This Mulch Film Disappears Into the Soil After Harvest
Bumigro is a microbe-edible biodegradable mulch film made from upcycled agricultural biomass that feeds soil, boosts yield, and eliminates plastic removal costs.
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Bumigro
The Hidden Cost of Plastic Mulch That Farmers Pay Every Year
Plastic mulch film is one of agriculture's most
effective and most problematic tools at the same time. It suppresses weeds,
retains moisture, regulates soil temperature, and reliably increases yields,
which is why it has been standard on vegetable farms for decades. The problem
is what happens after the harvest. Every row of plastic mulch has to be pulled
by hand, a process that takes 12 to 18 hours of crew time per acre. The pulled
film, contaminated with soil, plant matter, and residual chemicals, is then
hauled and dumped at a cost of $110 to $240 per load. And even after all of
that, plastic fragments too small to remove remain in the soil, accumulating
across seasons into a microplastic burden that damages earthworms, disrupts
soil biology, and degrades the land's productive capacity over time.
Bumigro was built to replace that entire cycle.
Bumigro biodegradable mulch film delivers the same crop protection as
polyethylene plastic mulch film, without the microplastics, toxins, and cleanup
costs that follow. It is made from upcycled agricultural biomass and formulated
as food, not waste, for naturally occurring soil microbes, meaning that after
the growing season is over, the film itself is broken down by the microbes
already living in the soil and converted into nutrient-rich organic biomass that
feeds the next crop.
How Bumigro Actually Works in the Field
A biodegradable mulch film is only useful to a
farmer if it performs as well as what it is replacing during the season, and
this is where Bumigro's design has been validated in real field conditions.
During the growing season, the film functions exactly like conventional plastic
mulch: it suppresses weeds, retains soil moisture, stabilizes soil temperature,
and creates the protected growing environment that increases yields. Field
tests show an average yield increase of 12% compared to bare ground, while saving
farmers an average of $189 per acre in net gains when the full cost of plastic
mulch removal is factored into the comparison.
After harvest, the process is completely
different. Instead of pulling, hauling, and disposing of the film, the farmer
simply discs the field. Soil microbes then break down the film through natural
biological processes, converting the polymer material into water, carbon
dioxide, and organic biomass rather than leaving plastic fragments behind. ETH
Zurich's peer-reviewed research on PBAT-family bioplastics has confirmed that
polymer carbon transfers into microbial biomass rather than persisting as
fragments, providing independent scientific validation for the breakdown
mechanism. Furthermore, because the film is made from upcycled agricultural
biomass rather than fossil-fuel-derived polymers, it contains none of the
polypropylene, polyethylene, polyethylene terephthalate, polylactic acid,
polyvinyl chloride, or polystyrene that conventional and even many so-called
biodegradable alternatives use.
Why Soil Health and Farm Economics Make the Same Argument
The case for Bumigro is both environmental and
financial, and the two arguments point in the same direction rather than
trading one off against the other. On the environmental side, the FAO has
specifically called for the substitution of conventional agricultural plastics to
cut the approximately 1.2 gigatons of CO₂ equivalent tied to agricultural
plastic use globally. Bumigro's film directly addresses that call by replacing
petroleum-based mulch with a material that ends its life as soil nutrition
rather than landfill waste or persistent microplastic contamination.
On the economic side, the savings are equally
concrete. Eliminating the need to pull and haul plastic mulch removes 12 to 18
hours of crew labor per acre from the post-harvest workload, alongside the
direct tipping fees that plastic disposal generates. Faster field turnaround
after harvest means the next crop can be planted sooner. Increasing microbial
activity in the soil builds the biological health that supports higher yields
in future seasons rather than depleting it as microplastic accumulation does over
time. Growers who have field-tested Bumigro describe the product as both
environmentally responsible and financially practical, noting that for any new
solution to be widely adopted in agriculture, it must make economic sense
alongside its environmental benefits, and Bumigro clears both bars
simultaneously. Recognized as a Top 10 New Product Winner at the 2026 World Ag
Expo, one of the world's largest agricultural trade shows, Bumigro is
positioning itself as the practical, commercially viable replacement for a
product that has caused soil damage on farms worldwide for decades.
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