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Search results for , issue "Vol 2, No 7 (2019)" : 10 Documents clear
ANALISIS KUALITAS AIR IRIGASI AREAL PERSAWAHAN DI DESA RANOYAPO KECAMATAN RANOIAPO KABUPATEN MINAHASA SELATAN Rewur, Eucharisty S.; Polii, J.V Bobby; Tumbelaka, Selvie
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.26177

Abstract

ABSTRACT The purpose of this study was to determine the water quality in Ranoyapo Village, Ranoiapo District, South Minahasa Regency, which is used as irrigation water in the rice fields at Ranoyapo Village. This study was conducted for three months (3), from September to November 2018, the location of water sampling was at the part before entering the rice field and at the exit area at Ranoyapo Village, then has analyzed at the Manado Industrial Research and Standardization Laboratory Laboratory. The results of the analysis showed that the pH concentration before entering the expanse (6.71), on the exit part of the expanse (6.52) was in the good category. The concentration of DHL before entering the overlay (0.17830 ds / m) at the exit of the overlay (0.15880 ds / m) is in the good category. TDS concentrations before entering the overlay (244 mg / l), at the exit of the overlay (282 mg / l) in the good category. NO3-N concentration before entering the stretch (0.44 mg / l), at the exit of the stretch (089 mg / l) in the good category. The concentration of Clorida before entering the stretch (0,2178 me / l), at the exit of the stretch (0,2178 me / l) is in the good category. The concentration of Boron before entering the stretch (<0.08 mg / l), at the exit of the stretch (<0.08 mg / l) is in the good category. The concentration of PO4-P before entering the overlay (0.03 mg / l), at the exit of the overlay (0.09 mg / l) is in the good category. Potassium concentration before entering the stretch (3.49 mg / l), at the exit of the stretch (3.59 mg / l) is in the bad category. The results of the analysis of irrigation water quality in Ranoyapo Village with the parameters of pH, DHL, TDS, NO3-N, Clorida, Boron, PO4-P in good quality while Potassium in poor quality according to the comparison of Ayers and Wetscot irrigation water quality standards, 1985. Keywords: water quality, irrigation
UJI KINERJA ALAT PENGERING PALA MENGUNAKAN BAHAN BAKAR BIOMASSA Dadamuda, Dafrin; Lengkey, M.Si, Dr. Ir. Lady Ch.E; Rawung, M.Si, Handry
COCOS Vol 2, No 7 (2019)
Publisher : COCOS

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Abstract

ABSTRAK Penjemuran biji pala sering terhambat jika curah hujan tinggi akibatnya kadar air biji pala yang dikeringkan masih tinggi dan tidak merata dengan demikian biji pala dapat terkontaminasi dengan jamur yang dapat menghasilkan racun aflatoksin. Untuk mencegah hal itu maka perlu membuat alat pengering seperti yang disarankan oleh tim Indonesia – UE Trade Support Programme II. Alat yang disarankan oleh Tim Indonesia – EU Trade Support Programme II menggunakan sumber energi listrik dengan daya 1000 Watt. Hal ini menjadi masalah di desa Ambia kecamatan Esang Selatan. Masalah tersebut dapat diatasi dengan memodifikasi alat pengeringan dengan menggunakan tungku berbahan bakar biomassa. Penelitian ini bertujuan untuk menguji teknis alat pengering tipe bak dengan menggunakan bahan bakar biomasa dari segi sebaran suhu, menentukan hubungan kadar air terhadap waktu pengeringan. Penyebaran suhu pada ruang plenum, ruang pengering, suhu bahan dan suhu udara luar terjadi fluktuasi suhu dalam ruang pengering. Perbedaan suhu pengering (plenum) dan suhu lingkungan sangat jauh berbeda Suhu plenum atau suhu udara pengering terendah 53,6 0C, suhu tertinggi 77,6 0C dan suhu lingkungan suhu terendahnya 31,7 0C dan suhu tertinggi 37,2 0C. Pola penurunan kadar air terlihat hampir sama menunjukkan penyebaran suhu yang hampir merata.
KAJIAN KUALITAS AIR SUNGAI NIMANGA SEBAGAI SUMBER AIR IRIGASI PERSAWAHAN DESA PASLATEN KECAMATAN TATAPAAN KABUPATEN MINAHASA SELATAN Sumual, Vira Dewi; Polii, J.V Bobby; Ogie, Tommy B.
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.26179

