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Meldi T.M. Sinolungan
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Fakultas Pertanian Universitas Sam Ratulangi Manado
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COCOS
Published by Universitas Sam Ratulangi
ISSN : -     EISSN : 27150070     DOI : 10.35791
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini memuat materi yang berkaitan dengan Pertanian. Menyangkut Tanah, Budidaya Pertanian, Proteksi Tanaman, Teknologi Pertanian dan Sosial Ekonomi Pertanian
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 7 Documents
 1 
Search results for , issue "Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020" : 7 Documents clear
IDENTIFIKASI SIFAT FISIK DAN KIMIA TANAH PADA LAHAN PERSAWAHAN DI KECAMATAN KOTAMOBAGU SELATAN Dimas Ajie Saputra; Sandra E. Pakasi; Verry Ch. Warouw
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31053

Abstract

ABSTRACTThe purpose of this study is to determine the physical and chemical properties of the soil on thepaddy fields in the District Kotamobagu Selatan. This research was conducted in the month of Octoberuntil November 2019. The method used is survey method, namely by direct observation in the field anddoing analysis. Soil samples taken at the 41 point spread on a land area of rice fields amounted to1318.07 ha. . Parameters observed were Soil Texture (method of Kang Biaw Tjwan), soil pH (pHmeter), C-organic matter (method of Walkley and Black), Nitrogen (method of Kjedhal), Phosphorus(method of Bray I) and Potassium (method of Bray I). Research data analysis using descriptive analysis.The results showed that, soil physical and chemical properties in paddy fields in the DistrictKotamobagu Selatan are as follows physical properties of the soil have a clay texture dusty, andchemical properties of the soil that consists of : a pH within the criteria of neutral, C-organic is in thecriteria high to low, the nitrogen criteria of low to very low, phosphorus is in the criteria is and thepotassium is on the kiteria was.Keywords: physical properties, chemical properties, paddy field,
PERANAN PENGGUNAAN LAHAN DI AREA TANGKAPAN SUNGAI TATAARAN TERHADAP EUTROFIKASI DANAU TONDANO Claudio Bonifasius; Johan Rombang Johan Rombang; Josephus Kalangi Josephus Kalangi
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31141

Abstract

ABSTRACTEutrophication is a problem faced by the world today. eutrophication is causedby increasing nutrient concentrations that occur in freshwater ecosystems. Land usechange in this case greatly affects the freshwater ecosystem around the lake. Thisstudy aims to assess the levels of Nitrogen (N) and Phosphorus (P) in the Tataaranriver water flowing into Lake Tondano due land use in the Tataaran river catchmentarea. The method used in this research is survey method and determination ofsampling points based on purposive sampling or the determination according to theresearch objectives, in this case at the outlet of each land use which is then presenteddescriptively for comparison. The results of this study indicate that based on the studyof Nitrogen (N) and Phosphorus (P) levels in the Tataaran river water flowing into LakeTondano, the largest contribution transported comes from residential land use, namelythe average N value content is 56.86 mg / seconds and P of 217.64 mg / second.Keywords : Eutrophication, Landuse, River of Tataaran
PENGARUH KONSENTRASI SUKROSA DAN STARTER TERHADAP KARAKTERISTIK SUSU KACANG MERAH (Phaseolus vulgaris L.) FERMENTASI Yanni Nathasia Br. Gurusinga; Jenny E.A. Kandou; Dekie Rawung Dekie Rawung
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31312

Abstract

ABSTRACTThis research aims to find the formula of fermented red bean milk withadding sucrose concentration and different starter that can be accepted by thepanelist and to analyze the chemical content. The research was designed usingCompletely Randomized Design (CRD) with different sucrose concentration(Factor A) and starter (Factor B). A1B1 (2% Sucrose and 5% Starter), A1B2 (2%Sucrose and 10% Starter), A1B3 (2% Sucrose and 15% Starter), A2B1 (5%2Sucrose and 5% Starter), A2B2 (5% Sucrose and 10% Starter), A2B3 (5%Sucrose and 15% Starter), A3B1 (8% Sucrose and 5% Starter), A3B2 (8%Sucrose and 10 % Starter), A3B3 (8% Sucrose and 15% Starter) with 3replications. the observation parameters of Total Lactic Acid bacteria, Total Acid,Total Sugar, Degree of Acidity (pH), and Sensory Test (Color, Scent, Taste,Vulnerability). The result shows that A3B3 (8% Sucrose and 15% Starter) isaccepted by the panelist with total bacterial lactic acid content of 1.60 x 105 colon/ g, total acid 0.037%, total sugar is 8.42%, and pH 5.Keywords: Fermented milk, Red bean
Pengaruh Penambahan Maltodekstrin Pada Pembuatan Minuman Instan Serbuk Buah Pepaya (Carica papaya L.) dan Buah Pala (Myristica fragrans H.) Michella C. Gabriela; Dekie Rawung; Maya M. Ludong
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31313

Abstract

ABSTRACTA research on processing of instant drink powder was conducted utilizing under-valued and under-utilized nutmeg flesh and papaya fruit in spite of their high content of vitamins A and C, withaddition of maltodextrin. This product was expected to increase the profit of papaya’s andnutmeg’s farmers. Instant drink powder is a product that can be easily served by adding hot or coldwater and mix. Maltodextrine plays an essential role in processing of instant drink powder as filler.It also contributes to drying, flavoring and volume of the product. The results showed thatmaltodrxtrin has a protective effect to reduce heat destruction of vitamin C during instant drinkprocess. With 15% matodextrin addition resulted in product with the highest residual vitamin C(114.27 mg/100g). Sensory qualities were also improved with matodekstrin addition.
Pemanfaatan Kompos dan EM-4 pada Lahan Kritis Terhadap Serapan Hara, Pertumbuhan, dan Produksi Bawang Merah (Allium ascalonicum L) Di Kabupaten Minahasa. Joice.M.J. Supit; Y.E.B Kamagi; L.Th. Karamoy
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31319

