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Analisis Pengolahan Lateks Karet di PT. PP. London Sumatra (LONSUM), Tbk Sei Rumbia, Labuhanbatu Selatan, Indonesia Muhammad Yasir Rambe; Khairul Rizal; Novilda Elizabeth Mustamu; Yusmaidar Sepriani
Agro Bali : Agricultural Journal Vol 5, No 2 (2022)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.509 KB) | DOI: 10.37637/ab.v5i2.963

Abstract

Karet adalah suatu komoditi perkebunan utama di dunia yang memiliki potensi yang cukup besar. Daerah Kabupaten Labuhanbatu Selatan memiliki begitu banyak perusahaan-perusahaan karet yang telah berkembang, salah satunya yaitu pada PT. PP. London Sumatra (LONSUM) Indonesia, Tbk Sei Rumbia Labuhanbatu Selatan. Perusahaan ini membudidayakan tanaman karet dengan output berupa pada lump serta dry lateks. Lateks inilah yang kemudian diolah di pabrik dan menjadikan suatu lembaran-lembaran karet (rubber sheet). Penelitian ini bertujuan untuk mengetahui kelayakan manajemen sistem pengolahan lateks di PT. PP. London Sumatra (LONSUM) Indonesia, Tbk Sei Rumbia Rubber Factory, Kecamatan Kotapinang, Kabupaten Labuhanbatu Selatan. Penelitian ini dilakukan mulai Januari hingga Maret 2021. Data penelitian yang digunakan adalah data primer yang diperoleh melalui wawancara langsung dengan staf serta menggunakan metode analisis deskriptif. Berdasarkan hasil penelitian, usaha pengolahan lateks karet pada PT. PP. London Sumatra (LONSUM) Indonesia, Tbk Sei Rumbia Labuhanbatu Selatan sudah layak diusahakan dan memberi keuntungan pada faktor lingkungan, serta menunjukkan prospek positif dalam pengembangan industri kedepan.
Pengaruh Herbisida Glifosat 480 SL, Paraquat dan Kombinasinya pada Gulma Pakisan (Nephrolepis biserrata) di Kebun Kelapa Sawit Menghasilkan Joko Prianto; Yusmaidar Sepriani; Dini Hariyati Adam; Widya Lestari
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 3, No 1 (2022): JMATEK FEBRUARI 2022
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

In this study, weeds in oil palm plantations that produce, including Nephrolepis biserrata, have different resistance to single or combination herbicides, with a mixed herbicide of glyphosate 480 sl and paraquat is expected to control fern weeds (Nephrolepis biserrata) more effectively and efficiently than singly. carried out using a non-factorial randomized block design (RAK) with 3 treatments, namely, D0: Babat D1: glyphosate herbicide 480 sl dose 30 ml 5 liter water volume, D2: paraquat herbicide 25 ml 5 liter water volume, D3: glyphosate herbicide 480 sl + herbicide paraquat at a dose of 20 ml with a volume of 5 liters of water added with mechanical treatment repeated 4 times. Observation parameters in this study were weed mortality rate, leaf color poisoning rate and natality. The results showed that the best treatment was to use the herbicide paraquat (25 ml volume of water 5 liters) on day 13 the weeds had died, while in the herbicide treatment glyphosate 480 sl (30 ml volume of water 5 liters) suppressed weed death on day 19 in the herbicide treatment glyphosate 480 sl mixed with paraquat was able to suppress mortality on day 19 Keywords: plantation, weeds, herbicides
Konsentrasi Pelilinan Terhadap Daya Simpan Buah Pepaya (Carica papaya L.) Krisdianto Krisdianto; Yusmaidar Sepriani; Badrul Ainy Dalimunthe
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 2, No 1 (2021): JMATEK FEBRUARI 2021
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

