disc plough 325

Disc ploughs break up undisturbed soil by inverting it to bury surface weeds and trash. Regular use of disc ploughs reduces soil aggregates to small particles and produces a compacted layer or plough pan which prevents air, water or roots penetrating the subsoil. When it rains, soil particles on the surface collapse together to form a crust which repels air and water and is difficult for seedlings to break through.

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