Abstract

ABSTRACT This research aims to determine the water quality of Nimanga River in Tatapaan Sub district of South Minahasa Regency which became the source of paddy field irrigation in Paslaten village. This research was done for two months, namely in March to April, the location of water sampling is located at the five Points of Nimanga River (first point), irrigation (second point), Paddy Field A (Third point), field tile B (point Fourth), the end channel of the Paddy Field (fifth point), was done twice as much as the analysis in the BARISTAN laboratory. Based on the results of the analysis can indicate that the concentration of DHL on the first sample at the first point (0.317 DS/M), the second point (0, 330DS/m), the third point (0.328 DS/M), the point of the four (0.330 DS/M), the point of Kelim (0.333 DS/M), in good quality. The concentration of TDS in the first sample at the first point (260 mg/l), the second point (260 mg/l), the third point (289 mg/L), the fourth point (280 mg/L), the fifth point (221 mg/l), in good quality. The pH concentration in the first sample at the first point (7.22), the second point (7.89), the third Point (7.92), the fourth point (7.92), the fifth point (7.92), in good quality. Nitrate concentrations in the first sample at the first point (0.167 mg/l), the second point (0.678 mg/l), the third point (0, 652 mg/l), the fourth point (0, 339 mg/L), the fifth point (0, 370 mg/l), in good category. Concentrations of Clorida in the first sample at the first point (25.46 mg/l), the second point (27.34 mg/l), the third point (25.46 mg/l), the fourth point (29.23 mg/L), the fifth point (46.20 mg/l), in good quality. Then for the concentration of DHL on the second sample at the first point (0.330 DS/M), the second point (0.341 DS/M), the second point (0.338 DS/M), the fourth point (0.336 DS/M), the fifth point (0.334 DS/M), in good quality. The concentration of TDS in the second sample at the first point (308 mg/L), the second point (292 mg/l), the third point (307 mg/L), the fourth point (289 mg/L), the fifth point (271 mg/l), in good quality. The concentration of pH in the second sample at the first point (6.95), the second point (7.17), the third Point (7.19), the fourth point (7.11), the fifth point (6.94), in good quality. The concentration of nitrate in the second sample at the first point (0.60 mg/l), the second point (0.73 mg/l), the third point (0, 62 mg/L), the fourth point (0.40 mg/L), the fifth point (0.50 mg/l), in good condition. Concentrations of Clorida in the second sample at the first point (22 mg/L), the second point (20 mg/l), the third point (22 mg/L), the fourth point (21 mg/L), the fifth point (22 mg/l), in good quality. The results of the ansalisis which can show in either category or qualified in accordance with the value of standard quality water irrigation of Ayers and Westcot, 1985. Keywords: water quality, irrigation
RESPONS TANAMAN SAWI (Brassica juncea L.) TERHADAP PUPUK ANORGANIK dan PUPUK ORGANIK BAHAN DASAR GULMA Rahalus, Claudia Yudiarti; Tumewu, Pemmy; Tulungen, Antje Grace
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.27290

Abstract

ABSTRACT Mustard is one of the agricultural products that interests the community, so it has high commercial potential and value. The use of organic fertilizers in the soil can improve soil properties (physical, chemical and biological properties). This research uses weed as a basic material in making organic fertilizer and inorganic fertilizer. This study aims to determine the effect of inorganic fertilizers and organic fertilizers as well as the single effect of the two fertilizers on the growth and yield of mustard as well as a good dose for mustard plants. The research was carried out in the experimental garden of the Faculty of Agriculture, Sam Ratulangi University, Walian Village, Tomohon City, in August until October 2018 and the Mapanget Balitpalma Laboratory. The experiment used a completely randomized design factorial pattern. The first factor (A) = Fertilizer consists of A0 = 0 kg Phonska / ha and 0 kg Urea / ha, A1 = 200 kg Phonska / ha and 100 kg Urea / ha. The second factor (B) = Organic weed fertilizer (Paitan, Arakan, Kirinyuh) consisting of: B1 = 15 tons of weed / ha organic fertilizer, B2 = 20 tons of weed / ha organic fertilizer, B3 = 25 tons of weed organic fertilizer / ha and B4 = 30 tons of weed / ha organic fertilizer. Every 8 treatments were repeated 3 times to obtain 24 experimental pots. The results showed that there were interactions between inorganic and organic fertilizers on plant wet weight at a dose of A1B1 (200kg Phonska / ha, 100kg Urea / ha and 15 tons of weed organic fertilizer). The results showed that the application of inorganic fertilizers and organic fertilizer as a basis for weeds provided good wet weight of mustard plants. A good dose of fertilizer for mustard cultivation can use 200 kg Phonska / ha, 100kg urea / ha and 15 tons / ha organic fertilizer. Keywords: Mustard, Inorganic Fertilizer, Organic Fertilizer, Weed
STRUKTUR DAN KOMPOSISI VEGETASI POHON DI HUTAN LINDUNG GUNUNG MAHAWU DAN HUTAN LINDUNG GUNUNG MASARANG Luturyali, Elisabeth; Langi, Martina A.; Sumakud, Maria Y.M.A.
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.26108