Abstract

ABSTRACTField experiments on "Utilization of Compost and EM-4 in Critical Lands on NutrientUptake, Growth, and Production of Shallots (Allium ascalonicum L.) in MinahasaDistrict", with objectives in this study were Determine the optimal compost dosage foragricultural business; Determine the dose of EM-4 as an activator that can optimize theuse of compost; Utilizing critical land as productive land for agricultural activities;Improving soil physical properties, soil chemistry and soil biology for critical land becomeproductive land . The research was conducted in a field experiment by analyzing compostand soil before and after compost treatment. The compost dose treatment consisted of 0 ton/ ha as a control, 15 ton / ha; 30 ton / ha; 45 tonnes / ha and 60 tonnes / ha. The EM-4treatment consisted of 0 cc, 30cc and 60 cc / 100gr white sugar + 6 liters of water. Shallotplants as an indicator. The incubation period for compost is 2 weeks. The research methodwas a factorial experiment with a randomized block design and 3 replications. Thestatistical tests used are ANOVA and LSD analysis. The results of the study showed thatcompost treatment had a significant effect on growth and production of shallots, while EM-4 had no significant effect. Compost treatment of 45 tons / ha provides maximum nutrientuptake, growth and production of shallots.Key words: Compost, EM-4, Shallots, Critical Lands.
RESPON PEMBERIAN PUPUK ORGANIK KOMPOS PADA TANAH MARJINAL DENGAN INDIKATOR TANAMAN PAKCOY DI KOTA MANADO Karamoy Lientje Theffie; Verry R. Warouw; Ronny Nangoi
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31351

Abstract

ABSTRAKPenelitian ini bertujuan untuk mengetahui respon pupuk organik kompos terhadappertumbuhan pakcoy pada tanah marginal. Penelitian ini dilaksanakan di Rumah Kaca FakultasPertanian, untuk percobaan pot dan untuk analisa tanah, pupuk organik kompos dilakukan diLaboratorium Kimia dan Kesuburan Tanah Jurusan Tanah Fakultas Pertanian Unsrat Manado.Pelaksanaan penelitian ini akan berlangsung selama 6 bulan. Alat dan bahan yang digunakan dilapangan yaitu sekop, karung, ayakan pasir, mistar, alat tulis menulis, kamera, timbangan, benihpakcoy, polibag, air, pupuk organik kompos. Alat dan bahan yang digunakan dalamLaboratorium tercantum dalam metode analisis: pH, Nitrogen (Metode Kjedahl), Fosfor (MetodeBray I), Kalium (Metode Bray I), C-organik (Metode Walkley and Black).Penelitian dilakukan dengan menggunakan metode Rancangan Acak Lengkap, tiapperlakuan dicampur pasir dengan 3 kali ulangan sehingga diperoleh 12 pot percobaan dan terdiridari 4 perlakuan 3 ulangan. Analisis dengan menggunakan sidik ragam dan jika ada pengaruhnyata dilanjutkan dengan uji BNT 5%.Hasil penelitian diperoleh kandungan hara pada marginal adalah sangat rendah. Hasilanalisis sidik ragam diperoleh tidak adanya pengaruh yang nyata pemberian pupuk komposterhadap tinggi tanaman dan jumlah daun selama 5 minggu pengamatan, namun cenderungmeningkat dengan pemberian pupuk kompos. Pengaruh yang nyata terlihat pada berat segartanaman. Hasil uji lanjut menunjukkan adanya perbedaaan yang nyata antara perlakuanpemberian pupuk kompos.Kata kunci:Tanah Marginal,Kompos,Pakcoy.
KEANEKARAGAMAN JENIS BURUNG DI BEBERAPA TUTUPAN LAHAN DI SUAKA MARGASATWA MANEMBO-NEMBO Rian S. Darwis; Reynold P. Kainde; Wawan Nurmawan
COCOS Vol. 12 No. 3 (2020): EDISI JULI-SEPTEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.31709

Abstract

ABSTRACTThe purpose of this research is to be able to find out and analyze the diversity ofbird species in some land cover at Manembo-nembo Wildlife Reserve. Thisresearch was conducted in January-March 2020, a research location in theManembo-nembo Wildlife Reserve area which includes the administrative area ofSouth Minahasa Regency. The method used is the method of point count with thenumber of 7 points used as observation samples with each primary dry land forest3 points, dry land farming 3 points and dry land agriculture mixed with shrubs 1point. The data analysis used is (Shannon-Wiener Diversity Index), (RelativeAbundance Index), (Average Index) and (Type Similarity Index). The resultsshowed that there are 60 species of birds from 28 families in the Manembo-nemboWildlife Reserve in the South Minahasa adiministration region. This area has adiversity value (3.21) as an indicator of the high diversity of bird species. Forprimary dryland forest cover has a diversity index value (3.01) with a total of 34types, a value (2.97) with a total of 31 types on agricultural cover of dry landmixed with shrubs and the lowest value on dryland agricultural cover (2.77) witha total of 42 types.Keywords : Diversity of bird species, Land cover, Manembo-nembo WildlifeReserve

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