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Grow as you go: ‘Peecycling’ helps plants and compost thrive

Human urine?

Urine may not be the most obvious fertilizer, but it’s one of the most readily available

A pair of sensors measure the electrical conductivity in a plant or compost pile’s leachate (the liquid collected from the soil) as well as the soil’s moisture level. [Sreang Hok/Cornell University]


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