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Minimal Tillage is Fundamental #8. It will preserve soil life and structure, save labor and increase profits. The soil food web is disturbed when continual plowing is practiced. The hoofs of the carabao (water buffalo) or tractor compact the soil while the plow causes disruption in microorganism activity.

As the soil compacts, a pan develops, where sub soil at the depth of the plow can form a barrier layer that roots cannot penetrate. Then rainwater is kept from penetrating the ground and easily floods. The water is stuck at the upper levels of the soil. So are the earthworms.