Perennial vegetative strips promote spillover of beneficial soil microorganisms into adjacent crop field.
Abeyawardana OAJ, Řezáč M, Řezáčová V
Soil Health
That weedy hedgerow or wildflower strip at the edge of a farm field isn't just pretty—it's quietly seeding the surrounding soil with fungi and bacteria that help crops feed themselves, and the closer you are to it, the richer your soil biology.
Researchers planted perennial flower and grass strips alongside farm fields, then measured the soil life at increasing distances from those strips. They found that helpful soil fungi—the kind that connect to plant roots and help them absorb water and nutrients—were most abundant near the strips and dropped off the farther you got into the crop field. Importantly, the plant strips boosted beneficial microbes without encouraging any harmful ones, suggesting they make soils more resilient overall.
Key Findings
Microbial biomass in the soil declined with increasing distance from perennial strips, a pattern primarily driven by arbuscular mycorrhizal fungi (AMF).
Abundance of nitrogen-fixing bacteria, photosynthetic cyanobacteria, and root-colonizing endophytes all significantly decreased with distance from the perennial strips across five study fields.
Perennial vegetative strips promoted more even microbial communities and did not increase bacterial or fungal pathogen abundance, suggesting enhanced resistance to disease invasion.
chevron_right Technical Summary
Strips of perennial plants bordering crop fields act as living reservoirs of beneficial soil microbes—including fungi that help plants absorb nutrients and bacteria that fix nitrogen—and these microbes spill over into adjacent farmland, improving soil health without increasing disease risk.
Abstract Preview
Perennial vegetative strips (PVS) are increasingly integrated into agricultural landscapes to enhance biodiversity and ecosystem functioning. However, their below-ground influence, particularly the...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Was this useful?
Chloroplast Genome Editing Eliminates Gluten Immunogenicity in Triticum aestivum
It could mean that people with celiac disease — roughly 1 in 100 worldwide — may one day safely eat bread made from real wheat, without sacrificing the taste...