Abstract

AbstractThis research aims to study the structure and composition of forest tree vegetation in the protected forests of Mount Mahawu and Mount Masarang. Line Method was used to study the changes in tree distribution based on the topography and elevation. Plots measuring 20 x 20 m2 are made following topographic lines (mountain slopes). The results show that the structure and composition of the dominant trees in the Mahawu Protection Forest are different from that of the Masarang Protection Forest. The dominant species in the Mahawu Protection Forest are Diospyros celebica, followed by Ficus septica and Anthocephalus chinensis; while in the Masarang Protected Forest Artocarpus sp. followed by Ficus septica and Lansium sp.Keywords: forest tree structure, forest tree composition, Mount Mahawu, Mount Masarang, protected forest
ANALISIS PEMASARAN GULA AREN DI DESA PANGU SATU KABUPATEN MINAHASA TENGGARA Wakerkwa, Herlina; Walangitan, Hengki D.; Tasirin, Johny S.
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.26103

Abstract

ABSTRACT This study aims to describe the marketing channels and marketing margins of palm sugar in Pangu Satu Village. The study was conducted in August to September 2017 using a survey approach with interviews of 11 respondents consisting of producers, collecting traders and final consumers through filling out questionnaires with open questions. Data were analyzed descriptively to describe marketing channels and marketing margins. Furthermore, the results of the study showed that there were 3 marketing channels obtained, i.e. Marketing channel type I producers - final consumers, marketing channel type II producers - merchant traders - end consumers and marketing channel type III producers - merchant traders - supermarkets - end consumers. Furthermore, analysis of type II marketing margins obtained by a continuous marketing margin of 12% to 4%, then the marketing channel III obtained a barrage of marketing margins of 20% to 35%.Key Words: Analysis of Palm Sugar Marketing Channels
RESPON PERTUMBUHAN DAN HASIL BAWANG MERAH (Allium ascalonicum L. var Lembah Palu) TERHADAP KONSENTRASI PUPUK ORGANIK CAIR Sara, Alfonsus Yudhanto; Tumbelaka, Selvie; Mamarimbing, Rinny
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.27293

Abstract

ABSTRACT Shallots (Allium ascalonicum L.) is one of the main vegetable commoditis in Indonesia and has many benefits. Shallots are included in the group of spices needed by household consumers as seasonings for cooking and raw materials for the food industry and traditional medicinal ingredients. Based on data from the National Nutrient Database shallots contain carbohydrates, sugars, fatty acids, proteins and other minerals needed by the human body (Waluyo dan Sinaga, 2015). The objective of research was to study the the growh and yield response of shallot (Allium ascalonicum L. var Lembah palu) on liquid organic fertilizer concentration. The research was conducted at field of Agriculture Faculty University of Sam Ratulangi in Manado from July to October 2019. This experiment was designed using a randomized block design with five treatments and five replications. The treatment was concentrations of liquid organic fertilizer which consist of five levels, ahat are ; Po = control, P1 = 1 ml/l water, P2 = 3 ml/l water, P3 = 5 ml/l water, and P4 = 7 ml/l water. Parameters include observations of plant height, number of leaves, number of tubers, fresh weight and day weight of tubers. The results of experiment showed that application of liquid organic fertilizer have an effect to the growth and yield of shallots. In the treatment of 5 ml / l concentration of water produced the highest average production with the number of tubers perump (11 tubers), fresh weight (57,298 grams), and dry weight (50,924 grams). Keywords: Shallot, Concentration, POC, Growth, Yield
ANALISIS KONSENTRASI TIMBAL PADA TANAMAN KUBIS (Brassica oleraceae L) DI KOTA TOMOHON Rurut, Sartika Fergina; Sumampow, D.M.F.; Rotinsulu, Wiske
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.26180

