Judul: Studi kelayakan usaha budidaya dan prospek pasar Lempuyang Wangi (Zingiber aromaticum Val) oleh Lembaga Masyarakat Desa Hutan Desa Ngliron di BKPH Ngliron KPH Randublatung
Abstrak: Prospects of cultivation medicinal plants showed positive trends. It is characterized by high demand for medicinal plants both domestic and international, while the supply of medicinal plants is still low. According to Agricultural Research and Development (2007), 85% of raw material supply to 1.023 medicine industries derived from exploitation the forest and without any cultivation. In the future, cultivation is important step to prevent the extinction of some medicinal plants. One type of medicinal plants to cultivated is lempuyang wangi (Zingiber aromaticum Val). Lempuyang wangi with good quality can be found at Ngliron, Blora. At place, it can to increase income of Ngliron’s society beside agricultural activities. During this time, Ngliron’s society take lempuyang wangi from the forest and without leaving of rhizome. As a result, the next year decreased in the total of harvested lempuyang wangi. To start activity of cultivation, require to be a feasibility study. The feasibility study which examined in this research aims to analyze prospects and feasibility level of cultivation lempuyang wangi in Ngliron. Scope of this research includes aspects of market research, technical and technological, management and organization, financial, and business impact. Based on market analysis, the price of dry lempuyang wangi at the first years is Rp 9.000/kg and will be increasing 5% each years. Based on technical and technological analysis, cultivation areas located in the forest around the village Ngliron the governance area BKPH Ngliron KPH Randublatung. Cultivation area of 6 ha produce 9,2 tons/year of dry lempuyang wangi. Based on management and organization analysis, this cultivation managed by 52 people who joined in the Forest Village Community Institution of Ngliron Village. Based on the environmental aspects, lempuyang wangi cultivation is worth running. Based on financial analysis, the total investment cost reaches is Rp 28.200.000,00, it derived from Perhutani’s sharing funds to LMDH of Ngliron Village. The analysis shows the value is NPV : Rp 4.725.383,00, IRR : 16,15%, BCR : 1,17, and PBP : during 6,05 years. Based on the sensitivity analysis, cultivation is sensitive to changes in sharing with farmers increase to 78% and a decrease in production volumes by 5% each year. Analysis of the eligibility criteria indicated Ngliron cultivation in the Village is worth running.
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Judul: Analisis Kelayakan Usaha Paprika Hidroponik (Kasus Di Kebun Produksi PT Saung Mirwan, Kecamatan Megamendung, Kabupaten Bogor, Jawa Barat)
Abstrak: Horticulture is one of the agricultural sub-sector has an important role in Indonesian economy. Vegetables has great contribution to GDP from horticultural commodity groups. In 2011, vegetables had the highest growth percentage compared to the other three groups of commodities, which reached 6.06 percent. In 2007-2011, vegetables also had the highest growth percentage of 6.72 percent. One of vegetable commodities that have the potential to be developed is bell peppers. The demand for bell peppers, both in the local market as well as export markets, is higher than the supply. It is a chance to most entrepreneur to start and grown the cultivation of bell peppers. But, the high of investment can be obstruction to run the cultivation of bell peppers. Therefore the feasibility analysis of hydroponic bell peppers is needed to know how much the business can give profit for the entrepreneurs. Firm which has many experiences in the cultivation of bell peppers is Saung Mirwan. The company has been running the bell peppers cultivation since the 1990’s. Therefore, a production farm of Saung Mirwan can be referenced for the entrepreneurs who want to entry the business of bell peppers cultivation. This study is analyzed the cultivation of bell peppers with hydroponic and drip irrigation systems. The purpose of this study was (1) analyzed the non-financial feasibility of the hydroponic bell peppers in Saung Mirwan, (2) analyzed the financial feasibility of hydroponic bell peppers in Saung Mirwan, (3) analyzed the sensitivity of hydroponic bell peppers in Saung Mirwan with changes the decreased in the prices output, declined in the number of bell peppers production, and increased in the price of nutrients. The research was conducted in the production farm of Saung Mirwan from October 2010 until February 2011. This study uses qualitative and quantitative analysis as methods to explain the analysis of non-financial and financial aspects in the business of hydroponic bell peppers. The result of the feasibility analysis indicate that the market, technical, management, social, economic and cultural, and environmental aspect of hydroponic cultivation of bell peppers is feasible. The financial aspects analysis stated the hydroponic bell peppers cultivation is feasible with the value of Rp 9.9 billion of NPV, IRR of 34.18 percent, Net B/C of 3.76, and payback period for 5 years. Switching value analysis results show that the business unfeasible if the bell peppers prices is decreased more than 49.65 percent, the number of bell peppers production decline more than 49.65 percent, and the price of nutrients increased more than 427.90 percent. This shows that the feasibility of hydroponic bell peppers is more sensitive to decreasing price of output and the declining of production rather than increasing in the price of nutrition.
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Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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