Claim · model-written summary
Without nitrogen fertilization the quantity and quality of the fruits remained unchanged.
- Taxon
- Bell Peppert0
- Treatment
- Without nitrogen fertilizatione0
- Outcome
- quantity and quality of the fruitse0
- Direction
- unchangede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Without nitrogen fertilization, the quantity and quality of the fruits remained unchanged”
t0“Bell Pepper”
Title
Yield Traits and Water and Nitrogen Use Efficiencies of Bell Pepper Grown in Plastic-Greenhouse
Vincenzo Candido; Vito Miccolis; Anna Rita Rivelli Italian Journal of Agronomy 2009. doi:10.4081/ija.2009.3.91
Other claims from this paper (18)
- Intervention effect The highest bell pepper yield in both years came from combining 100% restitution of ETc with 200 kg N ha-1.
- Observation Marketable yield of bell pepper was 37 t ha-1 in 1998.
- Observation Marketable yield of bell pepper was 72 t ha-1 in 1999.
- Intervention effect The second-year yield doubling was probably due to earlier transplantation and plastic mulching.
- Intervention effect Water deficit imposed from late flowering to early fruit set reduced marketable yield by up to 44%.
- Intervention effect Peppers grown under water stress were richer in dry matter and soluble solids.
- Association The yield decline due to water deficit varied with the N dose, with numerous irrigation by nitrogen interactions.
- Intervention effect The maximum N dose (300 kg ha-1) enhanced the negative effect of water deficit on the number of marketable peppers, at -52%.
- Intervention effect The maximum N dose (300 kg ha-1) enhanced the negative effect of water deficit on the weight of marketable peppers, at -161%.
- Observation Waste peppers reached 31% of total production by weight.
- Observation Over 21% of peppers were affected by blossom-end rot.
- Intervention effect Water stress drastically reduced total above-ground dry biomass (40%).
- Intervention effect Water stress significantly decreased nitrogen absorption by the plant (54%).
- Intervention effect Water stress gave lower Harvest Index values, with preferential translocation of nitrogen towards stems and leaves.
- Observation Above-ground dry matter water use efficiency (AGWUE) remained unchanged.
- Observation Total yield water use efficiency (TYWUE) and marketable yield water use efficiency (MYWUE) decreased.
- Intervention effect A nitrogen dose of 200 kg ha-1 maximized pepper yield and quality, with and without water stress.
- Intervention effect Water and nitrogen use efficiency values were maximal under the 200 kg N ha-1 condition.