Ludong, Daniel P. M.
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Karakteristik Pengeringan Lapisan Tipis Irisan Singkong (Manihot Esculenta) Pada Beberapa Ketebalan Menggunakan Experimental Dryer Lumanu, Ramly; Lengkey, Lady C. Ch. E.; Ludong, Daniel P. M.
COCOS Vol 1, No 2 (2020)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v1i2.27687

Abstract

Abstract Drying a thin layer of cassava slices to the thickness of the slices is done using the Experimental Dryer. Drying is carried out at a temperature of 60 ̊C, observations are carried out every 15 minutes for the first 2 hours then every 1 hour until reaching equilibrium water content. The purpose of this study was to determine the drying characteristics of cassava slices and to determine the equation model between water content to time, drying rate to time, drying rate to water content, and analyze temperature changes in each sample in the dryer during the drying process. This research was conducted at the Post Harvest Laboratory of Agricultural Engineering, Faculty of Agriculture, Sam Ratulangi University, Manado. The research method uses experimental methods, observations and calculations are plotted in a graph and analyzed descriptively. Drying is done until the equilibrium water content. The tools used in the drying process are thermocouples, ovens, desiccators, analytical scale, digital scale. The material used cassava slices with 2 thicknesses are 3 and 6 mm. The results showed that during the drying process there were differences in temperature at 2 thicknesses. Mathematical model of the relationship of water content to time at a thickness of 3 mm is found in sample 2 with a moisture content reaching 1.6% WB after drying process for 7-8 hours with an exponential equation y = 28,602e-0,44x and R² = 0,8256 while at a thickness of 6 mm in sample 1 it reached 2% WB after drying for 11 - 12 hours with the exponential equation y = 41,161e-0.327x and R² = 0.8957. The drying rate model with at 3 mm thickness is with y = 52.336e-0.729x and R2 = 0.9613 and at 6 mm thickness the drying rate model with time is y = 31.845e-0.677x and R2 = 0.9826 while the model drying rate of water content at a thickness of 6 mm with y = 0.3119e0.0992x and R² = 0.7597. Keywords: Cassava Bulbs, Characteristics, Drying and thin film models.
PENERAPAN IRIGASI HIDROPONIK SISTEM AKAR TELANJANG (Bare Root System) PADA TANAMAN KANGKUNG (Ipomea Aquatic forsk). Tulung, Ronaldo; Rumambi, David P.; Ludong, Daniel P. M.
EUGENIA Vol 25, No 3 (2019)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/eug.25.3.2019.31404

Abstract

This study aimed to test the application of the Deep Flow Technique (DFT 4cm dan DFT 2cm)  and Nutrient Film Tecnique (NFT) bare root system hydroponic system on water spinach plants by calculating plan water requirements and measuring vegetative growth of water spinach plants with thickness / water level different. The results showed that the CU (Coefficient Uniformity) value was 95% in that DFT 4cm, 111,55ml of water as used, plant height and number of leaves were relatively that same as t6he other treatments with a plant mass weight of 181.28gr, with a stem meter of 12.92cm. DFT 2cm required 90.17ml of water with a plant mass weight of 160.33gr. NFT needs water as much as 106.57 ml with a plant mass weght of 153.28gr.
KAJIAN IRIGASI MIKRO PADA SISTEM HIDROPONIK PADI (ORIZA SATIVA L.) VARIETAS SERAYU DALAM RUMAH TANAMAN Moningka, Christian N. G.; Ludong, Daniel P. M.; Rumambi, David P.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 1 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.11.1.2020.29981

Abstract

ABSTRACTThe purpose of this study was to examine the effect of the thickness of irrigation water flow in the Deep Flow Technique (DFT) hydroponic system on the amount of plant water requirement (or evapotranspiration) and the Water Use Efficiency (WUE) in rice cv. Serayu at the vegetative phase. This research was carried out in a tropical greenhouse roofed with polyethylene (PE) plastic film. The treatments in this study were three kinds of thickness of  micro irrigation in the DFT hydroponic system, i.e. 2, 4 and 6 cm. The results showed that water requirement for each planting hole in rice plants during the vegetative phase (60 days) were 14.3650, 12.7025, and 11.3108 with biomass of 62.4576, 58.2874 and 52.6370 g, respectively for 6, 4 and 2 cm. The water use efficiency in 2, 4, 6-cm-DFT-system were 2.3268,  2.293 and 2.1740 g/L, respectively. Keywords: Hidroponics, Deep Flow Technique, Evapotranspiration, Water Use Efficiency
REKAYASA MESIN PENGUPAS KULIT BUAH KOPI JENIS ROBUSTA MODEL TEP-JLL 2015 DI KABUPATEN TANA TORAJA Langi, Jois Limbong; Ludong, Daniel P. M.; Lengkey, Lady C. Ch. E.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 1 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.11.1.2020.29983

