JAMB - Biology (1985 - No. 45)
Water retention is highest in soils which are rich in
sand, poor in humus and devoid of clay
clay and sand, but poor in humus
clay and humus, but poor in sand
clay, poor in humus and devoid of sand
sand and humus, but poor in clay
Giải thích
Clay Soil can hold more total water than most other soil types