Soil compaction is a costly problem for farmers, with studies cited in the report estimating yield reductions of 20% to 60%. Conventional plowing relieves compaction but is laborious and expensive, and can harm soil health in other ways. Muju Earth, a startup founded at Imperial College London, has developed the Aeropod — a fingernail-sized device that farmers drop in the soil alongside their seeds using existing planting equipment, with no need to till in advance.

When exposed to temperature, pressure, and moisture in the soil, the Aeropod bursts open, loosening the soil and creating small channels that let air, water, and roots move through more easily. The company claims this produces results similar to tilling at roughly £100 per hectare, versus the £250 to £400 per hectare that tilling a field once can cost when labor, diesel, and equipment wear are factored in — cutting tilling costs by half or more.

Muju Earth has completed lab testing and is starting paid field trials this fall in the UK with nine onion farmers, since onions are particularly sensitive to soil compaction. The startup has more than 30 farmers on a waitlist. Co-founder and CEO Ifeoluwa Afolayan says farmers intuitively grasp the value proposition, and the company has also heard from biologic amendment makers whose products work best in aerated soil. All figures and claims come from a single TechCrunch report and have not been independently verified.