Potassium in our soil is running low, threatening global food security – new study proposes a way out

Will Brownlie, UK Centre for Ecology & Hydrology; Mark Maslin, UCL, and Peter Alexander, The University of Edinburgh Soils around the world are running low on potassium, a key nutrient needed for plants to grow. This ultimately means we may not be able to grow enough food for everyone. But it’s not too late: we […]