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Agung Suharyanto
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Program Studi Agroteknologi, Fakultas Pertanian, Universitas Medan Area, Jalan Kolam No. 1, Pasar V, Medan Estate, Sumatera Utara
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Jurnal Ilmiah Pertanian ( JIPERTA)
Published by Universitas Medan Area
ISSN : -     EISSN : 27220338     DOI : 10.31289
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jiperta is a Scientific Journal of Agriculture located at the Faculty of Agriculture, University of Medan Area. Journal of Agrotekma presents the results of research with quantitative and qualitative approaches that are sourced on the development of cultivation research of plants and the protection of organic crops that are environmentally friendly and sustainable. It is published twice a year, every March and September.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 207 Documents
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Eksplorasi Patogen dan Intensitas Penyakit Bercak Daun pada Bibit Kelapa Sawit Simalungun Hutagalung, Padi Perjuangan; Noer, Zulheri
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6003

Abstract

Oil palm (Elaeis guineensis Jacq) is a national leading commodity that contributes greatly to the Indonesian economy. However, the nursery stage becomes a critical phase that is susceptible to disease attacks, especially leaf spots. This study aims to identify the types of pathogens that cause leaf spots, as well as measure the incidence and intensity of diseases in several oil palm nursery locations in Simalungun Regency. The research was carried out using a field survey method and laboratory identification using a purposive sampling approach in six nursery locations: PPKS, PTPN IV Bahjambi (pre-nursery and main-nursery), PTPN IV Belimbingan, PTPN IV Tinjowan, and community gardens in Silampuyang. Pathogen identification was carried out through macroscopic, microscopic, and Koch postulates tests. The results of the study showed that leaf spot disease in oil palm nurseries in Simalungun was caused by Curvularia sp. and Pestalotiopsis sp., with the highest attacks in PPKS (50% and 45%). Other locations such as PTPN IV and Silampuyang showed an intensity varying between 15% to 40% depending on the type of pathogen that predominates.
Pertumbuhan dan Produksi Tanaman Kacang Tanah (Arachis hypogea L) Terhadap Kasgot dan Pupuk TSP Pada Tanah Ultisol Lubis, Andri Sarkoni; Panggabean, Ellen Lumisar
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 1 (2025): Jurnal Ilmiah Pertanian (JIPERTA), Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i1.5994

Abstract

Peanuts (Arachis hypogaea L.) are agricultural commodities with high nutritional value and potential productivity. Fertilization plays an important role in supporting plant growth and yield, both through organic and inorganic fertilizers. This study aims to determine the effect of the application of kasgot and TSP fertilizers on the growth and yield of peanuts in ultisol soil. The study used a factorial 4×4 Random Group Design (RAK), with four levels of kasgot fertilizer (0, 0.5, 1, and 1.5 kg/polybag) and four levels of TSP fertilizer (0, 7.8, 15, and 22.5 g/polybag), as well as three replicates. The results showed that kasgot treatment had a significant effect on the number of pods per plot, but not significantly on the height of the plant, the number of pods per sample, and the weight of the pods. Meanwhile, TSP fertilizer has a noticeable effect on plant height, but not significantly on other yield parameters. These findings demonstrate the importance of appropriate fertilization strategies to increase peanut productivity in ultisol soils.
Analisis Pendapatan Petani Belimbing (Averhoa carambola) Di Desa Durin Simbelang Kecamatan Pancur Batu Kabupaten Deli Serdang Situmorang, Sudirman; Ilvira, Rika Fitri
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6048

Abstract

The natural conditions of Indonesia with different climate potentials and altitudes provide great potential for developing tropical fruits. Starfruit is widely found in tropical areas and is very popular among the community, especially in Durin Simbelang Village, Pancur Batu District. The purpose of this study was to determine the cost structure, revenue and income of starfruit farmers. This study used a purposive sampling method in the form of a census of starfruit farmers, namely 23 people and the determination of the research location was deliberate because this area is one of the starfruit producing areas in North Sumatra which is known for its starfruit quality. The data collection methods used were questionnaires and field observations. The data analysis tools used were cost, revenue and income structures. The results of this study obtained an average starfruit production of 4,691 kg / harvest season with a selling price of Rp. 5,000 / kg so that the average income obtained was Rp. 23,456,521. The cost of expenditure per harvest season was Rp. 3,025,305, so from these costs the average income of starfruit farmers was Rp. 20,431,216. In farming, the income obtained by star fruit farmers can be said to be high.
Efektivitas Lama Perendaman Benih Menggunakan Cendawan Entomopatogen Terhadap Tanaman Secara Umum Butar-Butar, Diva Slamat Christian; Vajri, Indri Yanil
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6008

