Claim · model-written summary
Treatment with 120 mg N/kg significantly improved spinach leaf nitrate nitrogen concentration and ascorbic acid quality.
- Taxon
- spinach
Spinacia oleraceat0 - Treatment
- 120 mg N/kge0
- Outcome
- leaf nitrate-N concentration and ascorbic acide0
- Direction
- improvede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results suggest that treatment with 120 mg N/kg significantly improved both leaf yields and leaf quality (i.e., leaf nitrate-N concentration and ascorbic acid).”
t0“Spinach”
Title
Yan-Ju Liu; Yi-Ping Tong; Yong-Guan Zhu; et al. Journal of Plant Nutrition 2006. doi:10.1080/01904160600767401
Other claims from this paper (9)
- Association SPAD readings fell as spinach growth progressed regardless of N application.
- Association At harvest, SPAD readings were significantly correlated with total leaf nitrogen.
- Association At harvest, SPAD readings were significantly correlated with leaf dry weight.
- Association At harvest, SPAD readings were significantly correlated with nitrate nitrogen concentration.
- Association SPAD readings did not correlate with spinach leaf ascorbic acid concentration.
- Recommendation The authors proposed SPAD readings to estimate spinach nitrate nitrogen.
- Recommendation The authors proposed SPAD readings as a guide to harvest timing.
- Intervention effect Treatment with 120 mg N/kg significantly improved spinach leaf yield.
- Observation Both insufficient and excessive nitrogen fertilizer were unfavorable for spinach yield and quality.