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Benny Hidayat
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PERTANIAN TROPIK
Published by Universitas Sumatera Utara
ISSN : 26557576     EISSN : 23564725     DOI : https://doi.org/10.32734/jpt.
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Tropical Agriculture Journal (JPT) is a peer-reviewed online journal of Agriculture Postgraduate Study Program Universitas Sumatera Utara (USU). Journal is a result of research, or scientific reviews of researchers, students and agricultural institutions, and others related to agricultural studies in the tropical region. Published in Indonesian and English language with 3 volumes/year (April, August, December). These articles are indexed by Google Scholar, PKP Indexing, RootIndexing, Portal Garuda, Indonesian Publication Index (Garuda Portal), One Search Perpustakaan Nasional, BASE (Bielefeld Academic Search Engine), and Directory of Research Journal Indexing (DRJI), JPT is member of AJPI (Association of Indonesian Agriculture Journal, and strives to be a means of periodic, accredited, national scientific publications or reputable international publications through.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 377 Documents
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Entomopathogen Bacteria as Biocontrol Agents against Insect Pests Zulyusri; Dini Rohadatul Aisya; Tomi Apra Sentosa
Jurnal Online Pertanian Tropik Vol. 10 No. 3 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i3.12508

Abstract

Insects are animals that have the potential to become pests. One way to control insect pests that are environmentally friendly is by using entomopathogenic bacteria. Bacteria are one of the biocontrol agents that are found in various places and have mass production that is faster than other microorganisms. This study aims to explain the types of entomopathogenic bacteria that act as insect pest controllers for agriculture. The type of research used in this study is Systematic Literature Review. The data used was obtained from the analysis of 80 articles related to issue 2014-2022 . Article which is used is collected by searching the database Google Scholar and ERIC. The results showed that there were several types of pathogenic bacteria against insects, including Bacillus thuringiensis against cockroaches, Serratia entomophila against stem planthoppers, Serratia proteamaculans against the Coconut Beetle, and Serratia wilting against the Coconut Beetle.
Effect of Micronutrient Fertilization on Soil Fertility and Production of Maize Nugroho, Gabryna Auliya; Novalia Kusumarini; Wachidiyah Romadhoni; Syahrul Kurniawan
Jurnal Online Pertanian Tropik Vol. 10 No. 3 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i3.14388

Abstract

Balanced fertilization in both macro and micronutrients is one strategy in soil fertility management to prevent microelement deficiencies. This fertilization type could increase plant growth and production as well as maintain soil fertility. This research aimed to examine the role of micro fertilization on supporting plant productivity and soil fertility. Research that was conducted in Dau, Malang, East Java was designed using a Randomized Block Design (RBD) with 9 treatments, ie B0 (Control), B1 (100% standard fertilization), B2 (100% standard fertilization and 50% ZnCuB), B3 (100% standard fertilizer and 100% ZnCuB), B4 (100% standard fertilizer and 150% ZnCuB), B5 (75% standard fertilizer and 50% ZnCuB), B6 (75% standard fertilizer and 100% ZnCuB), B7 (75% basic fertilizer and 150% ZnCuB), and three replications of each. 100% of basic fertilization referred to 440 kg Urea/ha, 250 kg SP-36/ha, and 350 kg KCl/ha, while 100% micro fertilizer ZnCuB (4:6:6) was 19 kg/ha. Reducing 25% of basic fertilizer combined with 150% of micro fertilizer (28.5 kg/ha ZnCuB) resulted in a significant increase in plant growth and production by 54% to control.  Furthermore, micronutrient fertilizers could maintain soil fertility as well as prevent soil acidification.
Potential of Bio-Silica From Palm Oil Waste As a Rehabilitation of Dry Marginal Land on Corn (Zea mays L.) Planting Agris Soufri Laila; Kemal Bakhtiar Rahman1; Safira Azkia; Muhammad Rafli; Akasah, Wida
Jurnal Online Pertanian Tropik Vol. 10 No. 2 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i2.14397