Abstract

Entomopathogenic mushrooms (CEPs) double function as biocontrol agents against pests and as biostimulants that support plant growth through the production of hormones such as IAA and gibberelline. The application of CEP as a biostimulant can be done through seed treatment, with effectiveness greatly influenced by the type of mushroom and the duration of soaking. This study aims to evaluate the effect of the length of seed soaking in CEP suspension on germination, vigor index, and early plant growth. The three types of CEP used are Beauveria bassiana, Metarhizium anisopliae, and Trichoderma asperellum. Corn seeds are soaked in a conidia solution with a concentration of 1 × 10⁸ conidia/ml and sterile aqueducts for 3, 6, 12, and 24 hours. Observations were made on the percentage of sprouts (day 7), vigor index (day 12), and seedling growth (day 28). The results showed that soaking the seeds in CEP suspension was able to improve all growth parameters. Of the four durations tested, soaking for six hours gave the most optimal results in increasing germination, vigor, and early growth of corn plants.
Eksplorasi dan Seleksi Cendawan Endofit Pada Tanaman Kelapa Sawit (Elais Quineensis Jacq) yang Berpotensi Sebagai Entomopatogen Siregar, Lil Sapnur Aspin; Vajri, Indri Yanil
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 1 (2025): Jurnal Ilmiah Pertanian (JIPERTA), Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i1.5999

Abstract

This study aims to explore and select endophytic fungi from oil palm plants (Elaeis guineensis Jacq) which have the potential to be entomopathogenic to insect pests. Endophytic fungi are microorganisms that live in plant tissues without causing symptoms of disease, but some species are known to be able to infect insects and act as biological control agents. The research was carried out through the isolation of mushrooms from healthy oil palm roots, stems, and leaves obtained from PTPN III Silau Dunia's plantation, North Sumatra. A total of 120 isolates were successfully identified from 8 genera, with Fusarium oxysporum being the dominant species. Pathogenicity tests on Tenebrio molitor larvae showed that some isolates had high entomopathogenic activity, with mortality rates reaching 90% at concentrations of 20 × 10⁶ conidia/mL. These results suggest that endophytic fungi have great potential as a natural bioinsecticide in oil palm pest control. The use of biological agents is expected to be an effective and environmentally friendly alternative in supporting sustainable agricultural systems.
Eksplorasi & Seleksi Cendawan Rizosfer Pada Tanaman Kelapa Sawit (Elaeis Guinnensis Jacq) yang Berpotensi Sebagai Entomopatogen Ramadani, Iqbal; Vajri, Indri Yanil
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 1 (2025): Jurnal Ilmiah Pertanian (JIPERTA), Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i1.5989

Abstract

Oil palm (Elaeis guineensis Jacq) is a strategic plantation commodity in Indonesia that plays an important role in the national economy. However, the productivity of these plants is often hampered by pest attacks such as fireworms (Setora nitens) and horn beetles (Oryctes rhinoceros). So far, pest control has relied more on synthetic pesticides that have a negative impact on the environment and health. This study aims to explore the potential of local entomopathogenic fungi from oil palm rhizosphere soils as biological agents for pest control. The research was carried out through the stages of isolation, morphological characterization, and bioassay tests on Tenebrio molitor larvae. The results showed six mushroom isolates, namely Aspergillus sp., Beauveria sp., and Trichoderma sp. From the bioassay test, three isolates were pathogenic to the larvae, with the isolate Beauveria sp. (CRT 03) showed the highest mortality of 85%, LT₅₀ for 4.26 days, and mycosis 55.88%. These results show that Beauveria sp. CRT 03 has high potential as a local bioinsecticide. This research supports the development of sustainable pest control in oil palm plantations through the use of environmentally friendly biological agents.
Review Artikel: Keanekaragaman Berbagai Jenis Gulma di Perkebunan Kelapa Sawit Leo Nainggolan, Zames Jhon
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6013

