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Journal of Agrotechnology and Sustainability
Published by Universitas Katolik Santo Thomas
ISSN : -     EISSN : 29861454     DOI : 10.54367
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal AGROSUSTAIN diterbitkan oleh Fakultas Pertanian Universitas Katolik Santo Thomas Medan bekerjasama dengan LPPM Universitas Katolik Santo Thomas. Jurnal ini mengakomodir artikel/karya ilmiah meliputi agronomi, ilmu tanah, hama dan penyakit, teknologi benih, pemuliaan tanaman, pascapanen, dan sosial ekonomi pertanian. Naskah yang dimuat dapat berupa hasil penelitian, telaah/tinjauan literatur, penelitian singkat (short communication) dan gagasan penting dalam bidang pertanian.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 42 Documents
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POTENSI PUPUK HAYATI DAN INSEKTISIDA TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN SAWI PAHIT (Brassica juncea L.) Claudia, Cindi; Sijabat, Octanina Sari; Nadhira, Ahmad; Razali, Razali
AGROSUSTAIN Volume 1 Nomor 2 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i2.2909

Abstract

Sawi Pahit (Brassica juncea L.) merupakan salah satu jenis tanaman hortikultura jenis sayur sayuran berasal dari daerah Tiongkok (Cina) dan Asia Timur. Tanaman sawi di budi dayakan sejak 2500 tahun yang lalu di daerah Cina Pada abad XI tanaman sawi masuk ke Indonesia bersamaan dengan lintas perdagangan jenis sayuran sub-tropis lainnya. Penelitian telah dilaksanakan di Desa Selayang, Kec.Selesai Kabupaten Langkat, Sumatera Utara pada bulan Oktober 2022 sampai dengan Desember 2022. Perlakuan pupuk hayati sebagai campuran media tanam yang terbaik adalah K1 (kompos+Mikoriza) terhadap hasil produksi tanaman sawi pahit. Interaksi media tanam dan pengaplikasian insektisida nabati berpengaruh nyata terhadap hasil produksi Secara umum perlakuan interaksi K1W2 (kompos + mikoriza) dan pengaplikasian insektisida 2 minggu sekali berpengaruh nyata terhadap hasil produksi.
PENGARUH KONSENTRASI GIBBERELLIC ACID (GA3) TERHADAP PERKECAMBAHAN BENIH AREN (Arenga pinnata Merr.) Matanari, Jawaller; Gusriani, Yunda; Manullang, Benget H
AGROSUSTAIN Volume 1 Nomor 2 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i2.2910

Abstract

This study aims to determine the effect of the concentration of gibberellins acid growth regulator (GA3) on the germination of sugar palm seeds. The experiment was carried out at Graha Tanjung Anom with an altitude of about 50 masl from December 2021 to May 2022. The experiment was carried out using a non-factorial Randomized Block Design. The factors studied were the treatment of gibberellins acid concentrations with 8 levels namely G0 ; zero or no gibberellins acid, G1 : 0.5 mg / l ; G2 : 1.0 mg/l ; G3 :1.5 mg/l : G4 :2.0 mg/l : G5 : 2.5 mg/l ; G5 ; 2.5 mg/l ; G6 ; 3.0 mg/l and G7 ; 3.5mg/l. The treatment consisted of 3 repetitions (blocks) so that there were 3x8 = 24 experimental units (plots). Each experimental unit (plot) consisted of 20 seeds (polybags). Parameters observed were the percentage of seeds germinating, average germination age, seedling height, number of leaves and stem diameter. Based on data analysis (Anova), and the discussion some conclusions can be drawn as follows; Concentrations of 0 to 3.5 mg/l GA3 markedly increased the percentage of seed germination, accelerated the germination age of 5.48 days, tended to increase seedling height and number of leaves as well as the diameter of the base of the seedling stems. It is necessary to investigate the effect of GA3 concentration and soaking time on sugar palm seed germination.
PENGARUH MEDIA TANAM DAN PEMBERIAN PUPUK UREA TERHADAP PERTUMBUHAN DAUN BIBIT KELAPA SAWIT (Elaeis gueneensis Jacq.) DI MAIN NURSERY Waruwu, Erwin; Sijabat, Octanina Sari; Kurniawan, Dedi; Berliana, Yunida
AGROSUSTAIN Volume 1 Nomor 2 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i2.2915

