土壌粒径画分（soil separates）
意味
Three categories for soil particles have been established — sand, silt and clay. These three groups are called soil separates. The three groups are divided by their particle size.
オトモ農学オトモ農学Three categories for soil particles have been established — sand, silt and clay. These three groups are called soil separates. The three groups are divided by their particle size.