A simple experiment can help farmers determine how healthy their soil is for planting: bury a pair of cotton underpants! Healthy dirt is full of microbes that feed on the cotton fibers in the pants, breaking them down over several weeks. The “Soil Your Undies Challenge,” first launched in the U.S., asks farmers and others to use this testing method as a way of raising public awareness of the importance of healthy soil and the need to protect it. Listen to an Australian scientist explain how he organized the challenge in his country and why he invited schools to participate.
Story Length: 3:57
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