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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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EROSI DAN INFILTRASI PADA LAHAN HORTIKULTURA BERLERENG DI KELURAHAN RURUKAN Ismianti Huntojungo; Joice M. Supit; Jailani Husain; Rafli I. Kawulusan
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1512

Abstract

ABSTRAKPengolahan tanah intensif yang bertujuan untuk membersihkan gulma dan menciptakan media tumbuh yang gembur pada lahan berlereng menyebabkan tertutupnya pori-pori tanah dan menghambat proses infiltrasi. Proses infiltrasi yang terhambat dapat memicu terjadinya erosi. Pemberian bahan organik (kompos) diharapkan untuk memperbesar kapasitas infiltrasi sehingga dapat mengurangi erosi. Penelitian ini bertujuan untuk mengetahui berapa besar erosi dan infiltrasi yang terjadi pada lahan hortikultura yang berlereng. Penelitian ini dilakukan di lapangan menggunakan metode petak kecil. Hasil penelitian rata-rata erosi yang terjadi pada lahan hortikultura berlereng pada petak teras guludan dengan kompos yaitu 6,54 ton/ha/tahun dan petak guludan tanpa kompos yaitu 4,45 ton/ha/thn. Rata-rata infiltrasi pada lahan hortikultura berlereng dengan perlakuan guludan tanpa kompos lebih tinggi (222552,01 mm/jam) dibandingkan dengan infiltrasi pada lahan hortikultura dengan perlakuan teras guludan dengan kompos (41464 mm/jam).Kata kunci : Erosi, Infiltrasi, Lereng
Inventarisasi Parasitoid Hama Tanaman Padi Sawah di Kabupaten Minahasa Utara Ariyane O.S. Siwu; Jantje Pelealu; Christina L. Salaki; Noni N. Wanta
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1513

Abstract

ABSTRACTInsect parasitoids are small or as large as the host to parasite and off the host. The research was conducted in lowland rice planting area in North Minahasa regency. Research purposes to determine the type and parasitoid populations on rice crop pests in sub Kauditan, Talawaan, and Dimembe. The research was done by sweeping using insect net swing of 20 times on the location of paddy rice crops, sampling is done three times at intervals of two weeks representing all phases of rice growth was identified in the laboratory and then analyzed descriptively. The results showed that the insect parasitoid found was of the Order Hymenoptera and Diptera and in different types and each sub-population, namely, District Kauditan there are 19 types, 19 types Talawaan, and Dimembe13 types. Parasitoids Telenomus spp. average of 6.5 tail in Kauditan, Dimembe 4.5 tail, while the tail Talawaan 3.6 Apanteles sp. average of 6.5 in sub Dimembe tail, Talawaan 6 tails, and tails Kauditan 3.8.Keywords :Parasitoids, Hymenoptera, Diptera, Rice plants
INVENTARISASI SERANGGA-SERANGGA PADA PERTANAMAN NENAS (Ananas comosus (L.) Merr.) MONOKULTUR DAN POLIKULTUR DI KABUPATEN BOLAANG MONGONDOW Mariane K. Lumananw; Juliet E.M. Mamahit; Moulwy F. Dien; Guntur M.J. Manengkey
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1514

Abstract

ABSTRACT Pineapples are a fruit that grows on bushes with the scientific name Ananas comosus. They are native to Brazil (South America) and have been domesticated there since before Columbus’ advent. In the 16th century, Spaniards brought pineapples to the Philippines and the Malaysian Peninsula, then into Indonesia in the 17th century. This study aims to know the insects associated to monocultured and polycultured pineapples (A. comosus) and to know the dominant insects among said plants. This study is expected to inform about significant insects, both as pests as well as natural enemies, so it can be managed in pineapple planting systems and used in pineapple pest control. This study was done in the pineapple plantation village of Lobong and Mongkunai, regency of BolaangMongondow. Laboratory observations were done in the Weeds and Entomology laboratory of the Agriculture Faculty, University of Sam Ratulangi. Observation of insects on plant pineapples were calculated using the trap sinks. Insect observations showed that there are 6 insect orders founded to monocultured and polycultured pineapple plants, namely: Coleoptera Orders, Orthoptera Orders, Diptera Orders, Hymenoptera Orders, Collembola Orders and Lepidoptera Orders. Dominant insects in the monocultured and polycultured pineapple plantations are firstly from the Hymenoptera Order (Family of Formicidae), next from the Orthoptera Order (Family of Acrididae), third from the Coleoptera Order (Family of Scolytidae) and fourth from the Diptera Order (Familiy of Drosophilidae). Key words : Pineapple Plant (Ananas comosus), Inventory of insects, Monocultured And Polycultured.
PADAT POPULASI DAN INTENSITAS SERANGAN HAMA WALANG SANGIT (Leptocorisa Acuta Thunb.) PADA TANAMAN PADI SAWAH DI KABUPATEN MINAHASA TENGGARA Rivo Manopo; Christina L. Salaki; Juliet E.M. Mamahit; Emmy Senewe
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1515

