Potassium is decreasing in soil, threatening global food security – new study suggests way.

Will Brownlee: UK Center for Ecology and Hydrology; Mark Maslin, University College of London, and Peter Alexander, The University of Edinburgh)

London, February 20  Soils around the world are becoming deficient in potassium, a key nutrient essential for plant growth. This ultimately means that we will no longer be able to grow enough food for everyone.

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