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Why Amended Clay Soil Reverts Over Time and How to Maintain It Without Tilling

Compost decomposes: some erodes, some becomes humus (fine, nutrient-holding but compacts with clay). The soil reverts. Fix without tilling: annually spread 1 inch of composted cow manure under perennials/shrubs (keep off stems), cover with pine straw. Earthworms incorporate it over summer. Repeat every 3 years. The initial tilling was essential to oxygenate the soil; now just feed the soil life.

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