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Meldi T.M. Sinolungan
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Fakultas Pertanian Universitas Sam Ratulangi Manado
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INDONESIA
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 9 Documents
 1 
Search results for , issue "Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023" : 9 Documents clear
KARAKTERISTIK PENGERINGAN CABAI RAWIT (Capsicum Frutescens L) MENGGUNAKAN ALAT PENGERINGAN HYBRID TIPE RAK1) Samuel Arif Manongko; Lady C. Ch. E Lengkey; Daniel P. M Ludong
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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Abstract

ABSTRACT Chili plants are an agricultural commodity with great potential in Indonesia. The price of agricultural products is greatly influenced by the availability of materials in the market if the available goods are much less than the demand, the price will soar and vice versa. Therefore, to maintain chili peppers so that they can last for a long period of time it is necessary to carry out preservation in the form of drying. The temperature distribution during the drying process of cayenne pepper starts from the highest air temperature of each shelf, namely 13:00 with a temperature of 55,100C material temperature at 13:00 with a temperature of 55,400C, a collector temperature at 13:00 with a temperature of 63,800C and an ambient temperature of 360C. Air humidity greatly affects the drying process. The process of observing 46-hour air humidity, relatively low humidity occurs at 35 o'clock with the lower shelf hovering around 21.30%, the middle rack hovering around 14.30% hour to 46, the upper rack hovering around 13.40% while the environmental Rh hovering around 57.90% at 20 o'clock. The length of time for drying cayenne pepper using a rack-type hybrid dryer takes a span of 36 hours with the moisture content of cayenne pepper material on shelf 1 of 7.14%, shelf 2 of 7.14% while shelf 3 of 14.04%. The drying rate of cayenne pepper lower shelf, middle rack and upper rack is 11.61%/hour, 11.61%/hour and 2.91%/hour, respectively.
KARAKTERISTIK PENGERINGAN SAGU MENGGUNAKAN ALAT PENGERING TENAGA SURYA TIPE RAK1) Feyta Gloria Rawung; Daniel P. M. Ludong; Lady C. Ch. E. Lengkey
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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ABSTRACT This study aims to test the performance of a solar dryer for drying sago. Performance tests include: temperature distribution pattern, relative humidity of the air in the drying chamber, changes in moisture content, drying time, and drying rate. The benefits of this research are expected to use a rack-type solar dryer to shorten the drying time and also this tool can provide an overview of the use of solar energy in the process of drying sago and drying other crops. During the drying process there has been a temperature difference between the bottom shelf, middle shelf, top shelf, chimney and ambient air temperature. The average relative humidity of the ambient air on the first day is 63.75% with a maximum condition of 67% and the lowest air relative humidity condition is 60% and the average relative humidity of the air inside the device on the first day is 34.62% with a maximum condition of 37% and the lowest air relative humidity condition is 33%. The average relative humidity of the ambient air on the second day is 65.66% with a maximum condition of 69% and the lowest air relative humidity condition of 62% and the average relative humidity of the air insi de the device is 35.83% with a maximum condition of 38% and the lowest air relative humidity condition is 33%. The mathematical model of the relationship between water content and time on the bottom shelf is y = 0.6305e- 0.127x with R² = 0.972 on the middle shelf y = 0.6149e-0.118x with R² = 0.9875 on the top shelf y = 0.6434e-0.11x with R² = 0.9649. The drying rate on each shelf is different and changes occur every time because it depends on the mass of the material. The average drying rate on the lower shelf is 3.40%, the middle shelf is 3.31%, and the upper shelf is 3.21%. To reach a moisture content of 11-14% requires a total of 13 hours for 2 days. Keywoards : sago drying, rack tipe solar dryer
KARAKTERISTIK PENGERINGAN BIJI PINANG MENGGUNAKAN EXPERIMENTAL DRYER Tori Yigibalom; Lady C. CH. E. Lengkey; Ireine A. Longdong
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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Abstract

Abstract Areca nut seeds at harvest generally have a high water content, so to reduce the water content of betel nuts, namely drying or drying the betel nuts, they must be dried because if they contain high water content, the betel nuts will be easily damaged. To obtain the drying characteristics, thick sliced, medium sliced, and thin sliced areca seed layers were dried using an experimental dryer. This study aims to analyze temperature changes in the dryer during the drying process, determine the drying characteristics of areca nut meat including moisture content versus time, drying rate versus time and drying rate versus moisture content. The betel nut meat taken from the Malalayang One area is then sliced into 3 thicknesses, namely thick, medium and thin. Observations of temperature changes were carried out at the temperature of the material in each thickness, the ambient temperature, the plenum temperature and the temperature above the dried material. The temperature data is plotted and analyzed graphically. The water content was analyzed descriptively calculated based on the hourly weight loss. drying rate obtained from calculations and analyzed graphically. The results showed the temperature distribution in the plenum room, drying room, material temperature and drying room temperature. The water content decreased inversely with the change in time, the longer the drying time, the lower the water content in Areca seed, showing a pattern of decreasing water content in this experiment by showing an exponential pattern. Drying time for Areca nut seeds using this drying tool takes 9, 5, and 4 hours for thick, medium, and thin slices. The moisture content of Areca seed at the end of drying was 9.0%, 4.8% and 3.07 for thick, medium and thin slices, respectively. The drying rate of Areca seed relative to the drying time decreased the drying rate. The average drying rates for thick, medium, and thin slices were 7.92%/hour, 15.10%/hour, and 19.31%/hour, respectively. Keywords : Drying, Areca Nut, Experimental Dryer
PERANCANGAN DAN UJI KINERJA SPRINKLER SEDERHANA Esar Rante Kayangan; Ruland A. Rantung; Leo Kalesaran
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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Abstract

