Rethinking catchment management in response to climate change | Phil Mulvey & Richard Campbell

Phil Mulvey joins Tim Thompson in the debut episode of Digging Deeper to discuss how can we restore fragile, sandy soils and stop erosion in its tracks.

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Are you stuck in the “lime every few years” cycle? Phil Mulvey joins Tim Thomposon to unpack how pH really works — from aluminium toxicity and CEC (cation exchange capacity) to buffering and why plant diversity can stabilise pH and rebuild soil structure.

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Soil pH affects everything—from plant growth to stock health. But many farmers don’t realise how dramatic the impacts are… or how to test for it properly. In this episode, we dive into the fundamentals of soil pH, how it works, and how to measure it right on your farm.

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