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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
 61   62   63   64   65 
ANALISIS KUALITAS AIR IRIGASI AREAL PERSAWAHAN DI DESA RANOYAPO KECAMATAN RANOIAPO KABUPATEN MINAHASA SELATAN Eucharisty S. Rewur; J.V Bobby Polii; Selvie Tumbelaka
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 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
KAJIAN KUALITAS AIR SUNGAI NIMANGA SEBAGAI SUMBER AIR IRIGASI PERSAWAHAN DESA PASLATEN KECAMATAN TATAPAAN KABUPATEN MINAHASA SELATAN Vira Dewi Sumual; J.V Bobby Polii; Tommy B. Ogie
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 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
ANALISIS KONSENTRASI TIMBAL PADA TANAMAN KUBIS (Brassica oleraceae L) DI KOTA TOMOHON Sartika Fergina Rurut; D.M.F. Sumampow; Wiske Rotinsulu
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 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
RESPONS TANAMAN SAWI (Brassica juncea L.) TERHADAP PUPUK ANORGANIK dan PUPUK ORGANIK BAHAN DASAR GULMA Claudia Yudiarti Rahalus; Pemmy Tumewu; Antje Grace Tulungen
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 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
Uji Organoleptik Dan Sifat Kimia Kue Semprong Campuran Tepung Ubi Jalar Ungu (Ipomoea batatas) Dan Tepung Terigu Olfita S Montolalu; Tineke Langi; Teltje Koapaha
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 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
Tingkat Kesukaan Dan Karakteristik Kimia Kue Semprong Dari Tepung Ubi Banggai (Dioscorea sp) Dan Tepung Terigu Sheren L. Satolom; Teltje Koapaha; Jan R. Assa
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 2019
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v2i7.27292

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
RESPON PERTUMBUHAN DAN HASIL BAWANG MERAH (Allium ascalonicum L. var Lembah Palu) TERHADAP KONSENTRASI PUPUK ORGANIK CAIR Alfonsus Yudhanto Sara; Selvie Tumbelaka; Rinny Mamarimbing
COCOS Vol. 11 No. 1 (2019): EDISI JANUARI-MARET 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
SISTEM INFORMASI BERBASIS WEBGIS JARINGAN IRIGASI PERSAWAHAN POPONTOLEN KECAMATAN TUMPAAN KABUPATEN MINAHASA SELATAN Benny .; Robert Molenaar; Sandra E. Pakasi
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.v1i1.27294

Abstract

ABSTRACT This study aims to create an application of geospatial information on irrigation networks in Popontolen Village that supports the online monitoring and maintenance of irrigation networks based on WebGIS. This information system can be built using computers with low specifications and is supported by easy and free software (open source). This WebGIS design utilizes the framework of QGIS and the Bootstrap framework for the overall appearance of WebGIS, both of which have a programming language for displaying WebGIS. By utilizing free hosting services that are available, this WebGIS prototype can be accessed by internet users by typing the URL in the address bar https://sijaripopontolen.000webhostapp.com/index.html. And can be displayed on various devices both desktop and mobile-based. Keywords : Irrigation Networks,
ANALISIS KETERSEDIAAN LAHAN PANGAN BERKELANJUTAN DI KECAMATAN MAPANGET KOTA MANADO Hizkia Bahihi; Zetly E. Tamod; Sandra E. Pakasi
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.v1i1.27296

Abstract

ABSTRACT Food Agriculture Land is a limited amount of natural resources, the increasing need for land resources by humans has given its own pattern of land use patterns in an area. Research conducted in the study area is to identify potential land for sustainable food agriculture, using the field survey method with land unit approach and land characteristics for maize (Zea mays L.) and cassava (Manihot) namely rainfall and slope. The results showed the total area of Mapanget Subdistrict was 5414.6 hectares, based on the results of the analysis showed the potential land for corn crops suitable (S1) 3886.75 hectares with a percentage of 71.76 of the total land area in Mapanget District, Land Quite Appropriate (S2) 470.56 hectares with a percentage of 8.75 of the area of land in Mapanget District, marginal land (S3) of 35.59 hectares with a percentage of 0.62 of Mapanget District area. Cassava Plants with marginal suitable land (S3) 4392.9 hectares with a percentage of 81.13 of the area of land in Mapanget District. Keywords: Availability of Sustainable Food Land, Land Area
Pengaruh Konsentrasi Nutrisi AB mix Terhdap Pertumbuhan dan Hasil Tanaman Seledri (Apium graveolens L.) Dengan Sistem Hidroponik NFT Effect of AB mix Nutrient Concentration on Growth and Yield of Celery (Apium graveolens L.) with NFT Hydroponic Systems Silvani Wardi; Jeanne M. Paulus; 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.v1i1.27330

Abstract

ABSTRACT Celery (Apium graveolens L.) is a vegetable plant that has long been known in Indonesia. Celery plants have many benefits as the food and health. The low production of quality celery and the products are produced by in accordance with the wishes of consumers. A technology is needed that can increase the production of quality celery and in accordance with the market's desires. Hydroponics film engineering technique is one of the technologies that can be applied in narrow areas, but research on the concentration of nutrients in the hydroponic planting system of celery plants has not been done much. The purpose of this study is to determine the effect of the concentration of AB mix nutrients on the growth and yield of celery plants (Apium graveolens L.) NFT hydroponic system, and get the best concentration of AB mix nutrients on the growth and yield of celery plants. This research method uses a Completely Randomized Design (CRD) with 3 treatments and 4 replications, the factors studied are the concentration of AB mix nutrition with the treatment: (p1) 900 ppm, (p2) 1200 ppm, (p3) 1500 ppm. The results showed that there was an effect of the concentration of AB mix nutrients on the growth and yield of celery (Apium graveolens L.) and the best concentration was in the treatment (p3) 1500 ppm. Keywords: Nutrient AB mix, NFT Hydroponics, Celery (Apium graveolens L.)

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