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Phoenix666 [soylentnews.org] writes:

New bioplastic materials [phys.org] may enable gardeners to tend their plants more sustainably and could even help plants "self-fertilize" and grow healthier roots, according to research conducted by Iowa State University horticulturists.

Bioplastics present a range of environmental advantages, such as improved biodegradability, that conventional petroleum-based plastics can't claim, said William Graves, associate dean of the ISU Graduate College and professor of horticulture. Graves, along with James Schrader, an associate scientist in horticulture, and a team of researchers recently concluded a five-year study of bioplastics in an attempt to identify materials that show promise for horticultural uses, such as the plastic pots and flats that retailers use to sell immature plants.

Bioplastics come from renewable biological sources, such as plants, and large-scale adoption in the marketplace could ease dependence on fossil fuels, he said.

The study looked at numerous options for bioplastic derived from sources such as polylactic acid and the more biodegradable polyhydroxyalkanoates. They also included byproducts that result from the production of corn, soybeans and ethanol.

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