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All Journal Journal of Aquaculture and Fish Health Socio-Economic and Humanistic Aspects for Township and Industry
Khairul Hadi
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media

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Analysis of the Performance of Non-Metallic Mineral and Rock Tax Collection in Increasing Regional Original Revenue (PAD) in East Lombok Regency Khairul Hadi; Abdul Manan; Siti Sriningsih
Socio-Economic and Humanistic Aspects for Township and Industry Vol. 2 No. 1 (2024): Socio-Economic and Humanistic Aspects for Township and Industry
Publisher : Tinta Emas Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/sehati.v2i1.197

Abstract

This research is quantitative descriptive research, which is a quantitative descriptive method is a research method that describes or explains data through numbers. The data in this study are primary data and secondary data. Primary data obtained from interviews with Bapenda employees of East Lombok Regency while secondary data comes from related agencies. The results of this study found that the growth rate of non-metal mineral and rock tax is included in the criteria less successful. The effectiveness of non-metal mineral and rock taxes meets the criteria of less. The contribution of non-metallic mineral and rock tax is included in the criteria very less and the elasticity of non-metallic mineral and rock tax is included in the elastic criteria.
Utilization of Cow's Rumen Bokashi Enriched with Chicken Manure on Chlorella sp. Cell Density Fraja Mukti; Rosyadi; Agusnimar; Khairul Hadi; Kurnia Zulfahmi; Nagaraj, Subramani
Journal of Aquaculture and Fish Health Vol. 13 No. 2 (2024): JAFH Vol. 13 No. 2 June 2024
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v13i2.54277

Abstract

One of the organic fertilizers that has the potential to cultivate Chlorella sp. is the cow's rumen. To increase the nutrient content in the cow's rumen, the cow's rumen must be made into bokashi and enriched with chicken manure. This study aimed to determine the use of cow's rumen bokashi enriched with chicken manure at different doses on Chlorella sp cell density. The research design used was a Completely Randomized Design (CRD) with 5 treatments and 3 replications, namely P0 (2 g/L cow's rumen bokashi), P1 = 2 g/L cow's rumen bokashi enriched with 2.5 g/L chicken manure, P2 = 2 g/L cow's rumen bokashi enriched with 3.0 g/L chicken manure, P3 = 2 g/L cow's rumen bokashi enriched with 3.5 g/L chicken manure, and P4 = 2 g/L cow's rumen bokashi enriched with 4.0 g/L chicken manure. The results showed that the highest cell density of Chlorella sp. occurred in treatment P3 (i.e. 456.1 ± 15.1 í— 104 cells/mL) and the highest specific growth rate occurred in treatment P0 (i.e. 0.20 ± 0.0/day). Nutrient levels in the culture medium are optimal for Chlorella sp., with nitrate ranging from 0.1375 to 0.2833 mg/L and phosphate ranging from 2.4889 to 2.8650 mg/L. From the results of this study, it can be concluded that the use of cow's rumen bokashi enriched with chicken manure had a very significant effect on cell density and specific growth rate of Chlorella sp. (P<0.01).
Co-Authors Abdul Manan Agusnimar Fraja Mukti Kurnia Zulfahmi Nagaraj, Subramani Rosyadi Siti Sriningsih