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All Journal The Studies of Social Sciences COCOS EKOTON International Journal of Contemporary Sciences (IJCS)
Jenny Rondonuwu
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Religion Agriculture, Biological Sciences & Forestry Humanities Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Social Sciences

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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
GROUND IMPROVEMENT TEST CHEMICAL PROPERTIES OF GOLD MINE USED BY USING SOME KIND OF COMPOST Frengky F. Kosho; Zetly Tamod; Jenny Rondonuwu; Wiesje Kumolontang
COCOS Vol. 3 No. 5 (2013)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v3i5.2374

Abstract

ABSTRACT The purpose of this study was to determine the effect of compost on land mined gold and knowing which one is the best type of compost to the early growth of the plant jackfruit. This research used Completely Randomized Design (CRD) factorial with 2 faktoral namely Factor A: types of compost with three levels while the B factors and three levels of fertilization and repeated 3 times so have 27 pot experiment. The results composting on mined land can improve soil chemical properties in this case the addition of the nutrients N, P, K and C-organic. Nutrient content of compost can be seen that the highest N content contained in compostable materials made of peanuts is 0.8%. While the highest available P in compost bins gamal is 16.79 ppm, the highest available K in compost market is 55.3 ppm and C-gamal organic compost is the highest at 9.11%. Jackfruit plant growth height and number of leaves both the best in the mined soil compost bins given market.
Test Of Nutrients Content Of Nitrogen, Phosphorus, And Kalium On Paddy Fields Area Of Mopuya Village Of North Dumoga Sub District Of Bolaang Mongondow Regency Kowaas, Freandy; Karamoy, Theffie; Kumolontang, Wiesje; Luntungan, Jooudie; Kaunang, Djoni; Rondonuwu, Jenny; Kawulusan, Rafli
EKOTON Vol. 4 No. 1 (2022): ISSUE JANUARY - JUNE 2022
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35801/ekoton.v5i1.49532

Abstract

Dumoga, one of some regions of Bolaang Mongondow Regency, is a central region of rice production and so has the most important role in fulfilling the effort of people’s food needs. The research aimed to know the content of nutrients of Nitrogen, Phosphorus, and Kalium in the paddy fields area of Mopuya Village of North Dumoga Sub-district of Bolaang Mongondow Regency. Analysis of soil samples in the field used Paddy Fields Test Tool (PFTT). The research was conducted for six months from March 2022 to September 2022. The method was Survey Method by sampling soil technique in compositing the samples (whether systematically, or randomized), in which the soil samples were taken on three kinds of soil conditions, i.e.: soil ready to cultivate, the soil one month after planting, and soil after harvesting. Results showed the analysis of N content of soil ready to cultivate, soil one month after planting, and soil after harvesting were low to medium (0.16% – 0.23%). The content of P-available in the soil of ready to cultivate, soil one month after planting, and soil after harvesting were very low to low (8 – 15 ppm). The content of K-available in the soil ready to cultivate, the soil one month after planting, and the soil after harvesting were low to medium (26 – 40 ppm). Keywords: Nitrogen, Phosphorus, Kalium, Paddy fields area  
Penyuluhan Cara Pemupukan Berimbang pada Tanah Sawah di Desa Winebetan Kecamatan Langowan Selatan Rondonuwu, Jenny; Kumolontang, Wiesje J N; Kamagi, Yanny; Kawulusan, Rafli; Sinolungan , Meldi
The Studies of Social Sciences Vol. 7 No. 1 (2025): The Studies of Social Sciences
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35801/tsss.v7i1.59822

Abstract

Wilayah Desa Winebetan Kecamatan Langowan Selatan umumnya memiliki lahan sawah yang cukup luas. Luas lahan yang cukup besar ini perlu didukung dengan ketersediaan hara cukup bagi pertumbuhan tanaman padi sepanjang tahun. Kondisi lapangan sering terkendala sumber hara berupa pupuk kurang tersedia untuk kebutuhan tanaman padi sehingga lahan sawah yang ada ditanami padi produksinya berkurang. Pemupukan sangat dibutuhkan diperlukan dalam proses pertumbuhan tanaman padi sawah. Ketersediaan pupuk untuk pertumbuhan tanaman padi seringkali tidak tersedia cukup pada saat tanaman padi membutuhkannya. Untuk itu melalui transfer teknologi kepada petani sawah melalui penyuluhan tentang bagaimana mengelola pupuk dengan pemupukan berimbang yang sesuai bagi pertumbuhan tanaman padi sangat diperlukan sebagai tambahan pengetahuan bagi petani sawah dalam rangka pengelolaan lahan sawahnya. Target yang ingin dicapai dari program ini adalah: Meningkatkan pengetahuan dan kemampuan petani/mitra di desa Winebetan kecamatan Langowan Selatan tentang pemupukan berimbang pada tanaman padi. Metode pelaksanaan kegiatan PKM dilakukan melalui langkah-langkah sebagai berikut: 1). Proses identifikasi masalah lahan sawah Mitra; 2). Kajian kondisi tanah di lahan sawah; 3). Penetapan bentuk teknologi tepat guna; dan 4). Memberikan penyuluhan cara teknologi pengelolaan pupuk berimbang. Dalam pelaksanaan penyuluhan, Tim mentranser ilmu kepada mitra dengan jalan penyuluhan tentang pemupukan berimbang di tanah sawah. Sedangkan Mitra akan membantu dan berperan aktif dalam pelaksanaan penyuluhan.
Stainless Steel Construction for Palm Sap Filtration Using the Buchner Method Tuturoong, Nancy Jeane; Robot, Jimmy Reagen; Rondonuwu, Jenny; Mononutu, Edmond C.
International Journal of Contemporary Sciences (IJCS) Vol. 2 No. 1 (2024): November 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijcs.v2i1.12401

Abstract

Palm sap, the primary raw material for palm sugar and other derivative products, often faces quality issues due to the presence of solid particles, dirt, and microorganisms that accelerate fermentation and spoilage. This study aimed to design and construct a stainless steel filtration device based on the Buchner method to enhance the cleanliness and quality of palm sap. The filtration system employs a vacuum mechanism to expedite the separation of solid impurities, improving efficiency over conventional gravity methods. Laboratory-scale testing evaluated filtration capacity, clarity, and process time efficiency. Results demonstrated that the device significantly increased sap clarity while reducing filtration time. Additionally, the stainless steel construction proved easy to clean and durable for repeated use. This innovation benefits traditional Minahasa farmers in North Sulawesi, enabling them to produce higher-quality palm sugar. The filtration process effectively reduced dust and water content while increasing sugar concentration to 21.3 Brix without requiring extensive cooking. The use of the Buchner method and SS304 stainless steel construction ensures consistent filtration quality, offering a practical solution to improve palm sap processing and enhance farmers' incomes.
Co-Authors Djoni Kaunang Frengky F. Kosho Jeanne E. Lengkong Kamagi, Yanny Karamoy, Theffie Kowaas, Freandy Kumolontang, Wiesje J N Luntungan, Jooudie Mononutu, Edmond C. Rafli Kawulusan Robot, Jimmy Reagen Sandra E. Pakasi Sinolungan , Meldi Tuturoong, Nancy Jeane Wiesje Kumolontang Yudi C.L. Pakpahan Zetly Tamod Zetly Tamod