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<![CDATA[DOES AN ENERGY INDEPENDENT VILLAGE BE FORMED IN NORTH SUMATRA PROVINCE? CASE STUDY: BULUH AWAR VILLAGE, SIBOLANGIT SUB-DISTRICT, DELI SERDANG DISTRICT ]]>
<![CDATA[Nobrya Husni]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5474
<![CDATA[The potential of renewable energy in the province of North Sumatra has not given confidence to the provincial government to establish Energy Independent Village (EIV). This paper aims to describe the utilization of renewable energy in the village Buluh Awar who have had success using a water-based renewable energy as a source of electrical energy for 25 (twenty-five) years. The approach in this study is qualitative and uses data collection techniques such as observation and interview. The study was conducted in May 2016 and took place in the Buluh Awar village, Sibolangit sub-district, Deli Serdang District. The village was chosen because it has been using the power source coming from renewables for 25 (twenty-five) years, but has not been designated as EIV. The informants were: the user community; plant manager; headman; Department of Mines and Energy (Distamben) North Sumatra Province; and, Distamben Deli Serdang. Analysis of the factors that play a role in the utilization of renewable energy shows that the North Sumatra Province has the ability to form the EIV. Based on the analysis of the factors that play a role in the utilization of renewable energy, it can be concluded that the village Buluh Awar has the ability to set as DME, if followed by the intervention of the local government by providing technical assistance to improve generating capacity so that it can generate more electric power so that society can do creative activity that can push economic growth at Buluh Awar village.]]>
<![CDATA[PENGARUH PEMBERIAN JENIS DAN TAKARAN PUPUK ORGANIK TERHADAP KARAKTERISTIK FISIOLOGIS TANAMAN BAWANG MERAH PADA TANAH ULTISOL ]]>
<![CDATA[Yuyun Rahmawati]]>;
<![CDATA[Joko Purnomo]]>;
<![CDATA[Hilda Susanti]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5480
<![CDATA[This research was carried out from December to May 2018, at Greenhouse of Supervision and Certification of Food Crops and Horticulture Banjarbaru. The objective of the study was to examine the effect of organic fertilizer type and dosage and to know the best dosage of each type of organic fertilizer on the physiological characteristics of shallots on ultisol soil. The experimental method is designed based on a two-factor nested design with Completely Randomized Compact Design (RAL) design. The first factor is the type of organic fertilizer (J) consisting of two levels namely cow dung (j1) and chicken manure (j2), the second factor is the organic fertilizer dosage nested in the organic fertilizer consisting of four levels of 10 t ha-1 (d1); 20 t ha-1 (d2); 30 t ha-1 (d3) and 40 t ha-1 (d4). Treatment was repeated 4 times, each experimental unit consisting of 3 polybags. Observation variables were leaf N content, leaf chlorophyll content, the water content of bulbs and volatile oil content on bulbs. The results showed that the type and quantity of organic manure of cow dung and chicken manure had no significant effect on all observed variables. Limiting factors such as low light intensity are suspected to cause the type treatment and organic fertilizer dosage does not affect all observed variables. Light intensity and humidity during cultivation are incompatible with the requirements of shallots grow is also seen in the long period of vegetative shallots plant which is a manifestation of the plant's response to environmental conditions.]]>
<![CDATA[POTENSI EKSTRAK DAUN KETAPANG, MAHONI, DAN KERAI PAYUNG SEBAGAI BIOHERBISIDA TERHADAP Cyperus rotundus L. ]]>
<![CDATA[Khairunnisa Khairunnisa]]>;
<![CDATA[Indriyanto Indriyanto]]>;
<![CDATA[Melya Riniarti]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5473
<![CDATA[Bioherbicide is an alternative compound to control weeds which are environmentally friendly by utilizing parts of plant organs, like leaves that are applied in the form of extracts. The aim of this study is to determine the potential of Terminalia catappa, Swietenia macrophylla, and Filicium decipiens leaf extract as bioherbicides against Cyperus rotundus and to find out which leaf extract has the most effective to prevent the Cyperus rotundus growth. The study was done by using maceration techniques of leaf extract with ethanol solvent applied to Cyperus rotundus. This study was designed in a Completely Randomized Design (CRD) consisting of 4 treatments, which are control, 50% of Terminalia catappa leaf extract concentrate, 50% of Swietenia macrophylla leaf extract concentrate, and 50% of Filicium decipiens leaf extract concentrate. The results of this research showed that ketapang, mahogany, and kerai payung leaf extract could be used as bioherbicides because it has a very significant effect on inhibiting the height growth, the number of leaves, and the length of the roots of Cyperus rotundus. Filicium decipiens extract was the most effective extract in inhibiting the number of Cyperus rotundus leaves. However, each leaf extract did not significantly affect the reduction of chlorophyll content and dry weight. Therefore, further research is needed regarding the potential of these three leaf extracts to other weeds.]]>
