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Meldi T.M. Sinolungan
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Fakultas Pertanian Universitas Sam Ratulangi Manado
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INDONESIA
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 831 Documents
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KAJIAN SIFAT FISIK TANAH PADA TANAMAN BAYAM (Amarantus Sp.) DI DESA KALASEY KECAMATAN MANDOLANG KABUPATEN MINAHASA Melianus Taplo; Joice M. Supit; Sandra E. Pakasi
COCOS Vol. 10 No. 6 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i4.24279

Abstract

ABSTRACT Research has aimed to study the characteristics of physical soil on spinach (Amarantus Sp.) at Kalasey Village, Mandolang Sub-District, Minahasa Regency. Method has use for analysis was tabularis and for sampling was composite than analyzed to the laboratory for some variables such as: soil texture, permeability, and soil water content. Results have shown that the characteristics of physical soil were: texture (silty sand), permeability (rather fast) and the soil water content (well), so that these result were suitable for the growth requirements of spinach. Keywords : Physical Soil and Spinach.
PARASITISASI Diadegma semiclausum Hellen (HYMENOPTERA: ICHNEUMONIDAE) TERHADAP HAMA Plutella xylostella Linn. (LEPIDOPTERA: YPONOMEUTIDAE) PADA TANAMAN KUBIS DI DESA RURUKAN DAN KAKASKASEN II KOTA TOMOHON Rifal O. Manopo; Caroulus S. Rante; Mouwy Dien
COCOS Vol. 10 No. 4 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.24322

Abstract

ABSTRACT  The research aimed to determine the parasitization of D. semiclausum against P. xylostella in cabbage plants in Rurukan and Kakaskasen II Village, Tomohon City.  The research lasts for five months, from October 2018 to February 2019.  The study used a survey method that was carried out directly on farmers' cabbage plants.  Determining the location of collecting pupa samples is done by purporsive sampling, which is taking samples where there are cabbage plants in both locations, namely Rurukan and Kakaskasen II Village.  Sampling for observation of the percentage of parasitization was carried out directly, namely by taking pupae in the cabbage crop. Samples were placed in used container containers and covered with azahi cloth and then taken to the Entomology and Plant Pest Laboratory, the Sam Ratulangi University of Agriculture Faculty of Manado to be maintained and observed every day.  The results showed that the parasitization of D. semiclausum against pests of P. xylostella in Rurukan and Kakaskasen II villages was 25.57% and 24.76% respectively.  Keywords :  Cabbage plant, Plutella xylostella, Diadegma semiclausum
KAJIAN SIFAT FISIK TANAH UNTUK TANAMAN PISANG ABAKA (Musa textilis NEE) DI PERKEBUNAN PT.VIOLA FIBER INTERNASIONAL KABUPATEN MINAHASA TENGGARA Ronald Batubuaya; Yani E. B. Kamagi; Berry R. V. Joseph.
COCOS Vol. 10 No. 4 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.24323

Abstract

ABSTRACT  This research aimed to find out some physical properties of the soil for the developing the abaca banana at Silian Village, Silian Raya Sub district, Southeast Minahasa Regency, whether conditions at that location was suitable for the development of the banana plant abaca (Musa textilis NEE), or not.  This research was carried out on site estate of PT. Viola International Fiber in Silian Village.  Taking the soil samples at a depth of 0-20 cm and 20-40 cm in as many as six points.  Soil analysis was done in the Laboratory of Physics and Soil Conservation Soil Department, Faculty of Agriculture, University of Sam Ratulangi Manado.  The research was conducted with Descriptive Survey Method and the data ware collected in the form of a table, then drawn up and analyzed were descriptive.  The observed parameters were: soil texture, soil permeability, soil bulk density, moisture content of the soil, rainfall data, and elevation. The results of this study showed that, data and information on the physical properties of soils and the condition of the site showed that the land was suitable for crop growth of abacá.  Key words: physical properties of soils, Banana and Abaca (Musa textilis NEE)
ANALISIS CADANGAN KARBON DI HUTAN MANGROVE DESA BAHOI Ruth Polii; Johnny S. Tasirin; Semuel P. Ratag
COCOS Vol. 10 No. 4 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.24326