Abstract

ABSTRACTPaddy is the most important staple food in Indonesia, since more than half of the population is dependent on the rice that the paddy plants produce. About 1,75 billion of the three billion Asians, including 210 million Indonesians rely on rice as their primary source of calories. The object of this research is to know the population density and infestation intensity of the paddy bug L. acuta on paddy plants in the North Tombatu, East Tombatu and Pasan Districts of the South-east Minahasa Regency. This research is expected to inform about the population density and infestation intensity of the paddy bug L. acuta in several different places and attempts in controlling it. Results of this research show that the paddy bug has spread in paddy fields over the three districts. The highest population was found in the district of East Tombatu (33,9 individuals / ten double sweeps), followed by the Pasan District (24,1 individuals / ten double sweeps), while the district of North Tombatu had the lowest population (9,2 individuals / ten double sweeps). The high paddy bug population is influenced by environmental factors and farmers’ habits in breeding field paddy plants. The intensity of the paddy bug infestation is already high, so the presence of this pest is highly worrisome.Key words : paddy plants, population density and infestation intensity, paddy bug pest (Leptocorisa acuta Thunb.)
VOLUME DAN KOEFISIEN ALIRAN PERMUKAAN PADA AREAL PERTANAMAN WORTEL DI KELURAHAN RURUKAN KECAMATAN TOMOHON TIMUR Yudi C.L. Pakpahan; Sandra E. Pakasi; Jeanne E. Lengkong; Jenny Rondonuwu
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1516

Abstract

ABSTRAK Penelitian ini bertujuan untuk menganalisis aliran permukaan yaitu debit dan kecepatan aliran permukaan pada areal pertanaman wortel dengan tindakan teknik konservasi tanah dan air yaitu guludan tradisional dan teras guludan dengan penutupan mulsa plastik. Lokasi penelitian terletak di Kelurahan Rurukan, Kecamatan Tomohon Timur. Metode yang digunakan adalah metode petak kecil dengan dua perlakuan teknik konservasi tanah dan air yaitu guludan tradisional dan teras guludan dengan penutupan mulsa plastik. Hasil penelitian menunjukkan bahwa aliran permukaan pada areal pertanaman wortel dengan teknik konservasi tanah dan air dengan penutupan mulsa plastik lebih tinggi dibandingkan dengan tanpa penutupan mulsa plastik yaitu guludan tradisional. Volume aliran permukaan lebih tinggi 130% dan koefisien aliran permukaan lebih tinggi 100%. kata kunci: aliran permukaan, Rurukan, konservasi tanah dan air
PROFIL USAHA BUBUR JAGUNG MUTIARA DI MALALAYANG SATU TIMUR MANADO Evangelista Ch. Ray-Ray; Hanny Anapu; Theodora M. Katiandagho; Vicky R.B. Moniaga
COCOS Vol. 2 No. 2 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i2.1517

Abstract

AbstractThe objective of this research is to determine the profile of the business grits pearls. This study uses primary data obtained through interview techniques directly to business owners using questionnaires. The method of data analysis used in this study is a descriptive analysis of data. Data collected are presented in tabular form, and then the analysis costs, revenue, profits, and break-even point analysis is used.The results of this research indicated this business received a profit of Rp. 2.097.043 for a month of production. The results of analysis of the break-even point in this business, when production volume amounted to 376 grits pearls to glass for 5 times the production process. Business owners foresight in seeing the market opportunity and the selection of the strategic place of business, resulted in business is quite promising and may increase the family income.Based on this research it can be concluded that the business grits pearls is household-scale business. There was no bookkeeping in this business and, business owners also concurrently into labor. Therefore, it is necessary to the holding of bookkeeping about business grits pearls by business owners and increase the workforce to expand the business grits pearl. The results of the analysis ratio of R/C of 1,2 indicates that the business is feasible to be developed. In addition, this business has aesthetic value in which business owners are not limited to for-profit but it refers to the service to consumers.
EROSI PADA LAHAN HORTIKULTURA YANG DITANAMI WORTEL ( Daucus carrota L.) DI KELURAHAN RURUKAN KECAMATAN TOMOHON TIMUR Cyndi S. Faizal; Meldi Sinolungan; Zetly Tamod; Tommy Sondakh
COCOS Vol. 2 No. 3 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i3.1534