<![CDATA[RESPON PERTUMBUHAN DAN PRODUKTIVITAS KELAPA SAWIT (Elaeis Guineensis Jacquin) TERHADAP KEDALAMAN DAN BOBOT BAHAN ORGANIK PENUTUP BIOPORI PADA TANAH PODSOLIK MERAH KUNING ]]>
<![CDATA[Umar Battong]]>;
<![CDATA[Raihani Wahdah]]>;
<![CDATA[Gusti Rusmayadi]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5479
<![CDATA[This study aims to determine the effect of bokashi and biopori depth treatment on growth and production of oil palm. The study was conducted at Long Gelang Paser Regency in August 2017 - January 2018 using a randomized block design with two factors. The first factor is the depth of biopori with depth: 50, 75, and 100 cm and the second factor is bokashi weight with level: 4, 5 and 6 tons per hectare with three replicates, highest weight of TBS obtained at 75 cm biopori depth, obtained at a depth of 100 cm biopori with 6 ton per hectare of bokashi, the highest soil N content was obtained at 50 cm depth with treatment of 6 tons per hectare bokashi, the highest groundwater content was obtained at 75 cm biopori depth with bokashi 4 tons per hectare]]>
<![CDATA[APLIKASI ALOFAN DALAM TANAH ANDISOL SEBAGAI ADSORBEN UNTUK MENURUNKAN BAKTERI Coliform LIMBAH CAIR DOMESTIK ]]>
<![CDATA[Rois, Ibnu]]>;
<![CDATA[Pranoto, Pranoto]]>;
<![CDATA[Sunarto, Sunarto]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5475
<![CDATA[Research on allophane has been done as an adsorbent to decrease MPN Coliform in domestic wastewater. The purpose of this study was to look for natural adsorbent materials that can be used to decrease MPN Coliform. Natural allophane was identified from andisol soil by pH analysis of NaF, FTIR, XRD, and SAA. The result of the analysis showed that there was allophane on andisol soil with pH 11,73. The diameter of empty space or alloy pores of 5 nm with a hole/pore size of 0.5 nm. Testing of MPN Coliform is done by method of Most Probable Number (MPN) variety 5: 5: 5. Based on the result of the research, allophane adsorbent can decrease MPN Coliform by 60.9%.]]>
<![CDATA[KEANEKARAGAMAN DAN KEKERABATAN IKAN FAMILI CYPRINIDAE PADA EKOSISTEM BENDUNGAN COLO SUKOHARJO JAWA TENGAH ]]>
<![CDATA[Ragil Nur Cahyono]]>;
<![CDATA[Agung Budiharjo]]>;
<![CDATA[Sugiyarto Sugiyarto]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5478
<![CDATA[The Cyprinidae fish family is a family of freshwater fish with the largest number of species and its presence is widespread almost all of the world. The main habitat of this family is the river's ecosystem, river damming changing the environmental conditions between the ecosystems before and after the dam's watergate. Such as Colo Dam that dammed Bengawan Solo River that allegedly affects the diversity of species of Cyprinidae fish. So this study was conducted in order to determine the diversity and kinship of the Cyprinidae fish family in the ecosystem before and after the Colo Dam watergate. Sampling was conducted September-October 2017 at Sukoharjo Colo Dam by Purposive sampling method. Identify fish species used Kottelat identification books. The diversity of fish species was calculated by Shannon Wiener's diversity index. The correlation between abiotic factor and fish diversity was analyzed by a regression test. The kinship of the fish was analyzed by the Ntsys cluster method (2.02i). The results showed that the Cyprinidae fish species that live in the Colo Dam ecosystem contain 10 species, the diversity of Cyprinidae fish in the fast-water ecosystem of station I is higher (0,96) then the slow-water ecosystem of station II, III, and IV (0,47; 0,73, and 0,58). Abiotic factors of current velocity affect the level of fish diversity reaches 91%. The Cyprinidae fish kinship rate has a coefficient of resemblance between 60% - 85%, fish with the same genus and many similarities in morphological characters and their behavior is categorized as having a close kinship.]]>
<![CDATA[PENGARUH TINDAK AGRONOMI DAN LINGKUNGAN TERHADAP HASIL PADI LOKALKULTIVAR SIAM UNUS PADA TIGA KECAMATAN DI KABUPATEN BARITO KUALA ]]>
<![CDATA[Fadliah Fadliah]]>;
<![CDATA[Bambang F. Langai]]>;
<![CDATA[Raihani Wahdah]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5471
<![CDATA[Research on Agronomic and Environmental Measures to Local Paddy Cultivars Siam Unus on Three Districts in Barito Kuala Regency from December 2017-January 2018. The research method used was survey method, and data collection method used is purposive sampling, that farmer which rice plant of local varieties Siam Unus, and 2 villages in 3 sub-districts, and each village was selected random samples each of 10 farmers with the interview with local rice farmer Siam Unus located at the location. farmers who used the tractor in the tidal area were 8 people (13.33%) and those who did not use the tractor for the tidal area were 52 people (88.67%). Local farmers who use lime as many as 26 people (43.33%), and who do not use lime for his farm as much as 34 people (56.67%). Due to the land used to grow local paddy was flooded with high water. The direct influence of rainy days and rainfall in tidal swamps to the productivity of local varieties of Siam Unus rice each gives negative influence and contribution of 1.11% and 2.90% to the productivity of local rice plants varieties Siam Unus.]]>
