Dr. John Gilliland:

Our current figure is averaging 6.5, so it went from 5.4 to 6.5 in six years. We have a policy of measuring our soil fertility every two years. We do it with GPS and we go back to the same spots. We can compare and contrast every two years and assess whether we are on course. It is a very visible thing. If any member of society who is concerned about our soils visits Dowth-----