Post-harvest technology for agricultural products has grown from time to time. One of the post-harvest technologies for agricultural products that is carried out is adding a coating material to the fruit to slow down evapotranspiration which increases the shelf life of papaya fruit. Papaya yields are increasing from time to time, this must be followed by handling the papaya harvest properly. This study aims to determine whether or not the effect of giving wax with oleic acid and tritenolamine solvents on the shelf life of papaya fruit and to determine the concentration of beeswax with oleic acid and tritenolamine solvents which are good for coating papaya fruit. The treatment parameters were wax coating with a concentration of 2%, 4%, 6% and control. Observations included fruit weight, fruit weight loss, fruit texture and organoleptic tests on fruit color, fruit aroma and fruit taste. The results showed that applying beeswax coating with oleic acid and tritenolamine solvent did not affect the shelf life of papaya fruit. The right concentration to coat the papaya fruit is wax coating with a concentration of 4%. Key words: Papaya fruit, wax coating, oleic acid, tritenolamine, shelf life, fruit quality
Pengaruh Abu Tandan Kosong Kelapa Sawit Terhadap Pertumbuhan Tanaman Kedelai (Glycine max L.) R.Almaidian. Nurrijal. Yacub; Yusmaidar Sepriani; Badrul Ainy Dalimunthe
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 3, No 2 (2022): JMATEK AGUSTUS 2022
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

Soybeans continue to increase linearly from year to year, but the realized results cannot meet the demand. This study aims to determine the effect of oil palm empty fruit bunch ash on soybean plant growth (Glycine max L.). This research was conducted in the village of Aek hitetoras, Marbau sub-district, North Labuhanbatu district, North Sumatra. This research was conducted from April to June 2021. The research design used was a non-factorial randomized block design (RAK) with 4 treatments, namely J0: (Empty bunches of ash 0 grams/plant). J1 : (Empty bunches of oil palm ash 300 grams/plant). J2 : (Empty bunches of oil palm ash 600 grams/plant). J3 : (Empty oil palm bunch ash 900 grams/plant). Parameters observed were plant height, number of leaves, leaf width, stem diameter. The data were analyzed using the average test with the level of ash of empty fruit bunches of oil palm. The results showed that the best treatment was using the J3 treatment (900 grams/plant of oil palm empty fruit bunch ash). Keywords: soybean, growth, jangkos ash
Efek Pemberian Dosis Pupuk NPK Phonska 15-15-15 Terhadap Pertumbuhan Dan ProduksiTanaman Terung Ungu Mustang F1 (Solanum Melangona L.) Aslan Clinton Hutauruk; Yusmaidar Sepriani; Fitra Syawal Harahap
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 2, No 2 (2021): JMATEK AGUSTUS 2021
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

The effect of the dosage of NPK Phonska 15-15-15 on the superior eggplant (Solanum Melongena L). This research was conducted at the Mangga Bawah Junction in the Desert. This research will be carried out from April to June 2020. The method used is the average height of the eggplant plants in NPK Phonska 15-15-15 fertilizer treatment. It can be seen that the highest value and the lowest value for eggplant plants aged 5 weeks is the highest value at P2 of 56 cm and the lowest value at P0 is 35 cm. The average of the number of branches of eggplant in NPK Phonska 15-15-15 treatment can be seen the highest value and the lowest value in the 5 week old eggplant plant, namely the highest value at P3 of 6 stalks and the lowest value at P0 of 1 stalk. The average weight of the eggplant plant showed that the results of the average difference test from the height of the eggplant plant in the NPK Phonska 15-15-15 treatment can be seen that the highest value and the lowest value in the eggplant plant were the highest value at P3 of 4.20 cm and the value the lowest at P0 of 1.30cm Key words: NPK Phonska 15-15-15, Solanum melongena L.
Karakteristik Morfologi dan Analisis Kandungan Senyawa Fitokimia Berbagai Tapak Dara (Catharanthus roseus) Malpida Ulpa; Kamsia Dorliana Sitanggang; Hilwa Walida; Yusmaidar Sepriani
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 3, No 2 (2022): JMATEK AGUSTUS 2022
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