Abstract

The oil palm plant (Elaeis guineensis Jacq.) originates from West Africa, is the mainvegetable oil producing plant which has a higher productivity than other vegetable oil producing plants. This study aims to determine the effect of nitrogen fertilizer application onthe number of leaves and stem diameter of oil palm seedlings. The study used a factorialrandomized block design (RBD) with 2 treatment factors, namely the planting mediafactor and the urea fertilizer application factor. The results of the analysis showed that thetreatment of the growing media had a significant effect on the number of leaves. The ureatreatment showed no significant effect on the number of leaves and the interaction of thetwo factors had no significant effect on the number of leaves.
RESPON PERTUMBUHAN BIBIT TANAMAN KAKAO (Theobroma cacao L.) TERHADAP DOSIS MIKORIZA DAN FREKWENSI PENYIRAMAN Sulastri, Yustina Sri; Gusriani, Yunda; Sinaga, Ricci
AGROSUSTAIN Volume 1 Nomor 2 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i2.2916

Abstract

This study entitled Effect of Mycorrhizal Dosage and Watering Frequency on the Growth of Cocoa (Theobroma cacao L.) Seeds. The purpose of this study was to determine the frequency of watering and the right dose of mycorrhizal fungi in cocoa (Theobroma cacao L.) nursery techniques. In this study using a randomized block design (RBD) consisting of two factors. The first factor is the frequency of watering (P) which consists of 4 levels: P1 = watering once a day, P2 = watering every 3 days, P3 = watering every 5 days and P4 = watering once every 7 days. The second factor was the mycorrhizal dose (M) which consisted of 4 factors: M0 = without mycorrhizal administration, M1 = 25 g mycorrhizal, M2 = 50 g mycorrhizal and M3 = 75 g mycorrhizal. Parameters observed consisted of plant height, stem diameter, number of leaves, leaf area, fresh weight of roots, dry weight of roots, fresh weight of plants and dry weight of plants. The results showed that the treatment of watering frequency significantly increased root wet weight and plant wet weight, but had no significant effect on plant height, stem diameter, number of leaves, leaf area, root dry weight and plant dry weight. Mycorrhizal dose treatment had no significant effect on plant height, stem diameter, number of leaves, leaf area, root wet weight, root dry weight, plant wet weight and plant dry weight. The interaction of watering frequency and mycorrhizal doses had no significant effect on plant height, stem diameter, number of leaves, leaf area, root wet weight, root dry weight, plant wet weight and plant dry weight.
PENGARUH PEMBERIAN DOSIS PUPUK ORGANIK DARI LIMBAH PKS PADA MEDIA TANAM SUBSOIL TERHADAP PERTUMBUHAN BIBIT KELAPA SAWIT ( Elaeis guineensis jacq ) DI PRE NURSERY Ramadhinata, Ikhwan; Sijabat, Octanina Sari; Razali, Razali; Nadhira, Ahmad
AGROSUSTAIN Volume 1 Nomor 2 (2023)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54367/agrosustain.v1i2.2924

Abstract

This study aims to determine the effect of organic fertilizer from PKS waste on the growthof oil palm seedlings. Research has been conducted in Kec. Patumbak Kab. Deliserdang,Marindal Village I Pasar V North Sumatra from December 9 2022 to March 2023. With analtitude of 25 meters above sea level (above sea level). And the study design model useda non-factorial Randomized Block Design (RBD) with 16 treatment factors, all treatmentsconsisted of 300 g of subsoil, 300 g of sand and 0.4 g of basic fertilizer (BST according toeach ratio). Treatment of organic fertilizer from PKS waste had a significant effect on theparameters of plant height aged 12 mst, leaf area of 6 mst and plant fresh weight of 12mst, but had no significant effect on the parameters of plant height aged 4 to 10 mst,stem diameter of 4 to with 12 weeks of planting, number of leaves from 4 to 12 weeks,leaf area of 4.8, up to 12 weeks and dry weight of 12 weeks of oil palm.
Pengaruh Intensitas Cahaya Matahari Terhadap Perkecambahan Dan Pertumbuhan Biji Gulma (Asystasia Gangetica L) Sitinjak, Lentina
AGROSUSTAIN Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