AbstractSprinkler irrigation is a way of watering plants by spraying water into the air andfalling on the ground to resemble rain. Sprinklers are generally applied to commodities withhigh economic value, so sprinkler prices are also quite expensive. Sprinklers currentlycirculating in the market are sold in various models, some can rotate 180 to 360 degrees withdifferent beam distances. The purpose of this research is to design and manufacture a simplesprinkler prototype and examine the performance of the sprinkler prototype that is made. Themethod used is the experimental method and the descriptive analysis method, which focuseson performance testing using the prototype sprinkler that is made. This study used severalcomponents of the equipment such as 6 sprinklers , water pumps and piping networks in aland area of 18 m × 12 m. The variables observed in the study included: water discharge,pump rotation (rpm), uniformity coefficient (CU), jet distance, use of pump fuel. The resultsof this study indicate that the application of sprinkler irrigation water uses 6 sprinklerprototypes that were made and a Korobe WR 20X water pump, with a time of 2 minutes, 6sprinklers can release 154.12 L/minute of water with an average pump speed of 3,758. 33RPM and spent as much as 45 ml/minute of fuel. The farthest distance of the sprinkler beamis 3.5 meters.Keywords: design, performance test, sprinkler, radiance, water discharge
KAJIAN PENGGUNAAN CULTIVATOR TIPE MOTOYAMA MTE 70NL UNTUK PENGOLAHAN TANAH DI LAHAN KELOMPOK TANI SYALOM DESA PINASUNGKULAN KECAMATAN MODOINDING Junita .; Ruland Rantung; Leo Kalesaran
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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Abstract

ABSTRACTThe Cultivator Motoyama MTE 70NL is an agricultural tool and machine provided by theGovernment of South Minahasa Regency for farmer groups in Modoinding District, for thedevelopment of upland projects. This cultivator is used for secondary tillage. Meanwhile, it isnecessary to know the performance of the tools distributed to farmers, so a study is needed tounderstand how the performance of the Motoyama MTE 70NL cultivator is like for tillage bothin conditions without rain and in rainy conditions. Rain conditions are used as a parameter tocompare cultivator performance with conditions without rain. In the treatment of soil conditionsafter rain, the calculation of rainfall is not carried out, even so after the rain is adjusted to the soilconditions, if the soil is too wet, it will be waited until the soil conditions can be processed. Thepurpose of this study was to analyze the performance of the Motoyama MTE 70NL typecultivator for tillage in 2 treatments, namely treatment 1 on soil conditions without rain andtreatment 2 on soil conditions after rain. The area of research land used is 5m x 30m on a flatexpanse. The variables observed in this study include: depth of tillage layer, speed, workingwidth of the tool, travel time, head land, fuel oil, and tool rpm. The results of this study indicatethat tillage using the Motoyama MTE 70NL cultivator in the first treatment resulted in a traveltime of 12.49 minutes, a head land of 49 seconds, fuel oil 213.14 ml, a depth of tillage layer of30 cm. In the two treatments, the travel time was 13.13 minutes, the head land was 50 seconds,the fuel oil was 219 ml, and the depth of the tillage layer was 30 cm. The engine RPM is 2,416.2r/min and the slow rotary gear rpm is 74.4 r/min. In treatment 1 KLT 0.074 ha/hour, KLE 0.071ha/hour, EL 95.94%. In treatment 2 KLT 0.074 ha/hour, KLE 0.069 ha/hour, EL 93.24%.Keywords: Cultivator, Soil Processing
KAJIAN PEMANFAATAN POMPA AIR BANTUAN PEMERINTAH UNTUK MENUNJANG IRIGASI PERTANIAN DI KABUPATEN Vilian F. Tumober; Leo H. Kalesaran; David P. Rumambi
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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Abstract

