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INDONESIA
Jurnal Agrotropika
Published by Universitas Lampung
ISSN : 02167662     EISSN : 27457737     DOI : 10.23960
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Scientific article dealing with broad aspects of tropical agronomy including crop production, horticulture, plant pests and diseases, post-harvest, sustainable agriculture, soil science, climatology, ecology, biodiversity, and ethno-agronomy.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 252 Documents
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Pertumbuhan Metarhizium rileyi dengan Penambahan Biji Sirsak dan Umbi Gadung untuk Mendukung Laju Pertumbuhan Cendawan Entomopatogen Safira Nurmala Senja; Lutfi Afifah; Sugiarto Sugiarto; Anik Kurniati
JURNAL AGROTROPIKA Vol 22, No 1 (2023): Jurnal Agrotropika Vol 22 No 1, Mei 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v22i1.7452

Abstract

Mikroorganisme yang dapat dimanfaatkan sebagai agens pengendalian hama secara hayati salah satunya adalah cendawan entomopatogen Metarhizium rileyi. Penambahan ekstrak biji sirsak dan umbi gadung sebagai media alternatif yang kaya akan nutrisi mampu memengaruhi pertumbuhan cendawan entomopatogen M. rileyi. Penelitian ini bertujuan untuk mendapatkan media pertumbuhan terbaik cendawan M. rileyi yang dicampur dengan ekstrak biji sirsak dan umbi gadung. Metode yang digunakan adalah metode eksperimental dan rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) faktor tunggal yang terdiri dari 7 perlakuan dan diulang 4 kali. Perlakuan tersebut antara lain Kontrol (PDA), PS1 (PDA + ekstrak biji sirsak 1 ml/l), PS3 (PDA + ekstrak biji sirsak 3 ml/l), PS5 (PDA + ekstrak biji sirsak 5 ml/l), PG1 (PDA + ekstrak umbi gadung 1 g/l), PG3 (PDA + ekstrak umbi gadung 3 g/l), PG5 (PDA + ekstrak umbi gadung 5 g/l). Hasil yang dicapai dari penelitian ini adalah penambahan ekstrak biji sirsak dan umbi gadung ke dalam media tumbuh M. rileyi memberikan pengaruh yang tidak nyata terhadap diameter koloni 21 hsi dengan rata-rata diameter koloni berkisar 8,95-9,00 cm, sedangkan hasil analisis regresi dan waktu inkubasi selama 21 hari berpengaruh nyata terhadap laju pertumbuhan koloni M. rileyi sebesar 44% hingga 77%. Hubungan laju pertumbuhan koloni M. rileyi dengan waktu inkubasi pada semua perlakuan menunjukkan nilai R2 sebesar 0,44 hingga 0,77. Media paling efektif untuk pertumbuhan cendawan M. rileyi adalah media PDA dengan ekstrak umbi gadung 1 g/l dengan diameter koloni 9,00 cm.
Pengaruh Ekstrak Daun Senduduk Bulu (Clidemia hirta L.) terhadap Perkecambahan dan Pertumbuhan Gulma (Praxelis clematidea) Andriani Dwi Lestari; Hidayat Pujisiswanto; Herry Susanto; Nanik Sriyani
JURNAL AGROTROPIKA Vol 22, No 1 (2023): Jurnal Agrotropika Vol 22 No 1, Mei 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v22i1.7370

