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Marpaung, David Septian Sumanto
Biosystems Engineering, Institut Teknologi Sumatera (ITERA)
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Mechanical Engineering

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Strategi Peningkatan Produktivitas Padi melalui Sistem Salibu Marpaung, David Septian Sumanto
Jurnal Sumberdaya Lahan Vol 16, No 1 (2022): Akan Terbit Resmi Pada Bulan Juli
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v16n1.2022.1-7

Abstract

Beras merupakan makanan utama bagi masyarakat Indonesia. Kebutuhan akan beras, melalui tanaman padi meningkat seiring dengan peningkatan jumlah penduduk di Indonesia. Namun, ketersediaan lahan untuk bercocok tanam, terus berkurang dari tahun ke tahun. Sistem salibu merupakan salah satu metode yang dapat diterapkan untuk peningkatan produktivitas padi yang efektif dan ramah lingkungan. Berbagai macam strategi untuk mendukung sistem salibu dalam peningkatan nilai produksi tanaman padi telah diterapkan, diantaranya perlakuan waktu pemotongan tunggul, perlakuan tinggi pemotongan tunggul, manajemen air, penggunaan pupuk, dan penggunaan varietas unggul. Melalui tulisan  ini diharapkan  dapat  memberikan  informasi  tentang  sistem salibu padi  dan strategi peningkatan produktivitasnya.
PHYSICAL CHANGES OF ANDALIMAN (ZANTHOXYLUM ACANTHOPODIUM DC.) IN PACKAGING DURING LOW-TEMPERATURE STORAGE David Septian Sumanto Marpaung; Raizummi Fil'aini; Amna Citra Fahrani; Dwi Cahyani; Ayu Oshin Yap Sinaga
AGROINTEK Vol 13, No 2 (2019)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.378 KB) | DOI: 10.21107/agrointek.v13i2.5543

Abstract

Zanthoxylum acanthopodium, locally known as Andaliman, is exotic spices which grown in North Sumatera. Several investigation shown that the special taste and aroma comes from pericarp of Andaliman. However, the pericarp of Andaliman is easily degraded. The proper postharvest handling of Andaliman is necessary to preserve fresh Andaliman for long time. Previously, Andaliman has been preserved in packaging under room temperature storage. Further investigation of Andaliman preservation in packaging under low temperature storage would help reduces the postharvest losses. In this study, the physical changes of Andaliman in various packaging under low-temperature storage were observed. The results shown that within 2 days, the pericarp of Andaliman in paper packaging was shrunk, similarly found in control without packaging. Meanwhile, the pericarp of Andaliman in aluminum foil and PP plastic were found normal in day 3. This result indicated that in low-temperature, Andaliman in Aluminum foil was recommended for best postharvest handling.
MORTALITY RATE OF SITOPHILUS ZEAMAIS IN LOW TEMPERATURE STORAGE David Septian Sumanto Marpaung
AGROINTEK Vol 15, No 4 (2021)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v15i4.10718

Abstract

Maize is one of important comodities contributed as food consumption and other bioproducts to the world. As high demand of maize in global must be followed its avalaibility in markets. Decline the post-harvest losses along maize distribution will not only keep the avalaibility in markets, but also solve the food security. One of post-harvest losses causes is pest, especially in maize storage. The temperature treatment to control S.zeamais, a major insect found in maize storage, becomes potential action in order to reduces the post-harvest losses. The aim of this study was to investigate the S.zeamais mortality rate and physical changes of maize kernel under low temperature condition. The S.zeamais was cultured within 4 months before used for experiments. The 2 different low temperature conditions and 1 control treatment were used in this study. The results showed that the temperature of maize kernel was changed, indicated the movement of maize from room temperature to low temperature storage is occurred. Furthermore, the low temperature treatments, the maize moisture content was slightly changed compared to the control treatment. In addition, there is no chilling injury issue to maize kernel. However, the unknown mechanism of S.zeamais protection to the low temperature was found in the Low Temperature I treatment through the finding of hole grain. In the mortality rate, the highest mortality rate was found at Low Temperature II treatment (95.30 ±11.54%). These findings suggests that low temperature treatment could be the action for maize pest management, especially in the storage.
Effect of Land Clearing Activity on Environmental and Arthropods Diversity (Case Study: Jati Agung, Lampung) David Septian Sumanto Marpaung; Nova Anika; Yazid Bindar
Jurnal Ilmu Lingkungan Vol 19, No 2 (2021): Agustus 2021
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.19.2.444-449

