Claim · model-written summary
Under field conditions, SA spraying on spinach with urea-only fertilizer reduced nitrate to minimum levels (679.0 mg/kg FW).
- Taxon
- spinach
Spinacia oleraceae3 - Treatment
- using only urea fertilizere0
- Outcome
- nitratee4
- Direction
- decreased to minimum levelse7
- Value
- 679.0e7
- Qualifier
- sprayed with 20 and 5 μM-SAe2
- Setting
- field conditionse1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“in both spinach and parsley, respectively”
e7“decreased to minimum levels, 679.0 and 395.6 mg kg-1 FW”
e0“using only urea fertilizer”
e1“Under field conditions”
e2“sprayed with 20 and 5 μM-SA”
e4“nitrate was”
Title
Elwan M.; M. Elhamahmy Hortscience Journal of Suez Canal University 2015. doi:10.21608/hjsc.2015.6476
Other claims from this paper (15)
- Intervention effect In a pot experiment, ammonium sulfate-fertilized spinach gave maximum yield compared with urea-fertilized spinach.
- Observation Ammonium sulfate-fertilized spinach had high nitrate content (942.6 mg/kg FW) in the pot experiment.
- Intervention effect Application of 5 μM SA reduced nitrate content of spinach by 18% in ammonium sulfate-fertilized plants.
- Intervention effect Application of 5 μM SA reduced nitrate content of urea-fertilized spinach by 50%.
- Intervention effect SA at 20 μM raised nitrate reductase activity in spinach by 74% over control.
- Intervention effect SA spraying increased marketable yield and vitamin C of spinach.
- Intervention effect In a pot experiment, ammonium sulfate-fertilized parsley gave maximum yield compared with urea-fertilized parsley.
- Observation Ammonium sulfate-fertilized parsley had high nitrate content (604.5 mg/kg FW) in the pot experiment.
- Intervention effect Application of 5 μM SA reduced nitrate content of parsley by 10% in ammonium sulfate-fertilized plants.
- Intervention effect Application of 5 μM SA reduced nitrate content of urea-fertilized parsley by 7%.
- Intervention effect Under field conditions, SA spraying on parsley with urea-only fertilizer reduced nitrate to minimum levels (395.6 mg/kg FW).
- Intervention effect SA at 5 μM raised nitrate reductase activity in parsley by 60%.
- Intervention effect SA spraying increased marketable yield and vitamin C of parsley.
- Association The reduction in nitrate in spinach and parsley was associated with induction of nitrate reductase activity.
- Recommendation SA application kept nitrate content of spinach and parsley within a safe limit for human consumption.