We rely on high yields to feed a population of 7 billion, and these are made possible by our ability to create an ideal environment for the crop. Ironically, the methods used to do this can create conditions which are increasingly unsuitable for growing crops in.
To combat drought we add water, causing problems such as water shortages and soil salinisation. To ensure that a crop’s nutritional needs are met we add fertilisers containing nitrogen, potassium and phosphorus. Continue reading