Abstract

Oil palm (Elaeis guineensis Jacq.) is a strategic plantation commodity in Indonesia that plays an important role in the national economy. One of the main obstacles in oil palm cultivation, both in the phase of unproductive crops (TBM) and productive plants (TM), is the growth of weeds. Weeds compete directly with major crops in absorbing water, nutrients, and sunlight, and can inhibit vegetative growth and productivity of fresh fruit bunches (FFB). This study aims to identify weed diversity based on morphology and life cycle in oil palm TBM and TM land. The method used is a descriptive-narrative literature review with reference sources from scientific journals in 2013–2024. The results of the study showed that broadleaf weeds such as Ageratum conyzoides and Chromolaena odorata were dominant in both phases. Annual weeds dominate TBM land, while in TM there are variations of broadleaf, grass, teki-tekian, and pakuan weeds. This information is important to design a specific, efficient, and environmentally friendly weed control strategy in oil palm plantation management.
Analisis Potensi Toleransi Varietas Padi (Oryza Sativa L.) Indonesia dan Vietnam Terhadap Cekaman Salinitas Wulandari, Putri; Candra, Ifan Aulia
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6004

Abstract

Global climate change is causing increased seawater intrusion into coastal areas, triggering soil salinity that has a serious impact on the productivity of food crops, especially rice. This study aims to examine and compare the resilience of local rice varieties in Indonesia and Vietnam to salinity stress through a systematic literature review approach. The literature was collected from Google Scholar, Scopus, and ScienceDirect databases, with a range of 2010–2023, and analyzed using narrative synthesis and thematical-comparative analysis. The results of the study showed that varieties such as Sigambiri Merah, Inpago-8, and Ramos in Indonesia, as well as OM567, OM5451, and OM6976 in Vietnam have different levels of tolerance to salinity. The difference is determined by the expression of genes such as HKT1; 5, Saltol, OsMYB2, and OsNAC6, which play a role in the mechanism of ion exclusion, osmolite accumulation, as well as increased antioxidant activity. Marker-based breeding approaches and CRISPR/Cas9 technology have also strengthened the genetic resilience of plants. This study recommends the integration of molecular and agronomic approaches in the development of superior varieties to support food security in salinity-affected lands in Southeast Asia.
Respon Pertumbuhan Tanaman Kedelai (Glycine max L) Varietas Dega Terhadap Pupuk Kompos Ayam Dibandingkan Pemberian Pupuk NPK Sani Simanjuntak, Budi Herman; Hutapea, Sumihar
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 1 (2025): Jurnal Ilmiah Pertanian (JIPERTA), Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i1.5995

Abstract

Soybeans (Glycine max L.) are a strategic food commodity, but their productivity is still low due to declining soil fertility and excessive use of inorganic fertilizers. This study aims to compare the effect of the application of chicken manure and NPK fertilizer on the growth and yield of soybean plants of the Dega variety on marginal land. The research was carried out using a factorial Group Random Design (RAK) with two treatment factors: the type of fertilizer and the application dose, and three replicates. The observed parameters included plant height, number of leaves, number of pods, weight of seeds per plant, and weight of 100 seeds. The results of the study showed that chicken manure had a better influence on vegetative and generative growth than NPK fertilizer. Chicken compost improves soil quality, nutrient absorption efficiency, and microorganism activity. Although NPK fertilizers show a rapid initial response, the long-term advantages of organic fertilizers are more dominant. Therefore, fertilization based on chicken manure is recommended as an environmentally friendly and sustainable soybean cultivation strategy.
Analisis Faktor Produksi Usahatani Tumpang Sari Tanaman Padi dan Jagung Desa Nagabosar Zandroto, Febri Damai Hasrat; Sibuea, Faiz Ahmad
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 7, No 2 (2025): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v7i2.6079

Abstract

The purpose of this study was to analyze production factors on rice and corn crop yields in Nagabosar Village, Simalungun Regency, North Sumatra. The problem is focused on the production factors of intercropping rice and corn. In order to approach this problem, the method used is analysis with the COBB-Douglas production function approach. The main data were collected by surveys from 30 farmers who have implemented the Tumpang sari system in Nagabosar Village, Pematang Silimahuta District, Simalungun Regency, North Sumatra Province. The results showed that land area factors, urea fertilizer, KCL fertilizer had an effect on rice crop production, while seeds, SP36 fertilizer, pesticides and labor did not affect rice crop production in Nagabosar Village. Then in corn plants, land area factors, urea fertilizer and KCL fertilizer had an effect on production, while seed factors, SP36 fertilizer, pesticides and labor had no effect on corn crop production in this village. Based on the results of this study, it is hoped that farmers who intercrop rice and corn will pay more attention to production factors such as land area, seeds and others to increase the production of both crops and increase farmers' income.

Page 19 of 21 | Total Record : 207

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