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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Seminar Nasional Lahan Suboptimal PERENNIAL COCOS
Sandra E. Pakasi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Materials Science & Nanotechnology Physics Other

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RANCANG BANGUN SISTEM INFORMASI INDUSTRI KELAPA DI PROVINSI SULAWESI UTARA BERBASIS WEB-GIS Grentino Marcelo Durand; Dedie Tooy; Sandra E. Pakasi
COCOS Vol. 11 No. 3 (2019): EDISI JULI-SEPTEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v3i3.29659

Abstract

ABSTRACT The purpose of this research is to design and build an information system of coconut industry in North Sulawesi province by utilizing web-based Geographic Information System (GIS) and internet technology. This research was conducted to provide information of coconut industry in the web-GIS based North Sulawesi province with a wide range. This research uses the SDLC (System Development Life Cycle) method or is known as a system development lifecycle. Information system on the coconut industry in North Sulawesi province can be accessed by internet users by typing the URL in the Addressbar http://industrikelapasulut.unaux.com/. Keywords : Coconut industry. Information systems, WEB-GIS
PEMETAAN KONDISI FISIK JARINGAN IRIGASI DESA RASI RAYA KECAMATAN RATAHAN KABUPATEN MINAHASA TENGGARA BERBASIS SISTEM INFORMASI GEOGRAFIS Stevano F. X. Hariawan; David P. Rumambi; Sandra E. Pakasi
COCOS Vol. 11 No. 4 (2019): EDISI OKTOBER-DESEMBER 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v3i3.29662

Abstract

ABTRACTThe Lahendong Irrigation Network is located in Rasi Raya Village RatahanSubdistrict Southeast Minahasa Regency, which was established in 1971. In December 2013,damage to buildings and channels in the irrigation network. This research aims to make amap of physical conditions in the village of Rasi Raya, Ratahan District, Southeast MinahasaRegency, based on geographic information systems. This research was conducted in July2019-October 2019. The method is used in this research is imagery by using analysis fromGIS Software and measurements of the field. Lahendong Irrigation Network is geographicallyat 0°59'19.34"N-1°05'1.61"N (north latitude) and 124°44'27.66 "E-124°47'08.29"E (eastlongitude) altitude 225 – 340 meters above sea level, has an irigation network condition indexof 77.22% with an infrastructure weight of 34.75 out of a maximum value of 45, so periodicand routine maintenance was needed. The Lahendong Irrigation Network has an area of95.80 hectare and a channel of 9868 meters. Irrigation efficiency in the Lahendong IrrigationNetwork is 51.69% and water loss in the channel is 0.05 m3/second and evaporation is 3308mm/day. Lahendong Irrigation Network is presented in a spatial form namely Map ofLahendong Irrigation Network.Keywords : Physical Condition of Irigattion Network,Geographic Information System
Sebaran dan Persentase Serangan Hama Paralecta sp. Pada Tanaman Cengkeh di Kabupaten Kepulauan Sangihe Yunita Tahulending; Jackson F. Watung; Bernadeth V. Montong; Sandra E. Pakasi
COCOS Vol. 12 No. 1 (2020): EDISI JANUARI-MARET 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v5i5.30593

Abstract

ABSTRACTClove (Syzygium aromaticum L) is a trade plant that has a high economic value in Indonesia.This study aims to determine the distribution and percentage of pest attacks Paralecta sp. inthe Sangihe Islands Regency. This study uses a survey method or direct research at theresearch location. The study was conducted at several clove plantation locations in theSangihe Islands. Observation of the distribution of branch borer pests and clove branches wascarried out in clove plantations, then marked using GPS and recorded coordinate points thencopied to map images using the arcMap 10.5 mapping program. Observation The percentageof attacks carried out on plantations used as sample locations and determined 25 sample treesto be used to calculate the percentage of attacks. Results of the study There were 18 locationsfound pests attack Paralecta sp. namely in the Central Sangihe and to the southern part withthe percentage of attacks that reached 100%, namely in the Village of Malamenggu 448meters above sea level, 435 meters above sea level and 8 points of location that were notfound is a pest attack Paralecta sp. that is, in the middle of Sangihe to the northern part ofSangihe with 0% attack percentage.Keywords: Clove, Distribution, Paralecta sp. Percentage of attack
Analisis Sifat Fisik dan Kimia Tanah pada Lahan Sawah di Kecamatan Kotamobagu Utara Josua F. Manullang; Sandra E. Pakasi; Joice M. Supit; Jelie V. Porong
COCOS Vol. 12 No. 2 (2020): EDISI APRIL-JUNI 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i6.31052

