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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Lady C. Ch. E. Lengkey
Sam Ratulangi University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Materials Science & Nanotechnology Physics

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Analisis Kehilangan Hasil Panen Padi Menggunakan Combine Harvester Kubota Dc 70 Plus Di Desa Tuyat Kecamatan Lolak Kabupaten Bolaang Mongondow Aneke Sikome; Daniel P. Ludong; Lady C. Ch. E. Lengkey
Jurnal Teknologi Pertanian (Agricultural Technology Journal) Vol. 14 No. 1 (2023): Jurnal Teknologi Pertanian (Agricultural Technology Journal)
Publisher : Jurnal Teknologi Pertanian (Agricultural Technology Journal)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35791/jteta.v14i1.51068

Abstract

This study aims to examine the loss of rice yields using the Combine Harvester kubota DC 70 plus machine. Yield losses in question are scattered during harvesting, left in the machine, not harvested and left behind during threshing. This research was carried out in September – October 2022 in Tuyat Village, Lolak District, Bolaang Mongondow Regency, North Sulawesi Province.  Harvesting is carried out using a Kubota DC 70 plus Combine Harvester machine on Mekongga variety rice plants that are ready to harvest. The research was carried out using experimental methods. Data collection after the rice is harvested. The experiment was carried out 3 repetitions. The results showed that the average loss scattered during harvesting was (4.7 ± 1.26)%, the average loss was not harvested (0.018 ± 0.006)%, the average loss left behind on the machine was (0.18 ± 0.040)%, the average loss during threshing (0.010±0.0004)%. The total yield loss during the rice harvesting process on a 40m x 15 m land area using the Kubota DC 70 plus Combine Harvester was (4.9±1.31)%. Keywords: Combine Harvester; Loss, Paddy.
Design and Technical Evaluation of Evaporative Cooling for Prolonging Fresh Potato Shelf Life in Tropical Climates Ireine Adriana Longdong; Dedie Tooy; Juventus Yoel Mochtar; Lady C. Ch. E. Lengkey; Herry F. Pinatik; Denny Saroinsong
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.12163

Abstract

Postharvest damage to potatoes can occur due to plant physiological disorders, such as evaporation (transpiration), respiration (respiration), tubers sprouting, and tubers becoming too ripe. This research aims to design, manufacture, and test an evaporative cooling device using a direct spray method from a fan into a room or box by conducting technical tests about temperature, humidity (RH), signs of potato damage, weight loss, and water content. The test was carried out using an evaporative cooling device (evaporative cooler) for 30 days.    This research tested the effectiveness of the evaporative cooling system compared to room outside storage on potato quality for 30 days observationally. The results show that evaporative cooling equipment can prolong the shelf life of fresh potatoes in tropical areas according to physical parameters such as signs of damage to potatoes during storage, water content, and percentage of weight loss. For future development, increasing the fan and cooling pad to medium size is necessary for more effective equipment. An evaporative cooler is a cost-efficient and sustainable method for preserving agricultural produce in rural areas far from urban centers.
Co-Authors Aneke Sikome Daniel P. Ludong Dedie Tooy Denny Saroinsong Frans Wenur Herry F. Pinatik Ireine Adriana Longdong Juventus Yoel Mochtar Trivano Solar