REDUCING NICKEL IN SOROWAKO POST MINE AREA THROUGH APPLICATION OF MYCORRHIZA Acaulospora sp ON Canavalia ensiformis L

Muhammad Akhsan Akib¹, Kahar Mustari², Tutik Kuswinanti^3*, Syatrianty Andi Syaiful², Zahraeni Kumalawati⁴

¹   Graduate school, Hasanuddin University, South Sulawesi, Indonesia

²   Department of Agronomy Faculty of Agriculture Faculty of Agriculture, Hasanuddin University, South Sulawesi, Indonesia.

³   Department of Plant Pests and Diseases Faculty of Agriculture, Hasanuddin University, South Sulawesi, Indonesia.

⁴   Department of Plantation, Polytechnic of Pangkep State Agricultural, South Sulawesi, Indonesia.

^*Corresponding author phone :Tel : +62-8134256241, Fax: 0411-585162, E-mail: koeswinanti@yahoo.com

Abstract: The heavy metal content in area post mine nickel Sorowako reached 14.200 mg.kg^-1 and became limiting factor in plant growth. Phytoaccumulator plant of Canavalia ensiformis can be inoculated with arbuscula mycorrhiza to speed up reduction process. The aim of this research is knowing ability of mycorrhiza Acalauspora sp which inoculated on Canavalia ensiformis to reduce nickel, which prepared base on randomized block design with treatment of mycorrhiza Acaulospora sp, i. e: without inoculation of Acaoluspora sp (control); inoculation of indigenous Acaulospora sp; and inoculation of non-indigenous Acaulospora sp. The research conducted in Nursery PT. Vale Indonesia, Sorowako. The results showed that Canavalia ensiformis inoculated with indigenous Acalauspora sp can was increase accumulation of nickel in plant amounted by 7,91 to 11,68% with reduction rate ranging from 2,25 to 19,02 mg.kg^-1.hour^-1 and absorption efficiency of 3,19 to 10,10%. The nickel concentrations in Canavalia ensiformis increased of 1.40% to 2.54%, nickel concentration in root tissue was higher than other organs at age of 30 to 60 day after planting. This result indicated that indigenous Acaulospora sp could recommendation as biological agent that can help phytoaccumulator plant at nickel post mine area in Sorowako.

Keywords: biological agent, heavy metal, indigenous, phytoaccumulator.

INVENTORY OF POTENTIAL INDIGENOUS ENDOMYCHORRHIZA FOR LAND REHABILITATION MANAGEMENT OF NICKEL POST-MINING IN SOROWAKO

Muh. Akhsan Akib^a, Kahar Mustari^b(s), Tutik Kuswinanti^c, Syatrianti A. Syaiful^d

^a Faculty of Agriculture, Muhammadiyah University of Parepare, South Sulawesi, 91131, Indonesia. Tel : +62-811343885978 Fax:+62-42125524 .

^b(s)Faculty of Agriculture, Hasanuddin University, Makassar, South Sulawesi, 90245, Indonesia. Tel : +62-8124262377 Fax:+62-411585200 E-mail: kahar_mustari@yahoo.com

^c  Faculty of Agriculture, Hasanuddin University, Makassar, South Sulawesi, 90245, Indonesia. Tel : +62-81342562411  Fax: :+62-411585200 .

^d Faculty of Agriculture, Hasanuddin University, Makassar, South Sulawesi, 90245, Indonesia. Tel : +62-81355414097 Fax: :+62-411585200.

Abstract Acceleration land rehabilitation management of nickel post-mining in Sorowako has been main attention of PT. Vale Indonesia. This acceleration can be done by utilizing natural resources, especially microorganism’s indigenous endomychorrhiza. endomychorrhiza also called mychorrhizal arbuscula (MA) has got a lot of attention for its ability to form a mutualistic symbiosis with 80% - 96% of plant species. This study aims to determine the dominance of spores indigenous endomychorrhiza and its potential to accelerate land rehabilitation management of nickel post-mining, which is carried out in three phases; sampling rhizosphere, trapping spores, isolation and identification of spores MA types. The results showed that the dominance of genus indigenous endomychorrhiza in the area is Acalauspora sp (75, 06%).

Keywords: Acaulospora sp, endomychoorrhiza, nickel, post-mining.