Abstract

Food estate merupakan program unggulan pemerintah dalam mengatasi krisis pangan akibat Covid-19. Program ini menggunakan tanah ultisol yang memiliki kesuburan rendah karena memiliki pH dan silika yang rendah. Penelitian ini bertujuan untuk meningkatkan kesuburan tanah ultisol dengan pemberian pupuk biosilika dari limbah cangkang kelapa sawit agar meningkatkan produktivitas tanaman jagung (Zea mays L.). Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 5 taraf perlakuan dan 4 ulangan. Perlakuan pemberian pupuk biosilika sebanyak 0 g/polybag(S0) sebagai kontrol, 10 g/polybag (S1), 20 g/polybag (S2), 30 g/polybag (S3), dan 40 g/polybag (S4). Parameter yang diamati pada pupuk biosilika berupa uji FTIR, pada tanah ultisol berupa uji pH, P tersedia, Si tersedia, dan daya hantar listrik (DHL), sedangkan pada tanaman jagung meliputi tinggi tanaman, jumlah daun, bobot kering akar, bobot kering tajuk, dan serapan P. Data diolah menggunakan software IBM SPSS Statistic 25 dan dianalisis menggunakan analisis keragaman (Anova) pada taraf uji 5%. Hasil penelitian menunjukkan bahwa limbah cangkang kelapa sawit mengandung silika sehingga dapat digunakan sebagai pupuk biosilika. Pemberian pupuk biosilika pada tanah ultisol mampu meningkatkan pH dan P tersedia sehingga meningkatkan serapan P dan pertumbuhan tanaman jagung. Perlakuan terbaik diperoleh pada perlakuan pemberian pupuk biosilika sebanyak 30 g/polybag (S3).
Andisol Soil Quality Study on Red Chili (Capsicum annum L.) Planting Land, Pondok Balik Village, Ketol District, Central Aceh Regency Kemala Sari Lubis; Zulkifli Nasution; Hidayat, Benny; Suhardi, Silvira
Jurnal Online Pertanian Tropik Vol. 10 No. 2 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i2.14724

Abstract

Penelitian ini bertujuan untuk menilai kriteria kualitas tanah pada lahan cabai merah yang dibudidayakan oleh petani. Penelitian ini bersifat deskriptif eksploratif, dengan pendekatan survey lapangan dan didukung analisis tanah di laboratorium. Pengambilan sampel dilakukan dengan metode Purposive secara Random Sampling, dengan mengkombinasikan pengambilan sampel komposit. Sampel tanah diambil di 9 titik pada kedalaman 0-20 cm yang tersebar pada tiga satuan lahan yang berbeda berdasarkan jenis tanah, penggunaan lahan, dan kemiringan lahan. Analisis sampel yang dilakukan yaitu tekstur tanah, BD, TRP, KTK, C-organik, total mikroba, pH, Ntotal, P-tersedia, dan KB. Kemudian dilanjutkan dengan mendeskripsikan hasil penelitian dengan melakukan penilaian kualitas tanah menggunakan metode Lal (1994) dan 10 Minimum Data Set (MDS) pada tiap indikator. Hasil penelitian menunjukkan bahwa tanah di Desa Pondok Balik memiliki kualitas tanah dengan kriteria Sedang pada setiap topografi. Kualitas tanah pada topografi datar (0-8%) dan agak curam (15-24%) memiliki niai 29 dengan kriteria kualitas tanah sedang, sedangkan pada topografi landai (8-15%) memiliki nilai 30 dengan kualitas tanah sedang. Perbedaan nilai kualitas tanah lebih ditekankan pada pengaruh lama manajemen lahan yang dilakukan.
Biochar from Raw Materials Arundo Spp; Effect on Corn Plant Growth and Production Iwar Barus; Guna Darman; Syahrullah; Ambo Upe; Tenri Sau
Jurnal Online Pertanian Tropik Vol. 10 No. 2 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i2.15181

Abstract

Biochar is widely used for water and soil remediation due to its local availability and low production costs. However, its effectiveness depends on the physicochemical properties related to the raw material and pyrolysis temperature, as well as the environmental conditions where it is used. Additionally, biochar is susceptible to natural aging caused by changes in soil or sediment moisture, which can alter its redox properties and interactions with contaminants such as arsenic. Therefore, we are interested in conducting fundamental research on raw materials from grass types and their influence on the growth and production of QPM corn plants. In this research, we carried out laboratory content tests and field experiments. The treatments were: p0 control, p1 = 3 tons ha-1 biochar, p2 = 6 tons ha-1 biochar, p3 = 9 tons ha-1, p4 = 12 tons ha-1, p5 = 15 tons ha-1. The experimental results showed that the administration of biochar made from Arundo Spp. 12 tons Ha-1 can increase the effective growth and production of corn plants
The Effect of Application Compost and Biochar from Salak Leaf Sheaths on Carbon Status and Growth of Corn Plants (Zea mays L.) in Ultisol Soil Dystia winnie; Benny Hidayat
Jurnal Online Pertanian Tropik Vol. 11 No. 1 (2024): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v11i1.15629

