We know from the past what is possible. "Thousands of truffle-producing trees were planted, and production reached peaks of hundreds of tonnes at the end of th

We know from the past what is possible. "Thousands of truffle-producing trees were planted, and production reached peaks of hundreds of tonnes at the end of the 19th century. In 1890, 75,000 hectares (190,000 acres) of truffle-producing trees had been planted." https://en.m.wikipedia.org/wiki/Truffle#Cultivation https://en.m.wikipedia.org/wiki/Truffle#Cultivation