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IJSTR >> Volume 8 - Issue 2, February 2019 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Microorganisms In Ex-Coal Mining Land After The Application Of Organic Fertilizers In Saliki Village Samarinda, East Kalimantan

[Full Text]

 

AUTHOR(S)

Samsurianto, Wawan Kustiawan, Marjenah, Djumali Mardji

 

KEYWORDS

bacteria, ex-coal mining, fertilizer, fungi, microorganism, nematode

 

ABSTRACT

This study was intended to determine whether organic fertilizers affect the presence of soil microorganisms after coal mining. The study location was the ex-coal mining area of PT Graha Benua Etam, in Saliki Village, Samarinda, East Kalimantan. This study used 4 kinds of organic fertilizer on the soil planted with Jabon seedlings, namely market waste vegetable fertilizer (WV), chicken manure (CM), cow dung (CD) and goat manure (GM). The results of this study indicated that before fertilizing 2 fungal genera were found in soil samples, namely Aspergillus and Trichoderma. At 3 months after fertilizing the soil with WV, 3 fungal genera were found, namely Aspergillus, Penicillium, and Trichoderma. At 3 months after fertilizing the soil with CM, CD, and GM found 3 genera of fungi the same with WV. At 6 months after fertilizing the soil with WV 3 genera of fungi were found that were same with 3 months, plus two other genera, namely Mucor and Rhizopus. At 6 months after fertilizing the soil with CM, CD, and GM the same 3 fungal genera as WV were found. Before fertilizing there was found 3 families of bacteria, namely Azotobacteraceae, Bacillaceae, and Microccaceae. At 3 and 6 months after fertilizing the soil with the four organic fertilizers, the same 3 families as before fertilizing were found. Nematodes were not found in soil samples before fertilizing, but 3 months after fertilizing with the four organic fertilizers there was found 3 genera, namely Dorylaimus, Rhabditis and Rotylenchullus. At 6 months after fertilizing, 5 genera of nematodes were found in the soil fertilized with WV and CM, namely Aphelenchus, Dorylaimus, Rhabditis, Rotylenchullus, and Hoplolaimus. In the soil fertilized with CD, only 3 genera of nematodes were found, namely Dorylaimus, Rhabditis, and Rotylenchullus. In the soil fertilized with GM, 4 genera of nematodes were found, namely Dorylaimus, Rhabditis, Rotylenchullus, and Hoplolaimus. It can be concluded that the number of genera of microorganisms increases with improved ex-mining soil conditions resulting from the application of organic fertilizers.

 

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