Palm flower is a plant that is widely distributed in the tropics. Originally from Madagascar, it was known as Madagascar periwinkle. The components of active compounds present in blood sites are phenolic acids, alkaloids, and flavonoids. Palm flower leaves contain a lot of flavonoid compounds that function as antioxidants, stimulate the production of nitrite oxidants (can dilate blood vessels), inhibit erythrocyte clumping, and can inhibit the growth of cancer cells. This study aims to observe the morphological characteristics and determine the content of phytochemical compounds in various varieties of palm flower (Catharanthus roseus) collection of the Labuhanbatu University experimental garden. The materials used in this study were 4 types of palm flower plant varieties collected by Labuhanbatu University. The method in this research is a survey with a qualitative approach to collect information related to the collected data. The results of observations of morphological characteristics were differences in stem color and flower color of palm flower and differences in flavonoids in each palm flower, and palm flower TW was palm flower which had the highest flavonoid content, namely 663.80. Keywords: Palm flower, morphology, flavonoids
Pengaruh Dosis dan Lama Perendaman Ekstrak Bawang Merah (Allium cepa) Terhadap Stek Batang Tanaman Air Mata Pengantin (Antigonon leptopus) Bayu Riswandi; Yusmaidar Sepriani; Kamsia Dorliana Sitanggang; Siti Hartati Yusida Saragih
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 4, No 1 (2023): JMATEK FEBRUARI 2023
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

This study aims to compare the effect or effectiveness of the bridal tear plant (antigonon leptopus) which was dosed and onion extract (allium cepa) in the soaking process. This research was conducted in the village III Kampung Jawa Pulo Jantan, NA. IX-X sub-district, North Labuhanbatu Utara. This research was conducted from April to June 2021. The design used in the study was a randomized block design (RAK) which involves two (2) factors, including the first factor dosage composition and immersion time (K) with 4 treatments, namely: K0 = Kontrol; K1 = 5 ml; K2 = 10 ml; K3 = 15 ml. Second factor immersion time (L) with 3 treatments, namely: L1 = 8 hours; L2 = 16 hours; L3 = 24 hours. Parameters observed were rod length (cm), number of leaves (sheet), leaf width (cm), stem diameter (mm). As for the result obtained from this study, the highest average was found in the K3L1 treatment, namely a dose of 15 ml with an immersion time 8 hours and the lowest was found in the K0L1 treatment (without treatment). Keywords: Antigonon, Growth, Onion Extract
Pengaruh Ekstrak Daun Mimba (Azadirachta indica Juss) Terhadap Mortalitas Hama Kutu Kebul (Bemisia tabaci) Sri Maharani; Yusmaidar Sepriani; Hilwa Walida
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 1, No 2 (2020): JMATEK AGUSTUS 2020
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

The impact of chemical pesticides in the long run can have side effects on the environment and human health. Neem leaf extract (Azadirachta indica juss) is an environmentally friendly solution in controlling kebul lice pests (Bemisia tabaci). This study aims to get an effect on the dose of neem leaf extract (Azadirachta indica juss) which has the potential to control whitefly infestation (Bemisia tabaci). This research was conducted using 4 treatments, in one treatment repeated 5 times with different doses. Each repetition contained 10 whitefly (Bemisia tabaci). The results showed that there was a significant effect on the administration of neem leaf extract (Azadirachta indica juss) in suppressing mortality of whitefly infestation (Bemisia tabaci). Neem leaf extract (Azadirachta indica juss) at a dose of 50 ml and 75 ml gives a good effect on whitefly (Bemisia tabaci) pests.The impact of chemical pesticides in the long run can have side effects on the environment and human health. Neem leaf extract (Azadirachta indica juss) is an environmentally friendly solution in controlling kebul lice pests (Bemisia tabaci). This study aims to get an effect on the dose of neem leaf extract (Azadirachta indica juss) which has the potential to control whitefly infestation (Bemisia tabaci). This research was conducted using 4 treatments, in one treatment repeated 5 times with different doses. Each repetition contained 10 whitefly (Bemisia tabaci). The results showed that there was a significant effect on the administration of neem leaf extract (Azadirachta indica juss) in suppressing mortality of whitefly infestation (Bemisia tabaci). Neem leaf extract (Azadirachta indica juss) at a dose of 50 ml and 75 ml gives a good effect on whitefly (Bemisia tabaci) pests.
Analisis Peluang Usaha Toko Pertanian di Beberapa Kecamatan Kabupaten Labuhan Batu Ali Anjas Munthe; Yusmaidar Sepriani; Kamsia Dorliana Sitanggang
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 2, No 1 (2021): JMATEK FEBRUARI 2021
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

