This film shows how plants need nutrients such as nitrogen, phosphorus and potassium which they extract from soil. The amount of nutrients should be just right. If soil lacks nutrients plants cannot grow and fertilisers need to be added. But if too much fertiliser is added, the excess can leach into rivers and pollute them.
Using a commercial testing kit, Dr Natalia Martsinovich measures how much phosphate nutrient is present in typical garden soil.
Institute for Sustainable Food Research
This project showcases research from the Institute for Sustainable Food - one of the University of Sheffield's four flagship research institutes.
The Flagship Institutes bring together the University's key strengths to tackle global issues, turning interdisciplinary and translational research into real-world solutions.