Abstract

Bahoi Village has an area of mangrove forest which is estimated to be as large as 36 ha which is well preserved by its people. The use of mangrove forests that do not consider the ecological role of mangrove forests can be one of the biggest threats to their sustainability. This study aims to calculate the stored carbon stock and species dominance in the Bahoi Village mangrove vegetation. This research is expected to be a source of data and information on carbon reserves, tourism management, species conservation, or sustainable production in Bahoi Village. The research method is systematic plot sampling. There were 15 plots with 5 plots each in 3 different cover types namely residential, tourism trail, and open tourism areas. Analysis of carbon stocks used alometric equations, structure and composition used INP, the results shows that carbon reserves are mostly in Sonneratia alba (64.41 kg / ha), followed by Bruguiera cylindrica (44.54 kg / ha), Rhizophora mucronata (43.04 kg / ha), Bruguiera gymnorhiza (35.88 kg / ha), Ceriops tagal (28.77 kg / ha), and the lowest Rhizophora apiculata ( 16.80 kg / ha). The highest carbon stock is found in residential area (45,39 kg/ha) followed by tourism trail (36,59 kg/ha) and open tourism area (29,29 kg/ha). Keywords: Mangrove Forest, Carbon, Bahoi
ANALISIS SIFAT KIMIA TANAH PADA TANAH YANG DI TANAMI TANAMAN TOMAT(Solanum Iycopersicum L)DI DESA TONSEWER MINAHASA ANALYSIS OF SOIL CHEMICAL PROPERTIES ON SOILS THAT ARE TOMATOUS PLANTS (Solanum Iycopersicum L) IN TONSEWER MINAHASA VILLAGE Steven Tambanaung; Diane D, Pioh; Wiesje J. N. Kumolontang
COCOS Vol. 10 No. 4 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.24329

Abstract

ABSTRACT Soil  is a natural body that occupies most of the surface of planet Earth.  Soil as a medium for growing plants with various properties possessed. Tomato cultivation is not only on plantation land.  Soil chemistry concerns the composition of minerals, organic matter, and environmental factors. Components of soil chemistry include pH, organic C and essential nutrients. Soil reaction (pH) is a characteristic or parameter that shows acidic conditions in the soil. The taste of tomatoes is sweet - fresh sweetness that can provide freshness to the body. The optimal rainfall for tomato growth is 100-220 mm / rain with the ideal daily temperature, which is 25-30oC. Keywords: Soil Chemical Properties, Tomato Plants
DAERAH JELAJAH DAN PERILAKU MACACA NIGRA DI KAWASAN SUAKA MARGA SATWA MANEMBO NEMBO Adha Yakseb; Johny S. Tasirin; Marthen T. Lasut
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24355

Abstract

ABSTRACT Macaca nigra is one of seven species spread on the island of Sulawesi. Macaca nigra has experienced a decline in population due to widespread hunting and habitat loss, so Macaca nigra is now listed as endangered. Knowledge of the home range and population of Macaca nigra in the Manembo nembo Wildlife Reserve is one of the important elements in the management of the Wildlife Sanctuary. The study was conducted in the Manembo-nembo Wildlife Sanctuary. Tomabariri District, Minahasa. The study took place in September 2018. The research method was carried out by observing one Macaca nigra group continuously throughout the day. The results of the study showed that the Macaca nigra group at the study site were 26 individuals. Macaca nigra has a specific home range The population of Macaca nigra observed having roaming rotation only takes 1 day. The Macaca nigra group observed explored an area of 23.36 ha. The trip of the Macaca nigra group in one rotation ranged from 0.28-23.36 ha from the total observations for 14 days and the Macaca nigra group in the Manembo Nembo Wildlife Sanctuary had three sleeping trees and had 7 species of feed plants which became the highest preference was Ficus benjamina and Dracontomelon dao (32.1%). The type of tree is using for sleeping tree is Ficus benjamina, Dracontomelon dao, and Pterocapus indicus.
POLA AGROFORESTRI DI DESA KOKOLEH I KABUPATEN MINAHASA UTARA PROPINSI SULAWESI UTARA Fermi Basir; Hengki D. Walangitan; Reynold P. Kainde
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24356

Abstract

ABSTRACT The aim of the study was to describe the agroforestry patterns applied by farmers in Kokoleh I Village from November to December 2017. The method used was purposive sampling method using a sample plot measuring 20 m x 20 m. The variables observed were plant species and the number of individuals of each species. Data analyzed descriptively are presented in tabular form. The results showed that agroforestry patterns in Kokoleh I village were dominated by nantu and cempaka species for tree, coconut and nutmeg components for plantation, durian and langsat for fruit crops while seasonal crops were dominated by maize and peanuts.  Keywords: Agroforestry Pattern, Kokoleh Village I
Kesesuaian Lahan Tanaman Kedelai di Sebagian Wilayah Desa Sea dan Warembungan Kecamatan Pineleng Menggunakan Sistem Informasi Geografis Jesika Naumi Naibaho; Jooudie N. Luntungan; Maria Montolalu
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24357