This study is entitled Analysis of Farm Shop Business Opportunities in Labuhan Batu District which aims to find the location of 9 sub-districts in Labuhan Batu Regency which are most likely to open a new farm shop business.This study uses a qualitative descriptive method by distributing questionnaires to farm shop owners that have existed in each district in Labuhan Batu Regency, namely Rantau Selatan, Rantau Utara, Bilah Hulu, Bilah Hulu Barat, Bilah Hilir, Pangkatan, Panai Hulu, Panai Tengah. and Panai Hilir.Samples were taken many as 37 respondents with 30 questions each. The results of this study stated that Panai Hilir District was the most likely location to open a new agricultural shop business because Panai Hilir sub-district became one of the largest rice granaries in Labuhan Batu District.Covering an area of 14,872.87 hectares of active agricultural land owned by the community, this sub-district is in dire need of agricultural materials such as fertilizer, pesticides, herbicides and other agricultural equipment. Based on the supporting data table, it can be sorted that the sub-district which has the most opportunity to open a new agricultural shop business is Panai Hilir(82%), Panai Hulu(68%), Panai Tengah(67%),Pangkatan(63%), Bilah Barat(61%), Bilah Hilir(60%), Bilah Hulu(60%), Rantau Selatan(55%), Rantau Utara(52%).                                Keywords: Business Opportunities, Labuhan Batu, Agricultural Shop
Analisis Tingkat Bahaya Erosi dengan Metode USLE (Universal Soil Losses Equation) di Perkebunan Kelapa Sawit PTPN IV Kebun Berangir Kabupaten Labuhanbatu Utara Wisnu Wardana Lubis; Yusmaidar Sepriani; Widya Lestari
JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK) Vol 4, No 1 (2023): JMATEK FEBRUARI 2023
Publisher : JURNAL MAHASISWA AGROTEKNOLOGI (JMATEK)

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Abstract

PTPN IV, the Berangir business unit, has some flat-sloping areas and most of them are hilly which are prone to erosion. Erosion needs to be known as early as possible so that land damage due to erosion can be avoided. This study aims to determine the level of erosion hazard that occurs using the USLE (Universal Soil Losses Equation) method at the PTPN IV oil palm plantation business unit Berangir Perkbunan Berangir Village, NA IX-X District, North Labuhanbatu Regency. This research was conducted from March to May 2021, using an exploratory descriptive method through a field survey, followed by using the USLE method to predict erosion. Parameters observed were rain erodibility, soil erodibility, slope length and slope, plants, and soil conservation measures. The results of this study indicate the level of erosion hazard ranges from 11,694-7819,104 tons/ha/year. The highest actual erosion value was found in the sample of 20 Afd V, which was 7819.104 tons/ha/yr with typic paleudults soil type and steep slopes. The lowest actual erosion value is found in sample 3 Afd I, which is 11,694 tons/ha/yr with psammentic paleudults soil type and gentle slope. Keywords: Plantation, Erosion, USLE (Universal Soil Losses Equation)