Fertilisers play an essential role in crop development.
They have been the single most important catalyst in improving crop yields over the past 40-50 years, enabling farmers to produce enough food to support global population growth.
As this article shows, fertilisers are highly energy intensive requiring huge amounts of fossil fuels. Higher energy prices directly feed into an increase in fertiliser prices. Fertilisers make up a significant share of the costs involved with agriculture, and so any increase in cost is likely to be passed onto the next stage in the supply chain and eventually onto the end consumer.