Abstract

Abstrak  Penelitian ini bertujuan untuk mengetahui kelas kesesuaian lahan tanaman kedelai di sebagian wilayah Desa Sea dan Warembungan, Kecamanatan Pineleng. Penelitian ini dapat memberikan informasi kepada pemerintah dan  masyarakat Desa Sea dan Warembungan Kecamatan Pineleng Sulawesi Utara tentang kelas kesesuaian lahan  untuk tanaman kedelai beserta factor-faktor pembatas dalam pengelolaan tanaman ini. Penelitian ini dilaksanakan selama 6 (enam) bulan, terhitung sejak bulan Februari sampai Agustus 2018, dengan menggunakan metode survei melalui pendekatan unit lahan. Dalam penelitian ini, satuan lahan diperoleh dari hasil tumpang susun antara data penggunaan lahan, data kemiringan lereng. Data karakteristik lahan diperoleh dari pengamatan lapang dan hasil analisis sampel di laboratorium.  Teknik pengumpulan data berupa  observasi/pengamatan tanah di lapang dan analisis laboratorium. Teknik analisis data untuk mengetahui kelas kesesuaian lahan menggunakan sistem informasi geografis, yaitu dengan perangkat lunak ArcGIS 10.3 sehingga didapatkan peta kesesuaian lahan tanaman kedelai di sebagian wilayah Desa Sea dan Warembungan Kecamatan Pineleng. Hasil penelitian menunjukkan bahwa lokasi penelitian dengan luas 584,61 Ha yang merupakan sebagian Wilayah Desa Sea dan Warembungan  Kecamatan Pineleng memiliki enam unit lahan. Unit-unit lahan ini mempunyai potensi untuk pengembangan tanaman kedelai. Secara aktual lokasi ini memiliki kelas kesesuaian  N (Tidak Sesuai) dengan faktor pembatas curah hujan, bahaya erosi dan kedalaman efektif. Namun, secara potensial lokasi ini memiliki kelas kesesuaian lahan S3 (Sesuai Marginal) apabila dilakukan  usaha-usaha perbaikan seperti saluran drainase, pembuatan teras dan penanaman tanaman penutup lahan.  Kata Kunci : Kesesuaian Lahan, Kedelai, Sistem informasi Geografis
LAJU RESAPAN BIOPORI PADA BEBERAPA TIPE TANAH BIOPORIAL APPROACHRATE IN VARIOUS SOIL TYPES Lidia Anike Pandeirot; Josephus I Kalangi; Alfonsius Thomas
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24358

Abstract

ABSTACT  The city of Manado annually experiences flooding in certain areas caused by changes in land use, a cycle of reduction in river capacity, and public awareness in disposing of garbage and maintaining a very low environment. The study was conducted at four locations namely Pandu subdistrict,Rurukan sub-district,Kali village and Matungkas village. In order to determine the rate of water absorption and the minimum amount of biopore infiltration holes in four different soil types. From this research, it is expected to be able to provide information for the government and the developing community to be taken into consideration in efforts to prevent flooding and minimize surface runoff. The method in this study uses a factorial randomized design as a method of retrieving data which is then analyzed using an analysis of two way variants. The results of the study show that the rate of recharge has a significant effect on the level of depth, and type of soil. The highest absorption rate is in the regosol soil type and at a depth of 75 cm. Keywords : Biopori, Floods, Biopore Infiltration Holes
STATUS KESUBURAN KIMIA TANAH DI KECAMATAN MAPANGET KOTA MANADO Nining Soleman; Jenny J. Rondonuwu; Sandra Pakasi
COCOS Vol. 10 No. 5 (2018)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i3.24359

Abstract

ABSTRACT  The study aimed to determine the soil chemical fertility status in Mapanget District, Manado City. This research was conducted from January to April 2018. The research method used is the survey method, where soil samples are taken at six points based on land use. Nutrients analyzed were Nitrogen (Kjedhal Method), Phosphorus (Bray I Method), Potassium (Bray I Method), Organic C (Walkley and Black Method) and pH (Kjedhal Method). The data obtained were analyzed descriptively. The results showed that soil pH in the study location was in the range of 6.49 to 6.80, the elemental content of nitrogen was in the range of 0.15% to 0.24%, the content of phosphorus was in the range of 11.56 ppm to 23.16 ppm, the content of Potassium is in the range of 14.58% to 33.65%, and the C-organic content is in the range of 1.87% to 2.22%.  Keywords : Nitrogen, Phosphorus, Potassium, C-organic, pH

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