The Formation of Vegetable Mould, Through the Action of Worms
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Charles Darwin's work, The Formation of Vegetable Mould, Through the Action of Worms, details the significant role earthworms play in soil formation and fertility. Darwin observed that earthworms ingest soil and organic matter, passing it through their digestive systems. This process aerates the soil, improves drainage, and breaks down organic material, enriching the soil with nutrients usable by plants.12
Darwin estimated that earthworms can process an amount of soil equivalent to the entire top layer of the planet every decade. This continuous activity contributes to the creation of humus and the overall health and structure of the soil, making it more fertile and supportive of plant life.12
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