Kajian Kepadatan Populasi Cacing Tanah Pada Lahan Kelapa Sawit Rakyat, Karet …

ABSTRACT The increase in the area of plantation crops such as oil palm and rubber is inversely proportional to the availability of land for plantation areas, resulting in the expansion of land on acidic mineral soils. This soil has a variety of problems with its physical, biological, and chemical properties. These problems then affects plants and earthworms. While the presence of earthworms is…