Claim · model-written summary
P or K application rates did not affect lettuce yield in Salinas.
- Taxon
- Lactuca sativa L.
Lactuca sativae0 - Treatment
- P or K application ratese2
- Outcome
- Yielde2
- Direction
- not affectede2
- Setting
- Salinas, Calife1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lettuce ( Lactuca sativa L.) is an essential salad crop in the American diet”
e1“during fall production in Salinas, Calif”
e2“Yield was increased with increasing N fertilizer level, but was not affected by P or K application rates”
Title
Nitrogen, Phosphorus, and Potassium Fertilization Effects on Nutritional Composition of Lettuce
Murshidul Hoque; Husein Ajwa; Beiquan Mou HortScience 2004. doi:10.21273/hortsci.39.4.872c
Other claims from this paper (7)
- Intervention effect Increasing N fertilizer level increased lettuce yield in Salinas.
- Intervention effect Moderate P application rate gave the best post harvest quality of lettuce.
- Intervention effect Increasing N and P rates gradually increased lettuce glucose content.
- Intervention effect Increasing N and P rates decreased lettuce shelf life.
- Observation Romaine and iceberg lettuce differed significantly in chlorophyll, lutein and beta-carotene content.
- Association No significant correlation was found between soil fertilizer application levels and lettuce nutritional content.
- Intervention effect The chlorophyll a to b ratio was greater with increasing fertilizer rate.