Potensi Fungi Pelarut Fosfat di Bawah Tegakan Kemenyan Toba (Styrax Sumatrana) Asal Desa Pandumaan, Kecamatan Pollung, Kabupaten Humbang Hasundutan

Abstract

This study aims to know the potential phosphate solubilizing fungi found in the soil under kemenyan toba (Styrax sumatrana) from Pandumaan Village, Pollung District, Humbang Hasundutan Regency. Soil samples are taken from the soil under Kemenyan toba at a depth of 0-20 cm using an ground drill. Soil chemical analysis was carried out at PT Socfin Indonesia Medan North Sumatra and Isolation and Identification of Phosphate Solubilizing Fungi were carried out at the Soil Biology Laboratory, Agroecotechnology Study Program, Faculty of Agriculture, University of North Sumatra. The isolation results obtained 10 (ten) isolates of phosphate Solubilizing fungi capable of forming clear zones. The results of macroscopic and microscopic observations showed that all isolates belong to the genus Aspergillus consisting of 3 (three) species which is Aspergillus sp. 1, Aspergillus sp. 2, dan Aspergillus sp. 3.