Universitas Islam Indonesia

Currently, Salak tree waste can been used optimally as compost, handicraft, bioethanol, micro-organism Local (MOL), drugs, massage therapy device, mats, and many others. This was conveyed by Lecturer of Environmental Engineering program, Faculty of Civil Engineering and Planning (FTSP) UII, Nelly Marlina, M.Sc as the speaker at socialization of utilization of Salak tree waste conducted by KKN UII (fieldwork team), at Turi Village, on Thursday (4/12).

Nellya Marlina, who is also member of Center for Environmental Studies (PSL) UII mention that salak tree, rotten salak fruit, can be used as organic fertilizer. According to her, there are some ingredients for producing compost including decayed garbage, approximately 2-4 m3, 6.5 m3 salak waste, 750 kg of manure, 30 kg of ash. Cement tub or holes was needed as the container to mix the ingredients , "Stir all ingredients together except ashes, Put mixture into a medium tub, the high of the compost mixture must be a meter, then sprinkle the top of the mixture with ash" she explained. Then, keep the falling water in container, and pour the liquid into the mixture to increase.

Furthermore, he said, the perspective of collecting the liquid that comes out of the tub. Flush to the surface of the mixture to increase the levels of nitrogen and accelerate the composting process. "After 2-3 weeks later, stir compost every week. After 2 -3 months the compost is mature enough. Then, dry the compost before it is used," She said.

In addition, salak tree waste can be used as a Micro-Organism Local (MOL). MOL can be used as liquid organic fertilizer, decomposers in a compost pile, and pesticide to repel pests. In processing MOL, the ingredients are 5kg of rotten salak fruit, 10 coconut, 1 kg of brown sugar.

At the end, Nelly also mentioned that salak tree waste can also be produced as bioethanol and hadicrafts. As told by Asep Supriyadi S.Pd.I DPPM- UII staff, in his release, this event lasted well and the participants were very enthusiastic. As revealed by one of participants, Sigit, who is also the owner of Salak farm, Sigit, that he expected DPPM to give information about agricultural waste management of agricultural to create economic value.

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