Water: More crop per drop

  • 19/03/2008

  • Nature

Water (either from the sky or the irrigation canal) is often a key factor in determining crop yields, squeezing more crop out of the same drop will be central to one of the biggest challenges of this century: sustainably feeding a population of perhaps 9 billion people in a climate-changed world where rain, temperature and drought will be increasingly erratic. March 20, 2008