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Abstract

This study aims to control the growth of Asystasia gangetica L plants and observe the effect of sunlight intensity on the germination and growth of Asystasia gangetica L plants. Asystasia gangetica L is often considered a weed that interferes with the growth of cultivated plants, including oil palm. This phenomenon is interesting to study because the growth of this weed can compete with cultivated plants. This research was conducted in the agricultural land of Santo Thomas Catholic University, Medan. North Sumatra. With an altitude of 2.5 - 37.5 meters above sea level (MDPL). This research began in August 2024 until October 2024. This research method uses a non-factorial RAK (Randomized Block Design) consisting of one treatment, namely sunlight intensity and consists of 5 levels, namely: N0: 100% light intensity, N1: 80% light intensity, N2: 60% light intensity, N3: 40% light intensity, N4: 20% light intensity with a linear model. Based on the research results, the intensity of sunlight has a significant effect on the observed parameters, namely germination at ages 1 and 2 MST, plant height at ages 2,4,6,8,10,12 MST, number of leaves at ages 2,4,6,8,10,12 MST, number of branches 4,6,8,10,12 MST, number of panicles 6,8,10,12 MST and number of tubes (capsules) 8,10,12 MST
Efektivitas Penggunaan Beberapa Jenis Ekoenzim Dalam Pengendalian Hama Ulat Bawang (Spodoptera Exigua) Pada Tanaman Bawang Merah (Allium Ascalonicum L) Panjaitan, Delima
AGROSUSTAIN Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

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Abstract

This study aims to determine the effect of concentration and variation of eco-enzyme, as well as the interaction between these two treatments, on the control of beet armyworm (Spodoptera exigua) pests in shallot plants (Allium ascolonicum L). The research was conducted in Sempakata Subdistrict, Medan Selayang District, Medan, at an altitude of 32–50 meters above sea level, from March to August 2024. A Randomized Complete Block Design (RCBD) was used, involving two factors. The first factor was eco-enzyme concentration (E), consisting of four levels: E1 = 5 cc/L water, E2 = 10 cc/L water, E3 = 15 cc/L water, and E4 = 20 cc/L water. The second factor was eco-enzyme variation (V), also consisting of four levels: V1 = Fruit-based eco-enzyme, V2 = Fruit-based eco-enzyme + Garlic, V3 = Fruit-based eco-enzyme + Lemongrass, and V4 = Fruit-based eco-enzyme + Tobacco. Data were analyzed using analysis of variance (ANOVA). The observed parameters included plant height, stem diameter, number of leaves, fresh bulb weight per sample, fresh bulb weight per plot, pest attacks, and pest attack intensity. Based on the results, eco-enzyme concentration had a significant effect on plant height at 4 weeks after planting (WAP), number of leaves at 2 WAP, pest attack intensity at 6 WAP, and a highly significant effect on pest attack intensity at 4 WAP. Eco-enzyme variation had a highly significant effect on plant height, stem diameter at 2 WAP, number of leaves, pest attacks at 4 WAP, and pest attack intensity at 4 and 6 WAP. It also had a significant effect on pest attacks at 2 and 6 WAP and pest attack intensity at 2 WAP. The interaction between eco-enzyme concentration and variation had a significant effect on plant height at 4 WAP and pest attack intensity at 4 WAP. The most effective eco-enzyme variation was the combination of fruit-based eco-enzyme and tobacco
Monitoring Serangan Dan Pengendalian Hama Ulat Api (Setothosea Asigna) Pada Tanaman Kelapa Sawit Di Perkebunan Tanah Gambus Pt. Socfin Indonesia Hutauruk, Sixtus
AGROSUSTAIN Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