Abstract

ABSTRACTThe type of soil in the research site is Andisol soil with clay texture. The Andisol soil characteristics is a dark color / black, gray, dark brown to yellowish. The soil derived from volcanic ashes from the eruption of the volcano. Therefore, this type of soil are found in the area around the volcano's slopes. Like the soil in this research is located on the slopes of Mount Mahawu. Although it has many advantages, but the ground Andisol also has many disadvantages. Andisol ground weakness is due to the loose structure and crumbly, the type of soil is very easy take by rainwater. Therefore, in this research, land conservation efforts in the form of plastic mulching. In this study the use of plastic mulch as a treatment, more soil erosion results in the use of plastic mulch plots compared to not using plastic mulch. This is due to the use of plastic mulch, most of the rain water does not infiltrated into the ground because it was blocked by the plastic mulch, causing greater runoff. Large land runoff causes soil erosion more bigger easily transported.Keywords : Erosion, Soil Conservation Technique, Holticulture, Carrot (Daucus carrota L.)
Potensi Lahan Untuk Tanaman Kelapa (Cocos nucifera L) Di Kecamatan Wori Kabupaten Minahasa Utara Sari Prativi Suratinojo; Joice Supit,; Yani Kamagi; Meldi Sinolungan
COCOS Vol. 2 No. 4 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i4.1629

Abstract

AbstractWori districts which has an area of 90.704 km2 is one of North Minahasa district that processed into oil palm plantations, coconut flour, nata de coco, coconut shell charcoal and coconut trees. Coconut flour is one of the oil derivative products (integrated coconut) recorded the many buyers and scattered in almost all parts of the world. Buyers of coconut flour was more focused on Eastern Europe, but is now rapidly spreading evenly over all the continents in the world. Anticipate in terms of availability of coconut flour it is necessary to the development of the coconut crop, given the current availability of old coconuts began to decrease. This study aims to determine the potential of land for coconut (Cocos nucifera L) in District Wori North Minahasa regency. This research can provide input and information to the government and the people of North Minahasa district Wori in coconut planting efforts. The research was conducted in the District of North Minahasa regency Wori, and in Laboratory Soil Department of Faculty of Agriculture, University of Sam Ratulangi Manado. This study was conducted in July 2009 and September 2011. Research methods implemented by way of a survey method with land unit approach, the observed variable is the slope, effective depth, texture, erosion, drainage, soil type and land use. The data were then arranged in tabular form later described descriptive to determine appropriate land or potentially and inappropriate or potentially for coconut by coconut trees growing conditions The results showed that in the region have Wori climate types B1, namely: 7-9 wet months and <2 dry months. Wori altitude region is 0-610 meters above sea level with the form region is rather flat, undulating to mountainous. Slopes in the study area is dominated by slopes <15%. Wori soil characteristics in the area, where the physical and chemical properties of the soil, namely: effective depth, texture and drainage and soil pH, indicating that the soil in the area has the potential to Wori Based on comparison of coconut and palm trees growing conditions with the conditions of the study area Wori region potential for development of coconut plantations with a total area of 4637.80 ha
POTENSI LAHAN DI DESA KAHUKU KECAMATAN LIKUPANG KABUPATEN MINAHASA UTARA BERDASARKAN KELAS KEMAMPUAN Maya Pinamangung; Joice M.J. Supit; Jeanne Lengkong; Tommy D. Sondakh
COCOS Vol. 2 No. 4 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i4.1631

Abstract

ABSTRACTLand use without regard to its ability to cause a decrease in the quality of the land, land degradation because they will affect the potential of land. Determine land capability class is expected that the potential of land owned by the obvious. This study aims to assess the potential of rural land capability classes based Kahuku. Research results showed that land potentially useful views of the class abilities gained in the research area of land where two six-unit class III land units with an area of 8.5 ha and a four unit class IV land with total area of 67.35 hectares.Key words : Potential Land, Capability Land
PENYEBARAN HAMA Cylas formicarius F. PADA TANAMAN UBI JALAR (Ipomea batatas L.) DI BEBERAPA KETINGGIAN TEMPAT PROPINSI SULAWESI UTARA Noritha Ahuluheluw; Odi R. Pinontoan; Caroulus S. Rante; Emmy Senewe
COCOS Vol. 2 No. 4 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i4.1633

Abstract

ABSTRACTThis study aims to determine the insect pest population C. formicarius at different altitude. The experiment was conducted in several sweet potato plants centers in the Sinisir Village District of Modoinding South Minahasa Regency, Woloan Village 1 District of Central Tomohon, City of Tomohon, and Sumarayar Village District of Langowan Minahasa regency. The study was conducted from June to December 2012. The things that observed in this study were the number of larvae founded in sweet potato tubers are attacked by pests C. formicarius.The results showed that the average population of the pest C. highest formicarius found sequentially in the Village Sinisir, Sumarayar and Woloan 1, ie 23.0%, 10.0% and 6.8%. Chi-square analysis results as indicating a relationship between altitude and pest population C. formicarius. This is indicated by the value of its asymp sig 0.521 greater than 0.05.Keyword: Cylas formicarius F., Ipomea batatas L. Ubi Jalar, Desa Sinisir, Desa Sumarayar dan Desa Woloan 1

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