Abstract

. Penelitian ini bertujuan untuk mengetahui perbedaan dan dosis terbaik aplikasi pelepah daun salak dalam bentuk kompos maupun biochar pada status karbon serta pertumbuhan tanaman jagung (Zea mays L.) di tanah Ultisol. Penelitian ini dilaksanakan di Rumah Kaca Fakultas Pertanian Universitas Sumatera Utara, dimulai pada bulan Juni 2022 sampai Januari 2023. Rancangan yang digunakan pada penelitian ini adalah Rancangan Acak Kelompok Non Faktorial yang terdiri dari 4 ulangan dengan tingkat dosis bahan kompos pelepah daun salak dan biochar pelepah daun salak (20, 40 dan 60 ton/ha). Hasil penelitian menunjukkan bahwa aplikasi kompos dan biochar pelepah daun salak nyata meningkatkan status karbon pada masa inkubasi 20 hari serta pertumbuhan tanaman jagung di tanah Ultisol. Pelepah daun salak dalam bentuk kompos lebih baik dalam meningkatkan bahan organik dan pertumbuhan tanaman jagung, sedangkan pH H2O lebih baik pada pengaplikasian pelepah daun salak dalam bentuk biochar. Aplikasi pelepah daun salak dalam bentuk kompos dan biochar terbaik dalam meningkatkan status karbon serta pertumbuhan tanaman jagung terdapat pada dosis 60 ton/ha.
Exploration and Diseases Identification of the Leaf Spots on Palm Oil in Tapanuli Tengah Regency Raudha Anggraini Tarigan; Sinta Nauli Marbun; Abdul Rahman
Jurnal Online Pertanian Tropik Vol. 10 No. 3 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i3.15710

Abstract

Penyakit bercak daun adalah penyakit yang banyak ditemukan pada pembibitan kelapa sawit khusunya di Main-Nursery. Penelitan ini dilakukan untuk mengetahui jenis jamur penyebab penyakit bercak daun dan tingkat serangannya. Penelitian ini menggunakan metode purposive sampling dengan mengambil sampel bibit secara acak. Sampel ini diambil di 4 lokasi yakni di Kecamatan Maduamas, Maduamas Lama, Sirandorung, dan Kolang. Sampel diambil kemudian diisolasi dan diidentfikasi. Hasil penelitian menujukkan tiga jamur penyebab penyakit bercak daun yaitu, Curvularia sp, pestalotiopsis, dan Fusarium. Hasil penelitian intensitas serangan penyakit tertinggi yaitu di Lokasi Manduamas Curvularia sp dengan intensitas penyakit 54%.
Population and Intensity of Damage to Mosquito Bugs (Helopeltis spp.) in several Crystal Guava (Psidium guajava l.) Cultivation Techniques, Panti District, Jember Regency Wildan Muhlison; Tri Wahyu Saputra, Yoga; Yoga Anugrah Pamungkas
Jurnal Online Pertanian Tropik Vol. 10 No. 3 (2023): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v10i3.15831

