Claim · model-written summary
Moderate nitrogen improved tuber crude protein, starch, and soluble sugar content.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- moderate nitrogen application ratee0
- Outcome
- contents of crude protein, starch, and soluble sugare0
- Direction
- improvede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“A moderate nitrogen application rate improved tuber quality, including the contents of crude protein, starch, and soluble sugar.”
t0“sweet potato”
Title
Youliang Zhang; Yongqi Tang; Zhaohui Wang; et al. Agricultural Water Management 2024. doi:10.1016/j.agwat.2024.108997
Other claims from this paper (9)
- Intervention effect The 180 kg hm −2 nitrogen treatment had lower soil water content than the 90 and 270 kg hm −2 treatments.
- Intervention effect Increasing nitrogen application increased soil nitrogen content and residue at 0–40 cm.
- Intervention effect The 180 kg hm −2 treatment had significantly lower soil nitrate-N residue than the 270 kg hm −2 treatment.
- Intervention effect Sweet potato growth, tuber dry matter, large and medium tuber number and weight, and yield rose and then fell as nitrogen rates increased.
- Intervention effect At 60 % soil wetting, tuber yield was higher with 180 kg hm −2 nitrogen than with 90 or 270 kg hm −2.
- Intervention effect Under 60 % soil wetting, nitrogen use efficiency and uptake rose and then fell as nitrogen rates increased.
- Intervention effect Irrigation increased nitrogen uptake efficiency and nitrogen use efficiency.
- Intervention effect At 180 kg hm −2 nitrogen, 30 % and 60 % soil wetting had higher nitrogen use efficiency than no irrigation.
- Recommendation The authors identify 180 kg/hm 2 nitrogen with 60 % soil wetting as suitable for local sweet potato cultivation.