He also reminds them what combination of chemicals is most suitable for their soil and how best to apply it. with this knowledge, she has already cut her fertiliser bills by close to half. translation: our beliefs about fertiliser used to be | passed on to us. if you saw other farmers using a certain formula, we would just follow them. i didn t know that their soils and mine were different, that we could not use the same formula. i used to believe that the more fertiliser i added, the more produce i would get, and the more beautiful and greener the rice would be. thailand s farmers have got into the habit of using far more fertiliser than they really need. but they do still need plenty to produce the surpluses that make up a large portion of the world s rice exports. ....