Abstract

Jambu kristal (Psidium guajava L.) termasuk salah satu buah yang berpotensi untuk dikembangkan di Indonesia karena memiliki nilai ekonomi yang tinggi. Besarnya peningkatan jumlah produksi jambu kristal tidak terlepas dari berbagai faktor kendala dalam proses budidayanya. Hama menjadi salah satu masalah penting terhadap produksi jambu kristal baik dari segi kualitas maupun kuantitas. Hama kepik penghisap (Helopeltis spp.) merupakan hama yang memiliki peran penting dalam hal kerusakan yang ditimbulkan pada buah dan tunas muda dengan cara menusuk dan menghisap cairan bagian tanaman. Penelitian dilakukan pada tiga lokasi lahan tanaman jambu kristal yang berbeda-beda yang tersebar di Desa Kemiri. Pengamatan dilakukan pada bagian tunas daun, bunga, pentil buah dan buah besar. Hasil pengamatan populasi kepik penghisap (Helopeltis spp.) pada lahan tanaman jambu kristal di Desa Kemiri, Kecamatan Panti, Kabupaten Jember di lokasi lahan sampel pertama rata-rata sebesar 1.24 ekor per tanaman, pada lokasi lahan sampel kedua ditemukan rata-rata populasi sebesar 0.15 ekor per tanaman, dan pada lokasi lahan sampel ketiga ditemukan rata-rata populasi sebesar 0.05 ekor per tanaman. Hasil pengamatan populasi kepik penghisap (Helopeltis spp.) pada lahan tanaman jambu kristal di Desa Kemiri, Kecamatan Panti, Kabupaten Jember di lokasi lahan sampel pertama rata-rata sebesar 1.24 ekor per tanaman, pada lokasi lahan sampel kedua ditemukan rata-rata populasi sebesar 0.15 ekor per tanaman, dan pada lokasi lahan sampel ketiga ditemukan rata-rata populasi sebesar 0.05 ekor per tanaman. Berdasarkan hasil identifikasi pada ciri-ciri morfologi, dapat diketahui bahwa hama kepik penghisap (Helopeltis spp.) yang ditemukan di lokasi lahan tanaman jambu kristal di Desa Kemiri, Kecamatan Panti, Kabupaten Jember adalah Helopeltis antonii SignoretKata Kunci : Helopeltis spp., intensitas serangan, jambu kristal, populasi
Land Suitability Assessment Gambir Commodities (Uncaria gambir Roxb.) In Pakpak Bharat Distric Scale 1 : 50.000 Sebayang, Lukas
Jurnal Online Pertanian Tropik Vol. 11 No. 1 (2024): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v11i1.15868

Abstract

Gambier (Uncaria gambier Roxb.) is a cultivated plant regeneration in Pakpak Bharat. Gambir extract benefits as well as the pharmaceutical industry and traditional is quite interested so that market opportunities gambier quite open for the domestic market and abroad. Land potential and development opportunities gambir high enough, it is in the use of plantation area of 1,225 ha and optimization of dry land area of 16.049,6 ha (Pakpak Bharat in Figures, 2022). Gambier development in Pakpak Bharat tends to increase, so it is necessary to study the suitability of land to see the direction of the development of the appropriate location. This assessment was conducted by using ALES (Automated Land Evaluation System). SDPLE (Standard Procedure for Land Evaluation) data was imported to ALES program. Land evaluation result was show in spatial form. This form made by imported tabulation data to GIS (Geographical Information System) form. Suitability land maps (scale 1 : 250.000) present based on each commodities by ArcView program. Key words : Land Suitability, gambier, Pakpak Bharat
Purple Sweet Potato Flour Substitution And Fermentation Time In White Bread Modification Miranti; Muji Paramuji; Barus, Wan Bahroni Jiwar; M. Nuh; Faridhil Wafiq
Jurnal Online Pertanian Tropik Vol. 11 No. 2 (2024): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v11i2.15921

Abstract

The rapid development of noodle consumption in Indonesia provides this lesson that noodles are a type of food by needs or favorite Indonesian consumers, it could even be said that noodles have become an alternative food main after rice. The management of purple sweet potatoes is another alternative to consuming carbohydrates so that they can be processed into food products such as bread, pasta, noodles instant, etc. Utilization of sweet potatoes purple can also be substituted with wheat flour and is the first step in reducing the consumption of wheat flour, remembering that Indonesia is not a wheat-producing country which is the raw material for wheat flour, so it is an advantage because No need to import flour wheat. This research aims to find the best substitution for purple sweet potato with wheat flour and the best drying temperature in producing modified dry noodles. The design model used in this research was a completely randomized design (RAL) factorial consisting of two factors that is: Factor I (U = Substitution of purple sweet potato with wheat flour) consisted of 4 treatments namely: U1 (20%:80%), U2 (30%:70%), U3 (40%:60%), and U4 (50%:50%). Factor II (S = Drying Temperature) consists of 4 treatments, namely: S1 (65° C), S2 (70° C), S3 (75° C) and S4 (80° C). The parameter observed consists of rate water, rate ash, rate fat, organoleptic texture, taste, and color. The results of the research show that the substitution of purple sweet potato with wheat flour is influential and very significant (P>0.01) to rate water, rate ash, organoleptic texture, taste, and color but the effect is not significant (P<0.05) to rate fat. Temperature drying influences different very significantly (P>0.01) to rate water and rate ash. However influential no significant (P<0.05) on fat content, organoleptic texture, taste, and color. Interaction treatment is influential with no significance (P<0.05) for all parameters analyzed. To obtain noodles dry sweet potato purple which is quality good recommended for use 20% sweet potato purple, 80% flour wheat, and temperature drying 80° C.

Page 35 of 38 | Total Record : 377

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