Study

Long-term plant establishment on mined lands in southeastern Montana

  • Published source details Holechek J.L., DePuit E.J., Coenenberg J. & Valdez R. (1982) Long-term plant establishment on mined lands in southeastern Montana. Journal of Range Management, 35, 522-525.

Actions

This study is summarised as evidence for the following.

Action Category

Add fertilizer to soil before or after seeding/planting

Action Link
Grassland Conservation
  1. Add fertilizer to soil before or after seeding/planting

    A replicated, randomized, paired, controlled study in 1975–1980 in a former coal mine in Montana, USA (Holechek et al. 1982) found that adding fertilizer after sowing seeds increased the cover, but not the density, of four sown plant species compared to sowing without fertilizer. After five years, average cover of four sown plant species (thickspike wheatgrass Elymus lanceolatus, crested wheatgrass Agropyron cristatum, alfalfa Medicago sativa, and fourwing saltbush Atriplex canescens) was higher in plots where fertilizer was added and seeds were sown (10–43%) than in plots where seeds were sown without fertilizer (2–28%). However, the average density of each of the four sown species did not differ significantly between fertilized (12–88 plants/m2) and unfertilized plots (8–82 plants/m2). In 1975, eight 9 x 10 m plots were each sown with thickspike wheatgrass, crested wheatgrass, alfalfa, or fourwing saltbush seeds. Nitrogen and phospohorus fertilizer was applied to 12 of the plots, while 12 plots had no fertilizer applied. In July 1980, plant density and cover were estimated in at least 14–16 randomly placed 20 x 20–50 cm quadrats/plot.

    (Summarised by: Philip Martin)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 18

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust