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Articles 10 Documents
Search results for , issue "Vol 1, No 5 (2019)" : 10 Documents clear
PEMBERIAN PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN DAN HASIL PADA TANAMAN MENTIMUN (Cucumis sativus L.) Worek, Paul; Doodoh, Beatrix; Demmassabu, Sofia
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25615

Abstract

ABSTRACT This study aims to determine the effect of concentration of liquid organic fertilizer (POC) on growth and yield on cucumber plants. This research was carried out in the village of Kolongan Tetempangan, Kalawat District, North Minahasa Regency for 2 months from July to August 2018. This research was conducted using the Completely Randomized Design method, with five treatments and four replications, namely the concentration of liquid organic fertilizer: 0 ml POC /2l water (P0), 2 ml POC /2l water (P1), 4 ml POC /2l water (P2), 6 ml POC /2l water (P3) and 8 ml POC /2l water (P4). Observations were made on each plant with observational variables, namely plant height, number of leaves, flowering time, number of flowers, number of fruits, fruit length, fruit diameter and fruit weight. The results showed that the administration of liquid organic fertilizer G Tonik has not given a significant effect on the growth of cucumber plants, but it has an effect on the production of cucumber plants in this case the fruit weight. Keywords : concentration, liquid organic fertilizer (POC), growth, hybrid cucumber
UJI TEKNIS ALAT TANAM JAGUNG (Zea mays L.) TIPE TP CSM 15 DENGAN MENGGUNAKAN TRAKTOR TANGAN SEBAGAI ALAT PENARIK1) ., Idhansyah; Rantung, Ruland A; Ludong, Daniel P. M
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25027

Abstract

ABSTRACT      This study aims to test technically the corn seeds planter (Zea mays L.) type TP CSM (Corn seeding machine) 15 using the hand tractor as a pulling device on the plot of the land 30 m x 10 m. The test results of TP CSM 15 corn seeds planter in 30 m x 10 m plot of the land on 3 field tests with soil treatment got the average effective field capacity of 0,30 ha/hour, the average theoretical field efficiency of 0,47 ha/hour, and the average field efficiency of 64,20 %. The average distance between planting rows is 73,2 cm and the average distance in row planting is 28,4 cm. The number of seeds per planting hole 1 – 3 with an average of 1 seed per planting hole and an average planting depth of 5.5 cm. The percentage of seeds which grew successfully by an average of 75,74% and the percentage of seeds which unsuccessfully to grow by an average of 24,26%. Keywords : TP CSM 15, Hand Tractor, Field Efficiency.
UJI KINERJA RICE TRANSPLANTER ISEKI PC4 DI DESA KOPI KECAMATAN BINTAUNA Radjiku, Fadlan; Pangkerego, Freeke; Wenur, Frans
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25026

Abstract

ABSTRACT Iseki PC4 Rice Transplanter is a rice paddy planting tool provided by the North Bolaang Mongondow district government assistance to farmers to help with the planting process so that it does not require a lot of human labor and can save on planting costs. However, until now the existing tools have not been used because farmers cannot operate them. For this reason, it is necessary to study the operation and performance of the tools so that farmers can use these tools and provide benefits. This study aims to determine the uniformity of seedling plugging, calculate field efficiency, and determine fuel consumption from the use of Iseki PC4 Rice Transplanter tools. The results of testing using Iseki PC4 Rice Transplanter obtained an average seed plugging uniformity of 86.73%, an average field efficiency of 78.58% and fuel consumption of 8.96 liters / ha. Keywords : Iseki PC4 Rice Transplanter, filed efficiency.
KAJIAN UJI KINERJA ALAT TANAM KEDELAI IRF-01 Sulle, Isak T.; Rantung, Ruland A.; Pangkerego, Freeke
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25025

Abstract

ABSTRACT       This study aims to design and make a soybean planting tool with aspects that need to be considered such as planting conditions, number of seeds per planting hole, planting distance, seed conditions when planted, and planting efficiency. The expected outcome of this research is that it can produce soybean planting tools that can be used by farmers and academics to support government programs in increasing national soybean production.      The process of designing and manufacturing tools was carried out at the Agriculture Technology laboratory and planting or testing the performance of the tools carried out in the Unsrat village of Wailan experimental village in North Tomohon District. This research began from April 8 to May 20 2019 for the manufacture of tools and the planting process was carried out on May 22, 2019 using a planting tool that had been made with a hand tractor as a towing force and 3 weeks of observation of growing soybeans. The soybean varieties grown are Dega 1 soybean variety which is the best variety according to 2017 R & D data.      Data obtained after the process of planting and observing soybeans for 3 weeks was in the form of field efficiency data of 81.57%. with the percentage of seeds growing 61.59% and the percentage of seeds not growing 38.41%. The total percentage of seed growth is closely related to the performance of the tool because the tool still has a deficiency in the metering device that has a gap with the hopper resulting in the seeds entering the gap breaking and unable to grow when planted.  Keywords : Soybean planting tools, Spacing, Dega 1, Growing seed percentage, Field efficiency, Metering device
ANALISIS KANDUNGAN E-COLI DAN TOTAL COLIFORM KUALITAS AIR BAKU DAN AIR BERSIH PAM MANADO DALAM MENUNJANG KOTA MANADO YANG BERWAWASAN LINGKUNGAN Rompas, Tia Milka; Rotinsulu, Wiske Ch.; Polii, J.V. Bobby
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25742

Abstract

ABSTRACT This research was conducted for 3 months, from March to May 2017. The water sampling location was selected at two points. The first location was in TONDANO River (the river around PT Air Manado). The second was clean water at PT Air Manado. The water sampling was collected with three replications (sampling time) and analysed at in Manado Baristan laboratory. This research aimed to know the content of E-Coli and Total Coliform in a standard water and a clean water of PT. Air Manado. The results showed that the content of E-Coli and Total Coliform in Tondano River were lower the standard quality of 5000 (number/100 ml); For the first sampling, intake E-Coli 13/100 ml, Total Coliform 14/100ml; the second sampling, E-Coli 1.8/100ml, Total Coliform 340/ 100ml and the third sampling, E-Coli 0/100ml, Total Coliform 240/100ml. All water sample has met the water quality standard according to Government Decree Number 82, 2001 about water quality treatment and water pollution control. As for the clean water samples, the results showed that the first and the second samples have not met the quality standard for clean water as they have E-Coli and Total Coliform (First sampling, E-Coli 4/100ml and Total Coliform the first sample 2 /100ml; The second sampling, E-Coli 0/100 ml and are Total Coliform4/100ml. Keyword : Clean Water, E-Coli, Total Coliform.
UJI TIGA JENIS PUPUK KANDANG TERHADAP PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium cepa, L.) Pajow, Ester N.; Purbopuspito, Joko; Sinolungan, Meldi T.M.
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25579

Abstract

Abstract Shallots are an important vegetable commodity in North Sulawesi with a high market demand.  This research tested the type of manures for the growth and production of shallot plants using a field experiment at the BPTP SULUT Experimental Field and soil testing at the Soil Fertility Laboratory, Faculty of Agriculture, UNSRAT.  The field experiment used four types of manure treatments in six replications, so that 24 experimental beds were obtained.  From this study, the best type of manure for plant growth, increasing the number of leaves and the number of tillers, and for the production of fresh shallots is obtained by dose of a 40 tons of chicken manure /ha or a 40 tons of cow manure /ha in contrast to a 40 tons of pig manure /ha or a control without manure, which is gained from soil fertility conditions with 1.62-1.70% C-organic; soil pH 6.60-6.64; 0,137-0,148% soil N-total land; 18.28-21.05 ppm soil P-available; and 20.44-23.54 ppm soil Kavailable.  Keywords :  chicken manure, cow manure, shallots.
ANALISIS KOEFISIEN ALIRAN PERMUKAAN PADA TIGA TIPE PENGGUNAAN LAHAN di TANAH ANDISOL Ramehiang, Ikasapta; Rombang, Johan
COCOS Vol 1, No 5 (2019)
Publisher : COCOS

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Abstract

ABSTRACT Current changes in land use caused by population growth and development in the development sector are increasing. This has a significant impact on changes in surface flow values, causing the flow coefficient to increase resulting in flooding. One of the important concepts in efforts to control flooding is the surface flow coefficient or commonly represented by C. This number of surface flow coefficients is one indicator to determine whether a watershed has been disturbed (physically). This study aims to calculate the Surface Flow Coefficient (C) in the type of forest land use, shrub land and open land. The method in this study used a randomized block design as a data collection method which was then analyzed using analysis of variants. From the results of measurements carried out in the field, the coefficient of surface runoff of forest land and shrub land is significantly different from open land where in forest land is 0.0019 and shrub land has a value of 0.0013, while open land is 0.0036. From the results of measurements carried out in the field, the infiltration rate in a row is shrub land of 210 mm / hour, forest land of 99 mm / hour and open land of 69.6 mm / hour. Forest land has a smaller infiltration rate compared to shrub land because forest land in the study area is artificial forest planted with vegetation, strata and has a different root system of natural forest. Keywords: surface flow coefficient, infiltration, surface flow
STRATEGI PEMASARAN HHBK GULA AREN DI DEASA LUMPIAS WILAYAH KPHL MINAHASA UTARA Fatemyo, Marthinus; Walangitan, Hengk D.; Nurmawan, Wawan
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25638

Abstract

Abstract This study aims to describe and analyze the marketing strategy of palm sugar in Lumpias Village. The study was conducted in September 2017 using a survey approach by interviewing 6 producers of respondents through questionnaires, with open questions. The data obtained were analyzed using the SWOT method. Based on the results of the SWOT analysis obtained hold and maintain strategy means that the marketing of palm sugar in Lumpias Village has the strength and opportunity to continue to be maintained and maintained through market penetration and product development. Furthermore, in the development of marketing with the following strategies : (1) the strategy of building and increasing business partnership and expanding the marketing network by utilizing the development of information technology (2) the strategy of promoting through the internet (3) the strategy of maintaining and improving product quality Key words: HHBK Marketing Strategy Palm Sugar in Deasa Lumpias North Minahasa KPHL Region.
ANALISIS PERBEDAAN JENIS BAHAN DAN MASSA PENCETAKAN BRIKET TERHADAP KARAKTERISTIK PEMBAKARAN BRIKET PADA KOMPOR BIOMASSA Marchel, Wangko Iwan; Freeke, Pangkerego; Dedie, Tooy
COCOS Vol 1, No 5 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i5.25028

Abstract

ABSTRACT This research aims to analyze the differences from the type of material and mass of briquette molding toward the characteristics of burning briquette. Burning characteristics include temperature of burning, burning time, boiling time of water, and thermal efficiency resulting from. The method used in this research is descriptive experimental method with coconut shell and corncob as raw material for briquettes. This study uses the difference in mass of material when molding briquettes. The mass of material at the time of moulding is divided into 50 g and 40 g. The results indicate the quality of briquettes as follows, moisture content of 7.22%-8.31%, density of 0.52 g/cm3 – 0.78 g/cm3, a heat value of 6,259.81 cal/g – 6,906.56 cal/g. Briquettes A (coconut shell with a mass printing of 50 g) produces the lowest moisture content 7.22%, the highest density 0.78 g/cm3, as well as the greatest heating value i.e. 6,906.56 cal/g. The results of the burning indicate optimum fire temperature reached 934.8 oC from briquettes B (coconut shell with a mass printing of 40 g). Average the time of boiling 2 litres of water ranged from 22.16 minutes – 27 minutes with a total of boil water between 12-14 liters, the burning time ranging between 167 minutes/kg – 220 minutes/kg briquettes, as well as thermal efficiency achieved 14.03% – 15.15%.  Keywords: Briquette, burning characteristics, thermal efficiency.
SERANGAN HAMA PENGGEREK BATANG Ostrinia furnacalis Guenee (LEPIDOPTERA: PYRALIDAE) PADA VARIETAS JAGUNG DI KABUPATEN MINAHASA SELATAN Pangumpia, Inday; Pelealu, Jantje; Kaligis, James B.
COCOS Vol 1, No 5 (2019)
Publisher : COCOS

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Abstract

Abstract The aim of this study was to determine the difference between O. furnacalis maize borer infestation on Pioneer 27 and Bisi 16 varieties in Kapitu, Amurang Barat, Tawaang, Tenga, Tenga, South Minahasa. The time for conducting the research is five months from February to June 2018. This study uses a survey research method with direct observation in farmers' plantations. Each farm is determined by one ha of corn plantations and then divided by five observation subplots that are spread diagonally and 40 subplots are taken.  Based on the results of the study, the percentage of O. furnacalis attacks on maize plants in Kapitu and Tawaang villages, South Minahasa regency, showed that based on varieties, the highest attack on maize variety was 27. P40, 0.40 percent, and Bisi 16 was only 0.23 percent. Percentage of attacks based on plant age shows that the corn bisi variety 16 at the age of plants 37 days after planting (HST) of 0.10%, 44 DAP of 0.25%, 51 DAP of 0.15%, 58 DAP of 0.27 % and 65 days after 0.39%. Furthermore, the percentage of attack of maize pioneer variety 27, namely 37 dap for 0.17%, 44 dap for 0.40%, 51 dap for 0.15%, 58 dap for 0.54% and 65 dap for 0.77%. The difference in O. furnacalis attack on varieties of corn plants, allegedly caused by eating and physical plants.

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