Without fertiliser your yields go down. If your yields go down, then there’s less grain or rice or any food on the market,” said Philip Sunderland, a fertiliser trader at Aquifert.

This hands-on learning opportunity, from March 30 to April 3, features global leaders in microirrigation and combines cutting-edge science, real-world applications and field experience.

Lord Falmouth’s estate has applied for outline planning permission to build up to 120 new homes on land it owns.