One filament that we've tried is available on the market, PHA, and it's a biodegradable filament made by bacteria. We're placing flower seeds into the beads." Strain says that the 3D-printed ...

So far, sweet pea seeds have yielded the best harvest ... The lab also hopes to make the 3D plans for the beads an ...

Crop fertilizers are a major source of pollution, as the chemicals make their way out of ... Finally, as an added bonus, the beads may also help plants grow by aerating their roots.