Claim · model-written summary
Amino acid urea gave its highest rice yield at 180 kg N·hm-2.
- Taxon
- rice
Oryza sativat0 - Treatment
- amino acid ureae0
- Outcome
- yieldse0
- Direction
- higheste0
- Value
- 180 kg N·hm-2e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for the treatments of humic acid urea and amino acid urea,the highest yields was obtained in the treatments of medium N rates(180 kg N·hm-2)”
t0“rice”
Title
Chunyan Wu Acta Agriculturae Zhejiangensis 2013
Other claims from this paper (19)
- Intervention effect Rice grain yield increased with nitrogen rate under common urea.
- Intervention effect Rice grain yield increased with nitrogen rate under seaweed urea.
- Intervention effect Humic acid urea gave its highest rice yield at 180 kg N·hm-2.
- Observation Aboveground rice nitrogen uptake with seaweed urea was 253.5 kg N·hm-2.
- Observation Aboveground rice nitrogen uptake with humic acid urea was 242.1 kg N·hm-2.
- Observation Aboveground rice nitrogen uptake with common urea was 236.8 kg N·hm-2.
- Observation Aboveground rice nitrogen uptake with amino acid urea was 230.8 kg N·hm-2.
- Association Total nitrogen uptake increased with nitrogen rate.
- Association Nitrogen demand per 100 kg rice grain increased with nitrogen rate.
- Association Dry matter production efficiency decreased with nitrogen rate.
- Association Rice grain production efficiency decreased with nitrogen rate.
- Association Nitrogen harvest index decreased with nitrogen rate.
- Association Nitrogen use efficiency decreased with nitrogen rate.
- Association Internal nitrogen use efficiency decreased with nitrogen rate.
- Association Rice grain yield correlated with nitrogen demand per 100 kg grain and dry matter production efficiency.
- Association Rice grain yield correlated with grain production efficiency and nitrogen use efficiency.
- Association Rice grain yield correlated with internal nitrogen harvest index.
- Recommendation The authors recommend 180 kg N·hm-2 for three novel synergistic urea fertilizers.
- Intervention effect At 180 kg N·hm-2, novel synergistic urea gave a greater yield increase than common urea.