<![CDATA[SUBSTITUSI PUPUK NPK DENGAN BOKASHI ECENG GONDOK (Eichhornia crassipes) PADA PEMBIBITAN TANAMAN LADA ]]>
<![CDATA[Putri Aulia Rahmah]]>;
<![CDATA[Gusti Rusmayadi]]>;
<![CDATA[Hilda Susanti]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5477
<![CDATA[This study aims to obtain the right composition in the use of water hyacinth bokashi that can substitute inorganic fertilizer in pepper plants. This research was carried out using polybag at plantation CV location. Gunung Putri Martapura for 4 months from January to May 2018 with experimental design of Randomized Non-Factorial Complete (RAL) with 5 treatment of plant media composition, namely: p0 = soil + 100% NPK “Mutiara” (without water hyacinth bokashi); p1 = soil: water hyacinth bokashi (3: 1 / v: v) + 75% NPK “Mutiara”; p2 = soil: water hyacinth bokashi (2: 2 / v: v) + 50% NPK “Mutiara”; p3 = soil: water hyacinth bokashi (1: 3 / v: v) + 25% NPK “Mutiara”; p4 = soil: water hyacinth bokashi (1: 3 / v: v) (without NPK “Mutiara”). Each treatment was repeated 4 times so that the entire plot of the experiment was 20 plots. Each plot consists of 5 plants so that there are 100 plants in total. Observations were made on plant height, stem diameter, the number of leaves, length of the segment, sprout age, and dry weight of the plant. Based on the result of the research, the treatment of various plant media composition has no significant effect on plant height, stem base diameter, leaf number, and dry weight of plant, but significantly affect the age of sprout and length of pepper plant so it can be concluded that water hyacinth bokashi in early the growth of pepper plants cannot substitute inorganic fertilizers but can be complimentary of inorganic fertilizers. The best cultivation plant composition treatment on pepper seedling in this study was on soil composition: water hyacinth bokashi (3: 1, v: v) + 75% NPK “Mutiara” and on soil composition: water hyacinth bokashi (2:2; v: v) + 50% NPK “Mutiara”.]]>
<![CDATA[DEKOMPOSISI GAMBUT TERKAIT PERUBAHAN LAHAN DI INDONESIA ]]>
<![CDATA[Nur wakhid]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5476
<![CDATA[Land-use change in peatland area usually related to large carbon dioxide (CO2) emissions owing chiefly to drainage, which lowers groundwater level (GWL), and potentially affects regional and global carbon balances. The dynamics of carbon dioxide emissions from peat soil consists of root respiration (autotrophic respiration), peat decomposition (heterotrophic respiration and litter decomposition), and emission from dissolved carbon in water. Recently, peat decomposition study, which is free from root respiration still limited, even this process is one main factor of carbon balance on peatland environment. This paper analyzed various data about peat decomposition from direct measurement using subsidence and closed chamber methods in Indonesia, at different land conversions, from primary forests to secondary forests and or agricultural and plantations. Generally, different land conversion produced different peat decomposition. Primary forest produced lower peat decomposition compare than that of secondary forest or plantation fields. Peat decomposition also affected by environmental conditions such as groundwater level, soil temperature, and plant species that grow on the land.]]>
<![CDATA[PERSEPSI MASYARAKAT UNTUK KEBERADAAN EKOSISTEM LAMUN DI TELUK YOUTEFA, JAYAPURA (PENDEKATAN WILLINGNESS TO PAY) ]]>
<![CDATA[Baigo Hamuna]]>;
<![CDATA[Basa T. Rumahorbo]]>;
<![CDATA[Henderina J. Keiluhu]]>;
<![CDATA[Alianto Alianto]]>
<![CDATA[ EnviroScienteae Vol 14, No 2 (2018): EnviroScienteae Volume 14 Nomor 2, Agustus 2018 ]]>
Publisher : <![CDATA[Universitas Lambung Mangkurat ]]>
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DOI: 10.20527/es.v14i2.5470
<![CDATA[Seagrass ecosystem in Youtefa Bay is very important and useful for the local people’s lives in around the Youtefa Bay. Willingness to Pay (WTP) of the locals toward the seagrass ecosystem is their appreciation for the existing value of seagrass ecosystem. This research explored how much the WTP was given by the local people toward the existences of seagrass ecosystem in Youtefa Bay. The data collection was conducted in March to April 2018 located in three villages around the Youtefa Bay, namely Tobati, Enggros and Nafri Villages as many as 228 respondents. Data analysis of this research was quantitative analysis to find out the mean WTP, aggregate and attribute WTP that influenced WTP value. The result of this research showed that there were 202 respondents were willing to contribute or pay and 26 respondents were not. The obtained WTP value of respondents ranged between IDR 0 to IDR 200,000.00 with mean WTP of respondent was Rp 53,464.91/year meanwhile aggregate WTP was Rp 27,480,964.91/year. Variables which had significant influence toward WTP value were participation at seminaries/trainings regarding coastal ecosystem. Meanwhile gender, age, education level, income, and profession or job variables didn’t make any significant influence toward the given WTP value amount.]]>
