Effectivity Test of Compost Added By Coca-Cola Solid Waste Sludge With Water Spinach (Ipomoea Reptans POIR.) As an Indicator

I Dewa Made Arthagama; Putu Oki Bimantara; Ni Made Tri Gunasih; I Wayan Narka

doi:10.24843/IJBB.2023.v11.i01.p03

I Dewa Made Arthagama Agroecotechnology Study Program, Faculty of Agriculture, Udayana University, Jl. P.B. Sudirman, Denpasar, Bali, 80235, Indonesia
Putu Oki Bimantara Agroecotechnology Study Program, Faculty of Agriculture, Udayana University, Jl. P.B. Sudirman, Denpasar, Bali, 80235, Indonesia
Ni Made Tri Gunasih Agroecotechnology Study Program, Faculty of Agriculture, Udayana University, Jl. P.B. Sudirman, Denpasar, Bali, 80235, Indonesia
I Wayan Narka Agroecotechnology Study Program, Faculty of Agriculture, Udayana University, Jl. P.B. Sudirman, Denpasar, Bali, 80235, Indonesia

DOI: https://doi.org/10.24843/IJBB.2023.v11.i01.p03

Abstract

Effectivity test of compost fertilizer added with Coca-Cola solid waste sludge with an indicator of water spinach (Ipomoea reptans POIR.), aiming to determine the effectiveness of the dose of compost added with Coca-Cola solid waste sludge to increase the yield of water spinach and improve some soil chemical properties. This research is a pot experiment in a greenhouse that was carried out in Kerambitan village, Tabanan region, Bali, Indonesia. Using a completely randomized design (CRD) consisting of 7 doses of compost added by Coca-Cola solid waste sludge. The compost that was used as a treatment was compost that had been added 20% of Coca-Cola solid waste sludge. The doses of compost tested were: K0 (control), K1 (3 tons of compost), K2 (6 tons of compost), K3 (9 tons of compost), K4 (12 tons of compost), K5 (15 tons of compost), Ka (250 kg urea + 50 kg phonska) per hectare, and each treatment was repeated 4 times so that 28 experimental pots were conducted. Parameters observed included: maximum plant height (cm), fresh plant weight at harvest, relative agronomic effectivities (RAE), oven-dry plant weight, soil pH, soil organic carbon (SOC), and soil CEC at harvest. Observational data were statistically analyzed, to determine the effect of the treatment being tried. If the treatment has a significant effect, then continue with the Duncans 5% test. The statistical analysis showed that the treatments had a significant effect on plant height growth, fresh and oven-dry weight of plants, as well as on some soil chemical properties. The heaviest fresh plant weight was obtained in treatment Ka (98.41 g), followed by K5 (98.35 g), K3 (98.33 g), and K4 (98.21 g) per pot. The highest value of relative agronomic effectiveness (RAE) was obtained in K5 (99.63 %), followed by K3 (99.58 %), and K4 (98.76 %). While the highest CEC was obtained in the treatment of K5 (40.25 me 100 g^-1), K3 (39.75 me g^-1) with successive organic-C levels (31.75%), (3.16 %) and pH (7.04), (7.0). The best dose of compost treatment from the results of this study was found in the K3 treatment (9 tons of compost ha^-1).

Downloads

Download data is not yet available.

References

Alam Tani, (2013). Budidaya kangkung darat organik. https://alamtani.com/budidaya-kangkung-darat-organik/.
Badan pusat statistik Provinsi Bali. (2020). Produksi tanaman hortikultura (sayuran) di daerah Bali. https://www.bps.go.id/indicator/55/61/1/produksi-tanaman-sayuran.html.
Basri, H. (2018). Pengaruh tiga jenis pupuk kandang terhadap pertumbuhan kangkung cabut (Ipomoea reptans POIR.) [Unpublished Bachelor Thesis]. Universitas Negeri Alauddin.
Engelstad, O.P. (1978). Relative agronomic and economic effectiveness values for phosphate rock. Paper presented at Proceedings of Seminar on Phosphate Rock for Direct Application. International Fertilizer Development Centre. Haifa, Israel. P.291-303.
Griest, W. H., Tyndall, R. L., Stewart, A. J., Ho, C. H., Ironside, K. S., Caton, J. E., Caldwell, W. M., Tan, E. (1991) Characterization of explosives processing waste decomposition due to composting. United States. https://doi.org/10.2172/5598569.
Notohadiprawiro, T., Suryanto, Hidayat, & Asmara, A.A., (1991). Nilai pupuk sari kering limbah (sludge) kawasan industri dan dampak penggunaannya sebagai pupuk atas lingkungan. Agriculture Science. 4(7), 12-14.
Nirmalayanti,K.A., Subadyasa, N.N., & Arthagama, D.M., (2017). Pengaruh jenis pupuk organik terhadap pertumbuhan bayam merah (Amaranthus amoena) pada tanah Inceptisol Pegog. Agroekoteknologi Tropika. 6(1), 1-10. https://ojs.unud.ac.id/index.php/JAT/article/view/26471.
Novisan. (2002). Petunjuk pemupukan efektif. Jakarta, Indonesia: Agromedia.
Puslittanak (2003). Usahatani pada lahan kering, badan penelitian dan pengembangan pertanian. Departemen Pertanian.
Sastrosupadi, A. (2000). Rancangan percobaan praktis bidang pertanian. Magelang, Indonesia: Kanisius.
Setyorini,D., J.S. Adiningsih & S. Rohayati. (2003). Uji tanah sebagai dasar penyusunan rekomendasi pemupukan. Bogor, Indonesia: Balai Penelitian Tanah.
Supadma, A.A.N., & D.M. Arthagama, (2008). Uji formulasi kualitas pupuk kompos yang bersumber dari sampah organik dengan penambahan limbah ternak ayam, sapi, babi, dan tanaman pahitan. Jurnal Bumi Lestari. 8(2), 113-121. https://ojs.unud.ac.id/index.php/blje/article/view/2430.
Supadma, A.A.N., K.D. Susila dan D.M, Arthagama. (2002). Pengaruh takaran limbah pabrik coca cola dan tambahan gergajian kayu terhadap mutu pupuk kompos. Fakultas Pertanian Universitas Udayana.