Fertilizer – dose, yield and nutrient loss

ChemistryApplied & Practical ChemistryAges 16–17

Choose a fertilizer (urea, ammonium nitrate, superphosphate, KCl) and a dose per hectare. The simulation converts it to the actual nutrient content, plots the yield curve against dose — rising then levelling off — and shows how the excess runs off and causes eutrophication in nearby water.