We had seminar on charcoal and mokusaku technology. these material is good effects to livestock and soil. this time we had 3 guest speakers, one is doctor in japan researching animals, next is director of charcoal/mokusaku, last is a farmer using charcoal and mokusaku for his farm. charcoal and moksuaku technology started by farmers experiences, but now there are a lot of data by researchers. … This is very rare opportunity to have many reports by Japanese researcher and technical persons.