Abstract

ABSTRACT The objective of this research was to design a pulper machine model TEP-JLL 2015 for fresh coffee robusta used in rural areas of Tana Toraja district. The machine was designed based on the analysis of physical characteristics of Robusta Tana Toraja coffee and literature study. The analysis result of physical characteristics showed the average length, thickness width was 12.494 mm, 12.802 mm, 10.687 mm, respectively, and the bulk density was 1,115 kg/m3. The theoretical hopper capacity of this machine was 3.7687 kg. Assuming the cylinder speed was 111.594 rpm with an effective distance setting system or flawed setting of 1.2 cm, the theoretical capacity of this pulper machine was 380.62 kg/hour. Keywords: fresh Robusta coffee fruit, pulper machine
RANCANG BANGUN DAN UJI TEKNIS ALAT TANAM BENIH JAGUNG (Zea Mays L.) TIPE TP CSM 16 DENGAN TENAGA PENARIK TRAKTOR TANGAN Pangalila, Nova D. E.; Rantung, Ruland A.; Ludong, Daniel P. M.
Jurnal Teknologi Pertanian (Agricultural Technology Journal Vol 11, No 2 (2020): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Fakultas Pertanian, Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.v11i2.37788

Abstract

Abstract This study aims to design a CSM 16 TP type corn seeds planter by adopting the TP CSM 15 type corn seeds planter and a corn seeds planter integrated with the Kubota M9560 four-wheeled tractor, and testing technically the corn seeds planter covering effective field capacity, theoretical field capacity, field efficiency and planting effectiveness. The results of the study were 1 unit of maize seed planting tool TP CSM 16 type consisting of 2 static planting units, and technical testing of corn seeds planter in 10 m  5 m plot of land with 3 repetitions obtained the results is the average effective field capacity of 0,080 ha/hour, the average theoretical field capacity of 0,110 ha/hour and the average field efficiency of 72,54%. The results of field observations on the corn seeds planter is the average distance in row planting is 28,57 cm, the average distance between planting rows is 75,37 cm, the number of seeds per planting hole an average of 1 seed, the average planting depth of 4,23 cm, the percentage of seeds growing an average of 80.42% and the percentage of seeds not growing an average of 19.58%. Key words: Seeds planter, TP CSM 16, Hand Tractor.
KAJIAN PENGGUNAAN PIPA PVC BENTUK BULAT DAN TALANG TRAPESIUM SEBAGAI INSTALASI IRIGASI DALAM USAHA HIDROPONIK TANAMAN SELADA (Lactuca sativa L.) Dalanggo, Ahmad; Kalesaran, Leo H.; Ludong, Daniel P. M.
COCOS Vol 8, No 8 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.38280

Abstract

Abstract This study aims to examine evapotranspiration in round pipes and trapezoidal gutters and their relationship to plant growth, assess the effect of microclimate on plant growth and production yields, calculate air efficiency, and analyze profit and loss using both types of pipes. This study was designed as an experimental study using 3 trapezoidal gutters and round pipes with a length of 4 m which were integrated into a water irrigation flow system using a pump, and each pipe used 20 planting holes. The results showed an average trapezoidal gutter evapotranspiration of 2334 , 67 ml of planting and in round pipes the average was 1955.50 ml of planting, the temperature in the pipe was around 29°C, the air temperature was around 30°C and the humidity was around 80%. plants in trapezoidal gutters had an average height of 17.49 cm, number of leaves 28, plant diameter 26.39 cm, leaf width 10.73 cm, leaf length 17.32 cm and total plant weight of 100.08 g, and plants in pipes spherical has an average height of 14.78 cm, number of leaves 24.58 strands, plant diameter 22.99 cm, leaf width 9.63 cm, leaf length 14.27 cm and total plant weight 65.52 g. liter of water in trapezoidal gutters produces 42.87 g of plant biomass, and every liter of water in the pipe produces 33.51 g of plant biomass, then the cultivation of circular lettuce plants in an area of 400 m2 using trapezoidal gutters gives sales results ranging from Rp. 116,937,216 every 1 year and lettuce plants on round pipes provide income of around Rp. 75,769,344 every 1 year.. Key words: Hydroponics, Hydroponics Irrigation, Hydrponics Lettuce
ANALISIS PENAMPILAN KERJA ALAT PENYERAT PISANG ABACA (Musa textilis Nee1) Unsong, Chevin A.T; Tooy, Dedie; Ludong, Daniel P. M.
COCOS Vol 8, No 8 (2021)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/cocos.v8i8.37351

Abstract

ABSTRACT The purpose of this study was to analyze the work of the abaca banana fiber which consists of the fiber capacity, the fiber efficiency and the time required for the fiber. This research was conducted to provide specific information to abaca banana farmers and the community about the work process and the use of abaca banana fiber so that in the future they can develop existing tools. Abaca fiber is very useful for future product development because of the superiority of its fiber. To develop abaca fiber, one of them must be supported by the development of fiber equipment that is capable of fiber with high capacity and good fiber yield. This fiber tool uses diesel motor power as the engine driving YANMAR TF105 working power 9.5 DK/2400 rpm maximum 10.5DK/2400rpm, The working process of this abaca banana fiber is initially the banana stem midrib is cut and split according to the size of the abaca banana stem , the average length of banana stems in Essang is 2.5 m to 3 m. then the frond that had been split was inserted between the retaining plate and the cylinder of the fiber knife, here the fibering process took place, the frond that had become fiber was then hung in the drying area. In one hour the fiber is capable of absorbing 18 kg/hour so that in one day it can absorb 144 kg, the yield is 5.2380% so that in one day the abaca banana fiber can produce 27.49 kg of dry fiber.