Tillage farming damaging earthworm populations

https://www.sciencedaily.com/releases/2017/05/170508095152.htm

The digging, stirring and overturning of soil by conventional ploughing in tillage farming is severely damaging earthworm populations around the world, say scientists. The findings show a systematic decline in earthworm populations in soils that are ploughed every year. The deeper the soil is disturbed the more harmful it is for the earthworms.

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