AbstactThis research was conducted to determine the feasibility of using pumps infulfilling water for plants so that the farming system. Support for groundwaterirrigation by using pumps for farming activities in Minahasa Regency. Based onthe description above, research will be carried out on "Studies on the use ofgovernment-assisted water pumps to support agricultural irrigation in MinahasaRegency". The results showed that the most water pump assistance was providedin 2018 in Tombariri District, and the least in 2020 in Langowan and KakasDistricts were all donated to farmer groups. The pump assistance provided by thegovernment to farmer groups is the TWP 150 type of water pump, in reality in thefield the types of water pumps provided by the government are all the same,namely the Tanikaya TWP 150 water pump type with gasoline. Interview dataobtained from farmer groups receiving water pump assistance indicated that thereare two sources of water at the pump location, namely rivers and springs. Theresults of a survey conducted showed that the pump placement locations of allthose distributed were not placed in a certain place or no one used pump houses,because their use was carried out on a rotating basis so that the pumps wereplaced according to the needs in the field. The results obtained were that the useof government-assisted water pumps was not optimized properly because most ofthe assistance was not used properly or was rarely used, with the reason thatrainfall was insufficient and there were also pumps provided by the governmentthat the pump components were not complete, there were also pumps that hadbeen provided. switch to another tool.Keywords : Water pump, irrigation, utilization
RANCANG BANGUN SISTEM KONTROL OTOMATIS SENSOR KELEMBABAN TANAH PADA MEDIA TANAM POLYBAG Deivana Kamagi; David P. Rumambi; Leo H. Kalesaran
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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AbstactSoil Moisture is the amount of water stored between the pores of the soil. Soilmoisture conditions are very dynamic, this is caused by absorption through the soilsurface of transpiration and percolation. Knowing the differences in surface soilmoisture can help optimize soil management in a field, so that productivity can bemaintained. Water obtained by the soil consists of two ways, namely naturally fromrainwater and artificial processes such as irrigation. One of the factors that affectsoil moisture is watering. Watering is something that cannot be released inmaintaining soil moisture. One effort that can be done is to provide irrigation water,namely by using an automatic system based on a microcontroller using sensors to dowatering according to water needs without having to use human power/operators.This research was conducted at the Greenhouse of the Faculty of Agriculture,University of Sam Ratulangi for one day. Data collection was carried out at intervalsof two hours with three treatments namely A 70% humidity standard, B 80% humiditystandard, C 90% humidity standard indicating that the irrigation system using theArduino Uno microcontroller can detect changes/decreases in soil moisture in theexperimental polybags, and can respond and command watering activities to restorerelative humidity conditions.Keyword : soil moisture, humidity, automatic control
RELEVANSI EVALUASI PENGELOLAAN DAERAH IRIGASI TALAWAAN MERAS PROVINSI SULAWESI UTARA Friska Anastasya Saki; Leo Kalesaran; David P. Rumambi
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

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AbstractThe objectives of this research were:: 1) to obtain information about evaluationin the Talawaan Meras Irrigation Area, 2) To evaluate the Management of IrrigationNetworks in the Talawaan Meras Irrigation Area. This research was carried outdirectly in the field and data collection was carried out using survey methods andinterviews with several selected respondents, as well as measurement/calculation ofthe characteristics of variables related to irrigation networks carried out directly onthe research object. The conclusions from this study are (1) The research location ofMS.3.Kr, which was originally 20 ha for rice fields, now the designation is no longerrice fields, but inland fisheries. (2) Measurement of water discharge in the secondarychannel at the MS.3.Kr location uses the float method, and the average dischargeobtained is 0.16 m^3/second. (3) The existing irrigation structures in the TalawaanMeras Irrigation Area are all in good condition and can function properly. (4) Theplanting season determined by the Agriculture Service is not in accordance with thefacts on the ground. (5) In the last 2 years, performance evaluation in the TalawaanMeras Irrigation Area on MS.3.Kr has not been carried out properly due to a lack ofoperational funds. Funds that should have been there have been focused on Covid-19funds. (6) There are 9 irrigation network officers in Talawaan Meras, but not all ofthem are active. At the MS.3.Kiri location, there is only one irrigation network officerwho has taken over all the tasks at that location.Keywords : evaluation, irrigation area management, Talawaan Meras
PENGARUH PROPORSI SARI JAHE MERAH DAN SARI KAYU MANIS TERHADAP TINGKAT KESUKAAN SARABBA INSTAN Sindy Claudia Tira’ Tangkeallo; Yoakhim Y. E. Oessoe; Jan R. Assa
COCOS Vol. 15 No. 2 (2023): EDISI APRIL-JUNI 2023
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v15i2.48136

Abstract

ABSTRACTThis study aims to evaluate the level of preference of panelists including color,taste and aroma of instant sarabba. The research method used was a completelyrandomized design (CRD) method with 4 treatment levels of the proportions ofred ginger extract and cinnamon extract namely A (100% : 0%), B (95% : 5%), C(90% : 10%) ) and D (85% : 15%) with 3 repetitions. The preference level testuses the hedonic scale to determine the product's sensory value in terms of color,taste and aroma. The results showed that the level of preference for color rangedfrom 3.68 - 4.00, for aroma ranged from 3.48 - 4.96 and for taste ranged from3.88 - 4.08Keywords: Sarabba, Red Ginger, Cinnamon.

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