Intervention effectmodel-written summary

Fertilization enhanced graminoid, forb, and total herb biomass.

A claim from Long-term influence of stand thinning and repeated fertilization on forage production in young lodgepole pine forests · 2017

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilization enhanced graminoid, forb, and total herb biomass.

Taxon
lodgepole pinePinus contortat0
Treatment
fertilizatione0
Outcome
mean biomass estimates of graminoids, forbs, and total herbse0
Direction
enhancede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Pinus contorta
Pinus contorta · TaxonWalter Siegmund · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“fertilization enhanced mean biomass estimates of graminoids, forbs, and total herbs, but not shrubs.”

✓ located verbatim in the source · abstract, characters 885–985
t0

“lodgepole pine”

✓ located verbatim in the source · title, characters 95–109

Title

Long-term influence of stand thinning and repeated fertilization on forage production in young lodgepole pine forests

Pontus M.F. Lindgren; Thomas P. Sullivan; Douglas B. Ransome; et al. Canadian Journal of Forest Research 2017. doi:10.1139/cjfr-2016-0507

Other claims from this paper (3)

Record rev-d7f4f1418b9ad801c1c9631a316adae752f7e32280dc1bba38ef5bc958b96a0a · schema claims-v0.9 · position 2 in the model’s answer

fertilization · growth · Pinus contorta (lodgepole pine)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this claim

  1. positive
    Complete fertilizer produced a slightly larger stem growth response.

    Response of thinned, immature lodgepole pine to nitrogen and boron fertilization · 1990

    Same direction

  2. positive
    Nitrogen fertilizer significantly increased pine shoot growth for four years.

    Effect of Different Forms and Rates of Nitrogen Fertiliser on the Growth of Lodgepole Pine · 1982

    Same direction

  3. positive
    Height and diameter growth of lodgepole pine increased significantly in all refertilization treatments between 1985 and 1991 compared with control.

    Effects of Refertilization on Growth and Nutrition of Lodgepole Pine (Pinus contorta Dougl.) Planted on a Minerotrophic Peatland in Central Newfoundland, Canada · 1994 · compared with control

    Same direction

  4. positive
    Fertilizer raised volume growth on thinned plots to 5 m3/ha/year.

    The influence of nutrition and density on repressed lodgepole pine · 2009 · compared with thinned plots

    Same direction

See all 5 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.