Claim · model-written summary
Agronomic and recovery nitrogen use efficiencies and unaccounted nitrogen did not differ significantly between mineral and slurry at the same ammonium rate.
- Taxon
- rice
Oryza sativae1 - Treatment
- PS strategiese0
- Outcome
- Agronomic and recovery N use efficiencies and unaccounted Ne0
- Direction
- not significantly differente0
- Qualifier
- same ammonium N ratee0
- Comparator
- minerale0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Agronomic and recovery N use efficiencies and unaccounted N were not significantly different between mineral and PS strategies when the same ammonium N rate was applied”
e1“rice to different fertilisation strategies”
Title
B. Moreno-García; M. Guillén; D. Quílez Field Crops Research 2017. doi:10.1016/j.fcr.2017.01.023
Other claims from this paper (10)
- Intervention effect Plant density, weeds, pests, disease, head rice yield and rice quality did not differ by nitrogen source.
- Intervention effect Both pig slurry strategies attained maximum rice yields of 5567–8235 kg ha−1, varying by year.
- Intervention effect PS170 reached maximum yields without top dressing in all three years.
- Observation PS120 required nitrogen top dressing to reach maximum yields.
- Observation PS170 had a nitrogen fertiliser replacement value of 87% of applied ammonium nitrogen.
- Observation PS120 had a nitrogen fertiliser replacement value of 96% of applied ammonium nitrogen.
- Observation The replacement values of the two slurry strategies did not differ significantly.
- Recommendation Authors recommend setting pig slurry rates by ammonium nitrogen content.
- Observation Nitrogen use efficiencies decreased when total rather than ammonium nitrogen was considered.
- Mechanism Authors infer that organic nitrogen is not taken up by rice during the crop season.