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Abstract

Monitoring of Attacks and Control of Fire Caterpillar Pests (Setothosea asigna) on Oil Palm Plants at the Tanah Gambus Plantation of PT. "Socfin Indonesia" aims to describe the results of monitoring and control methods for fireworms in oil palm plantations. This research was conducted in the Three Divisions of Tanah Gambus Plantation, Batu Bara Regency, North Sumatra, from January to April 2024. The study used descriptive methods through field observations, sampling at census points, and re-censuses. Monitoring was conducted to monitor fireworm populations, while primary control was carried out through fogging with Santador 25 EC insecticide and diesel. This paper presents an integrated approach to controlling fireworms, which damage oil palm productivity. This study highlights the important role of routine monitoring, which involves mapping infestation points in specific blocks and establishing infestation criteria (light, moderate, and heavy) to determine appropriate control methods. In addition to chemical techniques, control also considered alternative control methods such as biological control with natural predators. The results showed variations in fireworm populations across blocks, influenced by environmental conditions such as high humidity. Post-control re-censtrals were conducted to measure the effectiveness of these methods
Karakteristik Buah Dan Biji Kakao (Theobroma cacao L.) Pada Berbagai Altitude Di Dataran Tinggi sitohang, nurdin
AGROSUSTAIN Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

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Abstract

The quality of farmers' cacao beans is generally still low today. One of the causes is because they are planted at various altitudes, especially in the highlands. The research focuses on the characteristics of cacao pod and beans at several altitudes in the highlands of North Sumatra. This research is conducted from July 2022 to December 2023 in Simalungun, Karo, Dairi, Samosir, North Tapanuli, and Humbang Hasundutan Regencies of North Sumatra Province. The parameters observed are pod length, pod diameter, pod volume, pod dry weight, bean dry weight, number of beans per pod, average weight per bean at 24 different altitudes between 815 m to 1300 m above sea level, with 10 pieces (replications) respectively in each level. The research results show that the characteristics of cacao pod and beans decrease along with increasing altitude in the highlands. The characteristics of cacao pod and beans in the highlands are still in the normal category compared to those in the lowlands
Dampak Pemberian Konsentrasi Eco Enzyme Dalam Upaya Menekan Insidensi Penyakit Virus Kuning Pada Tanaman Cabai Merah (Capsicum Annuum L.) tarigan, rio
AGROSUSTAIN Vol. 3 No. 2 (2025)
Publisher : LPPM Universitas Katolik Santo Thomas Medan

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Abstract

This study aims to determine the effect of ecoenzyme in suppressing the intensity of yellow virus disease in red chili plants (Capsicum annum L). This study used a non-factorial Randomized Block Design (RAK), namely with one factor of adding ecoenzyme as an intensity suppressor, consisting of 5 treatment levels, namely E0: control, E1: 10 ml ecoenzyme/liter of water, E2: 20 ml ecoenzyme/liter of water, E3: 30 ml ecoenzyme/liter of water and E4: 40 ml ecoenzyme/liter of water. In carrying out this study, it is necessary to prepare the land, install mulch, fertilize, plant, replant, water, weed and harvest and apply ecoenzyme. The parameters observed were plant height (cm), stem diameter, incidence of red chili plants (Capsicum annum L) on the yellow virus, production or harvest per plot. The provision of ecoenzyme concentration did not significantly affect plant height and stem diameter at the ages of 2, 4 and 6 MST. Addition of nutrients to plants can increase growth, plant immunity to viruses and diseases and increase production for plants. The provision of ecoenzyme concentration affects the diameter of 8 MST and the weight of red chili (Capsicum annum L) per plot. The higher the concentration of ecoenzyme, the better the growth and production of red chili (Capsicum annum L). The provision of ecoenzyme concentration has an effect on suppressing the incidence of yellow virus attacks on red chili (Capsicum annum L) plants

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