Abstract

Agricultural activity relies on soil as their growth media. Besides agricultural activity, other living species also needs soil as their ecosystem. However, the biodiversity and environmental factor are often neglected in agricultural activity. Therefore, the investigation of environmental and biodiversity changes is important. In this study, the environmental parameter and biodiversity changes was investigated in area after land clearing activity. The pH was increased from in 3 times measurement. Besides, the soil temperature and air temperature was also increased in 3 times measurement between pre- and post-treatment. The soil temperature ranges from 26.2 oC to 33.2 oC in pre-treatment and 27.6 oC to 31.8 oC in post-treatment. The air temperature was observed ranges from 27.96 oC to 34.3 oC in pre-treatment and 28.36 oC to 34.56 oC in post-treatment. Measurement of RH was resulted ranges from 61.2% to 75.4% in pre-treatment and 61.4% to 74.8% in pre-treatment. The land is proposed become paddy field for next step land processing. As result, the diversity index was decreased in pre- and post-treatment. The Shannon diversity index was decreased from 0.81 to 0.72. Similarly, the Simpson diversity index was also decreased from 1.94 to 1.77. Meanwhile, the evenness index was increased from 0.58 to 0.65. These results suggested for farmer to process the land as soon as possible after land clearing process, if they want to form paddy field from pasture land.AbstrakKegiatan pertanian bergantung pada tanah sebagai media tumbuh suatu tanaman. Selain kegiatan pertanian, organisme hidup lain juga bergantung terhadap tanah sebagai ekosistem. Namun, seringkali biodiversitas dan faktor lingkungan diabaikan dalam kegiatan pertanian. Oleh karenanya, indentifikasi perubahan lingkungan dan biodiversitas sanget perlu dilakukan. Dalam penelitian ini, perubahan parameter lingkungan dan biodiversitas diamati sebelum dan sesudah aktivitas land clearing. Hasil pengamatan menunjukkan, pH tanah, suhu tanah dan suhu lingkungan meningkat dalam 3 kali pengukuran dari sebelum ke sesudah aktivitas land clearing. Suhu tanah berkisar 26.2 oC-33.2 oC pada sebelum kegiatan land clearing dan 27.6 oC-31.8 oC setelah aktivitas land clearing. Suhu lingkungan ditemukan berkisar  27.96 oC-34.3 oC pada kegiatan sebelum land clearing dan 28.36 oC-34.56 oC setelah kegiatan land clearing. Hasil pengukuran RH lingkungan ditemukan berkisar 61.2%-75.4% pada kegiatan sebelum land clearing dan 61.4%-74.8% setelah kegiatan land clearing. Sementara itu, index diversitas ditemukan menurun setelah aktivitas land clearing. Nilai Shannon diversity index ditemukan menurun setelah aktivitas land clearing dari 0.81-0.72. Pola serupa ditemukan pada nilai Simpson diversity index, dimana terjadi penurunan dari 1.94 menjadi 1.77. Nilai evenness index meningkat dari 0.58 menjadi 0.65. Berdasarkan hasil tersebut dapat disarankan ke petani untuk segera mengolah lahan tersebut setelah kegiatan land clearing untuk menghindari terjadinya pertumbuhan kembali vegetasi, serta perubahan parameter lingkungan dan biodiversitas.
Identifikasi Kualitas Benih Kacang Tanah (Arachis Hypogaea L.) Varietas Lokal Tuban Menggunakan Uji Tetrazolium dan Uji Daya Berkecambah Ayu Oshin Yap Sinaga; Mimi Lindayanti; Sintia Li Aunila; David Septian Sumanto Marpaung
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol 9, No 3 (2021)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2021.009.03.02

Abstract

Kacang tanah (Arachis hypogea L.) merupakan komoditas kacang-kacangan utama di Indonesia karena memiliki sumber protein nabati dan nilai gizi yang tinggi. Namun pada tahun 2018 produksi kacang tanah mengalami penurunan. Salah satu faktor yang menghambat upaya peningkatan produksi kacang tanah yaitu minimnya benih yang bermutu tinggi yang dapat dipengaruhi oleh lama penyimpanan benih. Salah satu upaya yang dapat dilakukan untuk mengurangi rendahnya mutu suatu benih yaitu melakukan pengujian dini mutu benih. Penelitian ini bertujuan untuk mengetahui viabilitas benih kacang tanah varietas tuban dengan menggunakan uji tetrazolium dan daya berkecambah pada penyimpanan benih yang lama. Pengujian ini dilakukan dengan 2 metode yaitu uji tetrazolium dan uji daya berkecambah. Pengambilan sampel dilakukan dengan metode purposive sampling dengan 4 kali ulangan. Hasil penelitian menunjukkan bahwa terjadi penurunan viabilitas benih kacang tanah yang disimpan selama 1 tahun, dari 86% turun mencapai 34%, dengan kondisi kadar air meningkat dari 6.8% menjadi 7.4%. Selain itu, hasil uji daya berkecambah benih kacang tanah ditemukan sebanyak 34% normal, 45% kecambah abnormal dan 21% kecambah mati. Berdasarkan uji tetrazolium, ditemukan bahwa benih yang viabel sebesar 79% dan benih non viabel sebesar 21%. Hasil ini menunjukkan bahwa perlu adanya upaya peningkatan viabilitas dan daya berkecambah benih kacang tanah varietas tuban. Identifikasi awal kualitas benih merupakan hal yang penting bagi para pelaku usaha tani agar terhindar dari kegagalan panen.
PHYSICOCHEMICAL CHANGES OF DWARF BANANA (Musa acuminata) DURING VACUUM PACKAGING STORAGE David Septian Sumanto Marpaung; Dwi Cahyani; Ni Wayan Arya Utari; Anggia Indriyani; Resa Apriliani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 2 (2021): Juni
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i2.193-199

