Pacific Fertiliser can supply coarse grade minerals suitable for growing truffles such as coarse lime, dolomite and gypsum.
Truffles generally grow in free draining poor quality soils – something we have a lot of in Australia. In addition to being free draining, soils also need to have a high pH, somewhere between 7 – 8, as well as other micro nutrient levels, which may need correcting, depending upon the results of a soil test. Most truffle growers are liming to bring the soil up to the desired pH range. Some varieties are tolerant of lower levels and research has shown that they seem to make the pH of soil around them to suit themselves.
Research has shown that fertilisers such as phosphorus and nitrogen have no detrimental effect on the mycorrhiza. Trees should be given a complete NPK fertiliser with up to 12 essential nutrients. On typical alkaline soils used for growing truffles, special attention must be given to replacing trace elements like iron, manganese, copper, boron and zinc.
