Could wax-covered sand replace plastic sheeting as a moisture-saving ground cover?

[Tracy Mumma]

American Chemical Society reported on research that suggests paraffin wax-covered sand could act as a ground cover that keeps moisture in, improving crop yields in arid areas. Read more about it in this press release: https://www.acs.org/content/acs/en/...ger-improves-crop-yields-in-arid-regions.html