Abstract

Banana is tropical fruit contain health nutrition and fiber. Dwarf banana is one of type banana that well growth in Indonesia, particularly in Lampung Province. However, its economic value become exported commodities is limited by its short shelf life. In this study, the physicochemical changes were observed under vacuum packaging storage, in order to know the potency of vacuum packaging to prolong the shelf life of dwarf banana. The results showed that the vacuum packaging could reduce weight loss compare to other treatments. The maintenance of green color by vacuum packaging was also showed positive result. Furthermore, the dwarf banana under vacuum packaging storage was also showed lowest TSS, in other words, the dwarf maturity could be delayed. These results suggested the vacuum packaging could be used as potential packaging for dwarf banana Keywords: dwarf banana, vacuum packaging, postharvest, physicochemical properties
Pengaruh Pemberian Pupuk Organik Urin Kelinci Terhadap Pertumbuhan Tanaman Kangkung Darat (Ipomoea Reptans): The Effect of Rabbit Urine Organic Fertilizer on The Growth of Land Kale Plants (Ipomoea Reptans) Via Rahmatul Ummah; David Septian Sumanto Marpaung
Jurnal Agroekoteknologi dan Agribisnis Vol. 5 No. 2 (2021): Jurnal Agroekoteknologi dan Agribisnis
Publisher : Politeknik Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51852/jaa.v5i2.484

Abstract

The use of organic fertilizer is one solution to solve the problem of lack of nutrients in the soil, taking into account the sustainability aspect. Rabbit droppings are obtained from rabbit breeders at P4S Agro Cendekia Bangunrejo. The study was conducted in July 2021 at P4S Agro Cendekia Bangunrejo. Liquid organic fertilizer is made by two different methods namely Y1 (a mixture of 10 liters of rabbit urine, 150 grams of brown sugar and 0.2 liters of EM3) with a fermentation time of 7 days and a pH of 7.5 and Y2 (a mixture of 10 liters of rabbit urine, 150 grams of brown sugar, 0.2 liters of EM3 and bamboo root) with a fermentation time of 6 days and a pH of 7.3. There are three treatments, namely P1 as an experimental control (without the provision of liquid organic fertilizer), P2 is given liquid organic fertilizer Y1, P3 is given liquid organic fertilizer Y2. Each treatment was randomly taken as many as 5 samples to be used as the object of the study. The parameters of the growth of kale plants analyzed after 10 hst (days after planting) are plant height, number of leaves, length of roots and number of roots. From the research data obtained, the highest average plant height is in the P2 treatment with a value of 8.12 cm. The average number of leaves is the largest in the P2 treatment as many as 5 stems. The average length of the highest root is in P3 at 8.46 cm. The average number of roots obtained in the P2 treatment is 29 branches. Liquid organic fertilizer of rabbit urine affects the growth of kale plants. Keywords: Growth, growth of rabbit urine, rabbit urine
PREDICTING THE CLEAVAGE SITES OF MULTIPLE PROTEASES FAMILIES ON RICE ALPHA AMYLASE ISOZYME 3D SEQUENCE Ayu Oshin Yap Sinaga; David Septian Sumanto Marpaung
Agro Bali : Agricultural Journal Vol 3, No 1 (2020)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (210.334 KB)

