Claim · model-written summary
Molybdenum increased lettuce yield and hearting under the heaviest Nitrochalk dressing.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- addition of Moe0
- Outcome
- yield and proportion of hearted lettucee0
- Direction
- increasede0
- Qualifier
- heaviest dressing of Nitrochalke0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and proportion of hearted lettuce were increased by the addition of Mo in plots receiving the heaviest dressing of Nitrochalk.”
Title
Some Responses of Lettuce, Grown in Beds of Peat, to Nitrogen, Potassium, Magnesium and Molybdenum
P. Adams; C. J. Graves; G. W. Winsor Journal of Horticultural Science 1978. doi:10.1080/00221589.1978.11514829
Other claims from this paper (10)
- Intervention effect Applied nitrogen increased lettuce yield and hearting until peat reached 60 mg N I-1.
- Mechanism Higher nitrogen concentrations were unfavorable in two crops because peat acidity increased manganese uptake.
- Association Lettuce yield and hearting and marketability declined as leaf manganese increased.
- Intervention effect The third crop had little nitrogen response between 60 and 250 mg N I-1.
- Intervention effect Potassium improved yield and quality up to 200 mg K I-1 in peat.
- Intervention effect Potassium up to 600 mg K I-1 had little further yield or quality effect.
- Observation Leaf nitrogen and potassium at maximum yield were 5% and 8%, respectively.
- Intervention effect Added magnesium produced no lettuce response.
- Intervention effect The greatest increase in hearted lettuce occurred with both molybdenum and sulphur-coated urea.
- Association Water-soluble peat phosphate rose from 19 to over 50 mg P I-1 as peat pH declined with nitrogen application.