1984 Volume 25 Issue 1 Pages 51-57
The author made the soil testing equipment which can maintain soil biotope in natural condition. This equipment has made possible to study the soil microbes in natural condition. It makes possible for you to set up teaching plans putting emphasis on the function of decomposers using the equipment, such as soil respiration, the decomposition of fallen leaves and filter paper in net bags, and the decomposition of organic compounds.