Abstract

Proteases is a proteolytic enzyme that often determined the crucial process in degradation pathway occurred in all of organisms. Prediction of novel protease is important action to design the protease inhibitor.  In the secretion of rice αAmy3 protein in outside cells will be followed by secretion of recombinant protein target and proteolytic enzymes together, which means potentially also degraded the recombinant protein target In this study, the proteases was detected in rice αAMY 3D protein sequences. Our study resulted the 3 major proteases appeared in rice αAMY 3D protein sequences, they were cysteine proteases, serine proteases and metalloproteases. Based on the literature, such proteases also appeared in rice suspension cells. Design the inhibitor for such proteases will be suggested for reduction of proteases level. DOI: 10.37637/ab.v3i1.449
Uji Tetrazolium dan Daya Berkecambah Benih Kedelai (Glycine Max L.) Varietas Anjasmoro dan Biosoy 2 Ayu Oshin Yap Sinaga; Mimi Lindayanti; Putri Gita Lestari; David Septian Sumanto Marpaung
Media Agribisnis Vol 5 No 2 (2021): November
Publisher : Program Studi Agribisnis, Fakultas Pertanian, Universitas Muhammadiyah Buton

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35326/agribisnis.v5i2.1651

Abstract

Penurunan hasil produksi kedelai dapat disebabkan karena adanya faktor internal yaitu mutu benih, untuk itu perlu dilakukan pengujian mutu benih sebelum benih kedelai ditanam di lapangan. Pengujian daya kecambah dan tetrazolium dapat dilakukan untuk mengetahui mutu benih kedelai. Penelitian ini bertujuan untuk mengetahui daya berkecambah dan viabilitas benih kedelai varietas anjasmoro dan biosoy 2 serta mengetahui korelasi antara uji tetrazolium (uji TZ) dengan uji daya berkecambah benih kedelai (Glycine max L.) varietas anjasmoro dan biosoy 2. Pengujian vigor benih yang dilakukan menggunakan 2 metode yaitu pengujian vigor dengan uji daya berkecambah dan pengujian vigor dengan uji TZ. Hasil uji TZ yang diperoleh menunjukkan bahwa benih kedelai varietas anjasmoro dan biosoy 2 merupakan benih yang viabel. Benih varietas anjasmoro memiliki persentase benih viabel sebesar 92.75% dan benih biosoy 2 82%. Pengujian daya berkecambah benih kedelai varietas Anjasmoro, ditemukan kecambah normal 80.75%, kecambah abnormal 12.25%, dan benih mati 7%. Sementara benih kedelai varietas Biosoy 2 ditemukan kecambah normal 41.25%, kecambah abnormal 40.75%, dan benih mati 7.72%. Berdasarkan hasil yang diperoleh dapat disimpulkan bahwa benih kedelai varietas anjasmoro memiliki viabilitas dan daya berkecambah yang lebih tinggi dibandingkan dengan benih kedelai varietas biosoy 2. Penelitian lebih lanjut tetang pengaruh waktu simpan terhadap mutu benih, akan sangat membantu dalam memahami waktu yang tepat untuk penyimpanan kedelai varietas Anjasmoro dan Biosoy 2.
Perubahan Karakteristik Fisik Anggur Merah (Vitis vinivera) dengan Pelapisan Kitosan Selama Penyimpanan Lusi Yana Sari; David Septian Sumanto Marpaung; Nova Anika; Setyadi Gumaran; Ni Wayan Arya Utari; Tamrin Tamrin
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol 10, No 3 (2022)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2022.010.03.09

Abstract

Anggur merah (Vitis vinivera) adalah salah satu jenis buah yang banyak digemari masyarakat di Indonesia. Salah satu cara yang digunakan untuk menjaga mutu buah anggur merah adalah dengan pengaplikasikan bahan pelapis buah menggunakan kitosan. Penelitian ini dilakukan untuk mengetahui pengaruh pelapisan kitosan terhadap mutu buah anggur merah (Vitis vinivera). Penelitian ini dilakukan dengan variasi konsentrasi kitosan 2, 3, dan 4%. Setiap perlakuan menggunakan metode pencelupan selama 5 menit dan diamati selama 7 hari dengan waktu pengamatan hari ke 0, 3, dan 7. Hasil penelitian menunjukkan bahwa pelapisan kitosan dapat menyebabkan perubahan susut bobot dan tekstur selama penyimpanan, yang berpotensi digunakan sebagai pelapis untuk memperpanjang umur simpan anggur merah.
Co-Authors Anggia Indriyani Ayu Oshin Yap Sinaga Dwi Cahyani Gumaran, Setyadi Harmiansyah Lusi Yana Sari Mimi Lindayanti Mimi Lindayanti Muh. Kusmali Ni Wayan Arya Utari Ni Wayan Arya Utari Nova Anika Putri Gita Lestari Raizummi Fil’aini Resa Apriliani Ridwan Ridwan Sintia Li Aunila Siti Mutmainah Tamrin, Tamrin Via Rahmatul Ummah Yazid Bindar