The management of soil acidity for sustained crop production - a cooperative project [amelioration; ultisols; oxisols; yields; Malaysia; Queensland; New South Wales]

acidez acidity acrisol acrisoles acrisols amendement du sol crops cultivos enmiendas del suelo ferralsol ferralsoles ferralsols malaisie malasia malaysia new south wales nueva gales del sur plante de culture queensland soil amendments soil chemicophysical properties