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All Journal EUGENIA Jurnal Agroekoteknologi Terapan AGRI-SOSIOEKONOMI COCOS
Tilda Titah
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Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences

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TINGKAT BAHAYA EROSI DI SUB DAS TONDANO BAGIAN TIMUR DENGAN APLIKASI SISTEM INFORMASI GEOGRAFI Irene R.S. Terok; Sandra Pakasi; Joice Supit; Tilda Titah
COCOS Vol. 6 No. 1 (2015)
Publisher : Universitas Sam Ratulangi

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Abstract

ABSTRACTThis study head to analyze the level of erosion (TBE) which occur in the eastern part of watershed Tondano with Geographical Information Systems Applications. The method used in the calculation is the USLE erosion and analysis degree erosion using a table of erosion potential based Geographical Information Systems. Observed variables are rainfall, soil erodibility, length and slope, crop management, soil conservation management. The results showed the level of erosion that occurs in watershed Tondano eastern part is divided into five classes: very heavy (SB), weight (B) moderate (S) light (R), and very light (SR). Very heavy class (SB) with and area of 719.20 hectares or 3.21%. weight (B) with and area of 17.07 hectares or 0.40% for, the class of moderate (S) with an area of 3250.13 or 77.35%. and for the lightweight class (R) with and area of 79.91 hectares or 0.40%. whereas for the classification of very light (SR) with and area of 135.01 hectares or 3.21%.keywords: Rainfall, soil Erodibility, length and Slopes, Crop Management, Land Use.
STATUS UNSUR HARA DAN pH TANAH DI DESA SEA, KECAMATAN PINELENG KABUPATEN MINAHASA Silwasty Kotu; Jenny J. Rondonuwu; Sandra Pakasi; Tilda Titah
COCOS Vol. 6 No. 12 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v6i12.8542

Abstract

Abstract The study aims to determine the status of soil nutrients and pH in the village Sea, sub Pineleng Minahasa district. This research was conducted in January to April 2015 using a survey method, in which soil samples were taken by slope and land use. Soil samples were taken at five points at a depth of 0 to 40 cm and 40 cm larger. The variables measured were nitrogen (Kjedhal method), phosphorus (Bray I method), Potassium (Bray method I), C- organic (Walkley and Black method) and soil pH (pH meter). Research data analysis using descriptive analysis. The results showed that soil pH in the research sites is in the range of 6.29 to 6.48, the content of the element nitrogen is in the range of 0.12% to 0.27%), phosphorus content in the range of 8.60 ppm to 14.29 , potassium element content is in the range of 1.72 ppm to 11.95 ppm, and organic matter content of 1.52% to 3.17%. Keywords: C-organic, Phosphorus, Potassium, Nitrogen, pH
EVALUASI KESESUAIAN LAHAN UNTUK TANAMAN PINANG (Areca catechu) DI DAS REMU, SORONG , PAPUA BARAT Fernando D. Korwa; Jailani Husain; Tilda Titah; Joice Supit
COCOS Vol. 7 No. 4 (2016)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i4.12602

Abstract

ABSTRACTThe purpose of this study was to determine the land suitability for areca nut (Areca catechu) in Remu watershed, Sorong, West Papua Province. This research uses descriptive method comprising of survey and map overlay. This research was conducted in the field and the GIS laboratory, Faculty of Agriculture, University of Sam Ratulangi. The research was conducted during ± 4 months, namely from January to April 2015. It was revealed that within 5771.74 ha of suitable area, 2581.76 ha area was classified as the most suitable, 898.7 ha as fairly suitable, and 1730.57 ha as marginally suitable. In addition, 509.78 ha area was evaluated as presently not-suitable and 50.93 ha as permanently not suitable. Further study is required as to provide more specific site information on land suitability for areca nut in the study area.Keywords : GIS, land suitability, areca nut
Pemetaan Sifat Fisik dan Kimia Tanah Pada Lahan Persawahan Di Kecamatan Kotamobagu Timur Feronicha Efratha; Sandra E. Pakasi; Tilda Titah; Jemmy Najoan
COCOS Vol. 11 No. 2 (2019): EDISI APRIL-JUNI
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.27340

Abstract

ABSTRACT The purpose of this research is to map the physical and chemical properties of soil on paddy fields in Kotamobagu Timur sub-district. This research was held in October to December 2019. This study used a survey method, in which soil samples were taken at 25 points spread over 658.17 ha or 27.78% of the area of East Kotamobagu District.Mapping conducted out in the Geospatial and Environmental sub-laboratory of the Faculty of Agriculture, Sam Ratulangi University. The outcome map of the physical properties of paddy soils in Kotamobagu Timur District is at texture class of clay and chemical properties of paddy soil with each respective criteria neutral soil pH, C-organic low to moderate, Nitrogen low to moderate, Phosphorus and Potassium currently being moderate. The situation of Nitrogen and C-organic for lowland rice plants is still in the low category. Keywords: Mapping, Paddy Fields, Physical Properties, Chemical Properties
ANALISIS KANDUNGAN BAHAN ORGANIK TANAH DI KEBUN TRADISIONAL DESA SEREH KABUPATEN KEPULAUAN TALAUD Riansen Alva Nangaro; Zetly E, Tamod; Tilda Titah
COCOS Vol. 12 No. 4 (2020): EDISI OKTOBER-DESEMBER 2020
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i1.32111