Abstract

ABSTRACTThe study aims to determine the status of physical and chemical properties of soil on paddy soilin Kotamobagu Utara district. This research was conducted in November 2019 to January 2020using a survey method and laboratorios analysis. Soil samples were taken at thirteen points at adepth of 0 to 20 cm. The parameters measured were soila texture (Kang Biaw Tjwan method),pH (pH meter), C-organic (Walkley and Black method), nitrogen (Kjedhal method), phosphorus(Bray I method) and Potassium (Bray method I). Research data analysis using descriptiveanalysis. The results showed that soil texture in the research sites is silty loam, the content oforganic matter is in the range 1,25 % to 2,50 %, the content of soil pH is in the range 6,8 to 7,0 ,the content of the element nitrogen is in the range of 0.11% to 0.22% , phosphorus content in therange of 18.34 ppm to 23,21 , and potassium element content is in the range of 22,21 ppm to30,21 ppm. The chemical properties of paddy soils in Kotamobagu Utara District is at textureclass of silty loam and chemical properties of paddy soil with each respective criteria neutral soilpH, C-organic low to moderate, Nitrogen low to moderate, Phosphorus moderate and Potassiummoderate. In general, the physical and chemical properties of soil in paddy fields in KotamobaguUtara District are included in the criteria suitable for paddy soil.Key Word: Physical properties, chemical properties, Paddy Fields
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,
ANALISIS SISTEM JARINGAN IRIGASI BENDUNGAN PONTAK KABUPATEN BOLAANG MONGONDOW UTARA DENGAN SISTEM INFORMASI GEOGRAFIS Haiqal B. Rivai; David P. Rumambi; Sandra E. Pakasi
COCOS Vol. 13 No. 3 (2021): EDISI JULI-SEPTEMBER 2021
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v4i4.34919

Abstract

ABSTRACTThe purpose of this study is to analyze the irrigation network system of the PontakDam, North Bolaang Mongondow Regency based on geographic information systems. Themethod used in this research is the method of spatial analysis, namely a field survey by takingseveral measurements whose data is presented in the form of maps, tables and analyzeddescriptively. Information on the irrigation network of the Pontak dam has been presented ina spatial form in the form of a map of the irrigation network of the Pontak dam. The area ofPontak right irrigation network service is 131.63 Ha. If referring to the data from the PUPRService in the field of water resources, North Bolaang Mongondow Regency regarding thearea of rice fields in 2019 of 136.84 Ha, there is a difference in the area of rice fields of 5.21Ha. The index of the physical condition of the Pontak dam irrigation network is 93.44% witha weight of 42.05 infrastructure from a maximum value of 45.00, so routine maintenance isneeded.Keywords : Irrigation Network System, Geographic Information System
Co-Authors Annes Febriyanti Sababalat Benny . Bernadeth V. Montong Cicilia D. Maarebia David P. Rumambi Dedie Tooy Diane D. Pioh Dimas Ajie Saputra Febriyanto Pinoa Febriyanto Pinoa, Febriyanto Feronicha Efratha Grentino Marcelo Durand Haiqal B. Rivai Hizkia Bahihi Jackson F. Watung Jeanne E. Lengkong Jeanne Lengkong Jelie V. Porong Jemmy Najoan Jenny Rondonuwu Joice M. Supit Josua F. Manullang Juliet M.E. Mamahit Jusuf Manueke Luther Sefle Mamahit, Juliet Merry Eva Melianus Taplo Miranda R. Malamassam Montong, Vivi B. Rafli Kawulusan Robert Molenaar Stevano F. X. Hariawan Tilda Titah Trivandi Efraim Rambi Verry Ch. Warouw Yani E.B. Kamagi Yudi C.L. Pakpahan Yunita Tahulending Zetly E. Tamod Zetly Tamod Zetly Tamod