Claim · model-written summary
Fertilizer raised volume growth on thinned plots to 5 m3/ha/year.
- Taxon
- lodgepole pine
Pinus contortat0 - Treatment
- fertilizere0
- Outcome
- Volume growthe1
- Direction
- increasede1
- Value
- 5 m3/ha/yeare0
- Comparator
- thinned plotse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“lodgepole pine”
e0“to 5 m3/ha/year when fertilizer was applied to thinned plots”
e1“Volume growth was increased from 2 to 7 m /ha/year with nutrient additions on non-thinned plots”
Title
The influence of nutrition and density on repressed lodgepole pine
Blevins, David Preston cIRcle (University of British Columbia) 2009. doi:10.14288/1.0075078
Other claims from this paper (9)
- Intervention effect Nutrient addition increased stand volume growth from 2 to 7 m /ha/year on unthinned plots.
- Intervention effect Thinning increased tree-level foliage biomass and growth efficiency.
- Intervention effect Nitrogen, sulfur and boron additions improved tree and stand growth through greater foliage biomass and growth efficiency.
- Association Fertilization and thinning had additive growth effects.
- Observation More fascicles contributed more than fascicle weight to foliage biomass responses.
- Observation With fertilizer, more foliated branches contributed more than foliage per branch to the foliage biomass increase.
- Observation Under thinning, branch number and foliage per branch contributed nearly equally to foliage biomass increase.
- Intervention effect Treatments had no effect on foliage biomass at the bottom of the live crown or its position.
- Observation The number of cohorts declined toward the base of the live crown.