Abstract

ABSTRACT This study aims to determine the concentration of lead in cabbge plants in Tomohon city.  The results of this study are expected  to provide information to the  public about the amount of lead metal content in cabbage vegetables in Tomohon city. This research was conducted for 3 (three) months, from June to September 2018, the location of sampling in Tomohon City and then analyzed at the Baristand Laboratory. This research was conducted  in a survey using a purporsive sampling  method  by examining samples of cabbage plants that are off  the highway and cabbage that are cultivated far from the highway. Each  location was taken as many as 5 plants.  Pb samples were tested for comparison, wich were analyzed using the Atomic Absorpation Spectrophotometer.  The results of this study indicate that lead concentrations (Pb) in cabbage plantations in Tomohon are detected with concentration values that are still below the standard for heavy metal contamination or are still below the maximum limit. Keywords: Lead, Cabbage
TINGKAT KESUKAAN DAN KARAKTERISTIK KIMIA KUE SEMPRONG DARI TEPUNG UBI BANGGAI (DIOSCOREA SP) DAN TEPUNG TERIGU Satolom, Sheren L.; Koapaha, Teltje; Assa, Jan R.
COCOS Vol 2, No 7 (2019)
Publisher : COCOS

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Abstract

Abstract Banggai Regency is one of the regencies in Central Sulawesi Province that has a natural beauty and diverse natural resources, including local foodstuffs, one of them is proud cassava (Dioscorea sp.). Sweet potato (Dioscorea sp) or often called uwi is one of the many species of the genus Dioscoreaceae. Dioscoreaceae has potential as a food source because it contains a high amount of carbohydrates. Sweet potato processing is a form of flour that is more resistant to storage, easy to mix, and is more practical and easy to use for advanced processing such as making semprong cakes. The semprong cake is one of the traditional pastries and is loved by the people of Indonesia. The main ingredients for making this semprong cake are wheat flour, coconut milk, eggs, sugar and cinnamon as flavoring ingredients. This study aims to determine the most appropriate proportion of proud sweet potato flour and wheat flour, based on organoleptic testing of semprong cakes and knowing the chemical characteristics of semprong cakes. This study used a Completely Randomized Design (CRD) with Treatments A (100% Banggai Sweet Potato Flour), B (75% Banggai Sweet Potato Flour: 25% Wheat Flour), C (50% Proud Cassava Flour: 50% Wheat Flour), D (D) 25% Banggai Sweet Potato Flour: 75% Flour) and E (100% Flour). The preferred organoleptic test for the semprong cake in terms of color, taste, aroma and texture is the D treatment (75% wheat flour: 25% proud yam flour). The results of the chemical analysis of semprong cakes for water content ranged between 1.78% - 2.99%, ash content 1.37% - 2.10%, fat content 22.74% - 23.60%, protein content 7.20 % - 7.62%, and carbohydrate content 65.18 - 65.67%. Keywords : Semprong Cake, Banggai Yam Flour and Wheat Flour
Uji Organoleptik Dan Sifat Kimia Kue Semprong Campuran Tepung Ubi Jalar Ungu (Ipomoea batatas) Dan Tepung Terigu Montolalu, Olfita S; Langi, Tineke; Koapaha, Teltje
COCOS Vol 2, No 7 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.27291

Abstract

Sweet potato as a food ingredient, has a good quality in terms of nutritional content, especially carbohydrates, minerals, and vitamins. Processing purple sweet potato into flour is one way to store and preserve purple sweet potato. "Semprong" cakes traded in plastic packaging are generally made from flour with a variety of flavors and colors. Looking at the many variants of the "semprong" cake, this shows that the "semprong" cake can be combined with a variety of ingredients such as purple sweet potato flour. The aim of this research is to produce a quality semprong cake by mixing purple sweet potato flour and flour properly, based on the panelists' preference level and the nutritional characteristics of the "semprong" cake. This study uses a Completely Randomized Design (CRD) treatment A (10% purple sweet potato flour: 90% flour), B (30% purple sweet potato flour: 70% flour), C (50% purple sweet potato flour) : 50% white flour), D (70% purple sweet potato flour: 30% white flour), E (90% purple sweet potato flour: 10% white flour). The organoleptic test results of the "semprong" cake which are preferred in terms of color, taste, aroma and texture are treatment A (10g purple yam flour + 90g wheat flour). The results of the proximate content analysis of "semprong" cakes for water content ranged from 3.16% - 3.77%, ash content ranged from 1.32% - 2.09%, fat content ranged from 16.26% - 20.95%, content protein ranges from 7.06% - 8.95%, carbohydrate content ranges from 66.31% - 71.21%. Keywords : Semprong Cake, Purple Sweet Potato Flour and Wheat Flour

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