Improvement of Nickel Mine Pure Soil Quality Using Micorizes and Palm Oil Compose Empty Bands on The Growth of Calopogonium mucunoides
Boby Dirgantara Hanafie Putra, Rismaneswati and Muh Jayadi

Department of Soil Science, Agrotechnology Study Program, Faculty of Agriculture, Hasanuddin
University, Makassar, Indonesia

Abstract

Indonesia has abundant natural resources, one of which is nickel. Nickel production reaches 190 thousand tons / year and has 8% of the world^s nickel reserves. Sulawesi is the region with the most advanced nickel production in Indonesia. Mining activities certainly cause a total change in an ecosystem. Damage to ecosystems has an impact on decreasing function, land productivity and life associations will be lost and difficult to replace even after replanting activities have been carried out. Various ways can be done to repair the damage caused by mining, namely by planting Legum Cover Crop (LCC), providing compost for oil palm empty bunches (TKKS) and adding mycorrhizae. The plant used for planting in ex-mining land reclamation, namely Calopogonium mucunoides, is useful for protecting soil from damage due to erosion. The research objective was to examine the effect of giving OPEFB compost and mycorrhizal to improve the quality of after-nickel mining soil at PT. Vale Indonesia, Sorowako. The purpose of this research is as a source of knowledge about the effect of giving OPEFB compost and mycorrhizal on post-mining soil. The method used in the study was a randomized block design with a 2-factor factorial (F2F). The first factor consists of the OPEFB compost factor as K with a level of K1 = 0.25%, K2 = 0.37% and K3 = 0.5% of soil weight. The second factor consists of the Mycorrhizal factor as M with a level of M1 = 5 gr/pot, M2 = 10 gr/pot and M3 = 15 gr/pot. The results obtained for the application of OPEFB compost and mycorrhizal had a significant effect on plant height, number of leaves, and plant dry weight. For the best growth power is on K2M2 using 0.37% OPEFB compost and 10gr/pot mycorrhizal.

Keywords: Compost, Mining, Mycorrhiza, Nickel

Topic: Crop Production and Environment