ANALISIS BAKTERI TANAH DI HUTAN LARANGAN ADAT RUMBIO
Abstract: One of indicator of
soil fertility is the population level of microbial in the soil. This research
aims to determine the number of bacterial populations in the soil on yhe
Larangan Adat Rumbi Forest with different levels of depth. This research has
been carried out on January-February 2015 in the Laboratory of Pathology,
Entomology and Microbiology, Faculty of Agriculture and Animal Sciences of
State Islamic University of Sultan Syarif Kasim Riau. The method that was used
namely observation method by taking soil samples on the Larangan Adat Rumbio
Forest then calculated the number of colonies of bacteria and analyze the
morphology of the bacteria that was obtained macroscopically and
microscopically. Parameters measured were pH of soil, the population of
bacteria, bacterial morphology, gram stain, and bacterial cell shape based on
soil depth of 0-10 cm, 11-20 cm, 21-30 cm. Observations carried out two stages
macroscopic and microscopic observation. The results showed the soil pH on the
Larangan Adat Rumbio Forest was 4,11. Total population of bacteria at depth of
0-10 cm namely 3,0 x 109 CFU, then at a depth of 11-20 cm namely of 2,2 x 109
CFU and at depth of 21-30 cm namely 1,6 x 108 CFU. The Results of purification
of culture was obtained six isolat two coccus and four bacil consisting of five
gram negative bacteria and one gram positive. Need to do further research on
bacteria identification to genus or species level.
Penulis: Rahmi Fitrah,
Mokhammad Irfan, Robbana Saragih
Kode Jurnal: jppertaniandd170552
