Study

Arbuscular mycorrhizal fungi and nematodes are involved in negative feedback on a dual culture of alfalfa and Russian wildrye

  • Published source details Atul N., Hamel C., Forge T., Selles F., Jefferson P.G., Hanson K. & Germida J. (2008) Arbuscular mycorrhizal fungi and nematodes are involved in negative feedback on a dual culture of alfalfa and Russian wildrye. Applied Soil Ecology, 40, 30-36

Actions

This study is summarised as evidence for the following.

Action Category

Use mixed pasture

Action Link
Natural Pest Control
  1. Use mixed pasture

    A randomised, replicated, controlled trial in 2004 at the Semiarid Prairie Agricultural Research Centre in Saskatchewan, Canada (Atul et al. 2008) found the total number of nematodes (Nematoda) and nematode diversity in the top soil layer was significantly higher in plots of mixed pasture than monoculture. There were 901 nematodes/100 g dry soil in mixed pasture compared to 681 in monoculture. Fungus-feeding (199 vs. 170 nematodes) and omnivorous (380 vs. 100) nematodes were significantly more abundant in mixed pasture than monoculture. The number of plant parasitic nematodes was not significantly different in mixed pasture than monoculture (48 vs. 30 nematodes/100 g). There were two treatments in four blocks: alfalfa Medicago sativa monoculture and mixed pasture of alfalfa and Russian wildrye Psathyostachys juncea. Plots were 1.8 x 6 m, established in 1997 and seeded at 25 seeds/30 cm in 30 cm-wide rows. Two 5 cm-diameter samples of the top 7.5 cm soil layer were taken in each plot, on three occasions (30 June, 1 and 30 September). Nematodes were extracted using the sieving-Baermann funnel technique.

Output references

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, terrestrial 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 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

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