Abstract

ABSTRACTThe objectives of this study were to determine the content of soil organic matterin traditional gardens in Sereh Village, Lirung District, Talaud Islands Regency. Thisresearch was conducted in the Traditional Garden of Sereh Village and the Laboratoryof Chemistry and Soil Fertility, Faculty of Agriculture, Unsrat for 1 month. Thisresearch uses a survey method. Sampling was carried out using the sampling methodin groups / cluster sampling (CS). Soil samples were taken with a depth of 0-50 cm,50-100 cm, and> 100 cm under the clove, nutmeg and coconut plants. The chemicalparameters analyzed were; organic matter content (Walkley and Black Method). Soilsamples were analyzed at the Laboratory of Chemistry and Soil Fertility, Departmentof Soil, Faculty of Agriculture, Sam Ratulangi University.Based on the results of the analysis, it shows that the organic matter content islow to moderate with the details that are in the low category, namely: In the 50-100 cmlayer -and> 100 cm the upper slope of the clove plant is 1.80% -1.20%, the nutmegplant is worth 1, 80%, and coconut plants worth 1.92%. The middle slope of the cloveplant was 1.80% -1.20%, the nutmeg plant was 1.20%, and the coconut plant was1.80%. The lower slope of the clove plant was 1.92% -1.68% -1.56%, the nutmeg plantwas 1.80% -1.20%, and the coconut plant was 1.56%. And in the medium category,namely: In layers 0-50 cm and 50-100 cm, the upper slope of the clove plant is 3.95%,the nutmeg is 3.59% -2.99%, and the coconut plant is 3.71% - 2.40%. The middle slopeof the clove plant was 3.59%, the nutmeg plant was 3.95% -3.35%, and the coconutplant was 2.99% -2.40%. The lower slope of the nutmeg plant is 3.11%, and under thecoconut plant it is 3.95% -2.04%.Keywords: Analysis of organic matter
KANDUNGAN HARA FOSFOR DAN KALIUM DI SEKITAR PERAKARAN TANAMAN UBI KAYU (Manihot Esculenta Cranz) Noviane Stela Tampil; Djoni Kaunang; Tilda Titah
COCOS Vol. 14 No. 2 (2022): EDISI APRIL-JUNI 2022
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v7i7.36035

Abstract

ABSTRACTCassava is a food crop that is widely grown in the village of Salurang, Tabukan Selatan TengahDistrict. To develop this plant so that it produces better, it is necessary to conduct research onthe availability of nutrients around the roots. P and K elements are elements needed by cassavaplants, therefore it is necessary to research the availability of nutrients around the roots. Thisstudy aims to determine the nutrient content of phosphorus and soil potassium around the rootsof cassava. The benefit of this research is to determine the right fertilizer in to increase theproduction of cassava plants. The research method used a survey method with purposivesampling on cassava plants which have tubers and have not. Sample analysis using the dry soiltest (PUTK) version 1.0. Bogor Soil Research Institute The results of the analysis showed thatthe phosphorus nutrient content around the roots of the tuberous cassava plants ranged from lowto moderate, while potassium was low to high. Cassava plants that have not been rooted showthat the phosphorus content is moderate, while potassium ranges from moderate to high.Keywords: Phosphorus and Potassium Nutrients
Co-Authors Djoni Kaunang Doodoh, Beatrix Fernando D. Korwa Fernando D. Korwa, Fernando D. Feronicha Efratha Irene R.S. Terok Jailani Husain Jemmy Najoan Jenny J. Rondonuwu John L. Rantung, John L. Joice Supit Joko Purbopuspito Kamagi, Yani Ezrah Bartolomeus Nangoi, Ronny Noviane Stela Tampil Pemmy Tumewu Polii, M. G. M. Polii, Maria G. Porong, Jelie V. R. Mamarimbing, R. Raintung, J. S. M. Raintung, Jeane S. M. Riansen Alva Nangaro saartje Sompotan Sandra E. Pakasi Sandra Pakasi Silwasty Kotu Silwasty Kotu, Silwasty Sompotan, S. Sondakh, T. D. Sumampow, D. M. F. Tindage, Jorly Richarzon Tulung, Stella M. T. Tulungen, Antje Grace Walingkas, Stanley A. F. Zetly E, Tamod