPONSE TO NITROGEN FERTILIZATION
N. K. Fageria; V. C. Baligar Communications in Soil Science and Plant Analysis 2001. doi:10.1081/css-100104202
Other claims from this paper (19)
- Intervention effect Nitrogen fertilization significantly increased rice dry matter.
- Observation In year one, 120 kg N ha−1 produced 90% of maximum grain yield, 6400 kg ha−1.
- Observation In year two, 90 kg N ha−1 produced 90% of maximum yield, 6345 kg ha−1.
- Observation Nitrogen treatments significantly affected rice yield components.
- Association Panicle length correlated with grain yield at r=0.70.
- Association Panicle number correlated with grain yield at r=0.78.
- Observation Maximum grain yield across three years occurred near 583 panicles per square metre.
- Observation At the highest nitrogen rate, dry matter production across three years was 9423 kg ha−1.
- Observation At the highest nitrogen rate, grain yield across three years was 6389 kg ha−1.
- Observation Rice accumulated the reported N, P and K quantities at the reported yield.
- Observation Rice accumulated the reported Ca, Mg and Zn quantities.
- Observation Rice accumulated the reported Mn, Cu and Fe quantities.
- Observation Rice accumulated 104 g B.
- Association Nitrogen use efficiency decreased as nitrogen rate rose.
- Observation Average agronomic efficiency was 23 kg grain per kg nitrogen applied.
- Observation Physiological efficiency was 146 kg biological yield per kg accumulated nitrogen.
- Observation Average agrophysiological efficiency was 63 kg grain per kg accumulated nitrogen.
- Observation Apparent nitrogen recovery was 39%; nitrogen utilization averaged 58 kg grain per kg nitrogen used.
- Observation Higher nitrogen rates lowered soil pH and calcium and raised Al3+ after the third crop.