Abstract

Weeds are plants whose existence is not expected by farmers because they interfere with cultivated plants. But there are weeds that can produce phenolic compounds such as Clidemia hirta L which can be used as bioherbicides. This study aims to determine the effect of Clidemia hirta L. leaf extract on the germination and growth of Praxelis clematidea weeds. The research was carried out from June 2021 to September 2021 at the Weed Science Laboratory and Integrated Field Laboratory, Faculty of Agriculture, University of Lampung. This study used a completely randomized design (CRD) method with 6 treatments with concentrations of Clidemia hirta L leaf extract, namely 0; 1.5; 3.0; 4.5; 6.0; and 7.5%. Each treatment was repeated 6 times to obtain 72 experimental units. The observed variables are germination, crown height, root length, dry weight, and weed poisoning level. The data obtained were analyzed by analysis of variance and continued with the Least Significant Difference Test (LSD) at the 5% level. The results showed that the germination of Praxelis clematidea weed was significantly inhibited by the treatment of Clidemia hirta L leaf extract with a concentration of 1.5; 3.0; 4.5; 6.0; and 7.5%. While concentrations of 3.0%, 4.5%, 6.0%, and 7.5% Clidemia hirta L. leaf extract  inhibited the growth of Praxelis clematidea weeds in the greenhouse. Key words:  Clidemia hirta L., extract, Praxelis clematidea, germination, growth
Aplikasi Formulasi Bahan Pembenah Tanah terhadap Beberapa Sifat Kimia Tanah Berpasir dan Produksi Tanaman Padi Aprilia, Intan Bella; Sasongko, Purnomo Edi; Siswanto, Siswanto
JURNAL AGROTROPIKA Vol 23, No 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8342

Abstract

Sandy soil is part of the soil fraction with low nutrient content, organic matter, and cation exchange capacity. This is due to the leaching process so that nutrients are easily lost. The research aimed to improve the chemical characteristics of sandy soil and rice crop production due to the application of humic acid and silica. This research used of Completely Randomized Design method using soil amendment materials, namely humic acid (A) at the of 60 kg/ha and silica (S) at the of 5 tons/ha consisting of 6 combinations of comparisons repeated 4 times. Variables of analysis parameters include pH, cation exchange capacity, organic matter, N-NH4+, N-NO3- and rice crop production. The data obtained were analyzed by analysis  of variance (ANOVA). If the results showed a significant effect, it was continued with the Honestly Significant Difference (HSD) test at the 5% level. The results showed that the application of soil amendment in the from humic acid and silica with various treatments on sandy soil was only able to improve CEC by 3,18% and Organic-C by 0,08%. In contrast soil pH and N-available didn`t give significant results in improving soil chemical properties and rice crop production. It`s recommended to conduct further research on the dose used in soil amendments so that it can effect nitrogen parameters and rice crop production in sandy soil.  Keywords: humic acid, silica, sandy soil
Pengaruh Posisi Daun dan Kombinasi BAP dengan NAA Terhadap Perkembangan Eksplan Jaringan Daun Sansevieria downsii jannah, ifathul; Nurhidayah, Tengku
JURNAL AGROTROPIKA Vol 23, No 2 (2024): Jurnal Agrotropika Vol 23 No 2, Oktober 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i2.8473

Abstract

Perbanyakan tanaman Sansevieria downsii secara kultur in-vitro dapat menghasilkan banyak tanaman unggul dalam waktu yang relatif singkat. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh posisi daun, kombinasi BAP dengan NAA dan kombinasi kedua faktor pada perkembangan eksplan S. downsii serta mencari kombinasi perlakuan yang terbaik untuk perkembangan eksplan S. downsii. Penelitian dilaksanakan secara eksperimen yang terdiri dari 2 faktor dengan 16 kombinasi perlakuan dan 3 ulangan. Faktor I adalah posisi daun asal eksplan yang terdiri dari 2 taraf, yaitu E1 (daun ke-2 dari pucuk) dan E2 (daun ke-4 dari pucuk). Faktor II adalah kombinasi BAP dengan NAA, yaitu Z1 (BAP 1 mg.l-1 + NAA 0 mg.l-1), Z2 (BAP 0 mg.l-1 + NAA 1 mg.l-1), Z3 (BAP 2 mg.l-1+ NAA 0 mg.l-1), Z4 (BAP 0 mg.l-1 + NAA 2 mg.l-1), Z5 (BAP 1 mg.l-1 + NAA 1 mg.l-1), Z6 (BAP 1 mg.l-1 + NAA 2 mg.l-1), Z7 (BAP 2 mg.l-1 + NAA 1 mg.l-1) dan Z8 (BAP 2 mg.l-1 + NAA 2 mg.l-1.Hasil penelitian menunjukkan bahwa faktor BAP dengan NAA dan kombinasinya dengan faktor posisi daun asal eksplan berpengaruh terhadap perkembangan eksplan S. downsii. Perkembangan eksplan terbaik dihasilkan oleh kombinasi eksplan yang berasal dari daun ke-4 dengan pemberian BAP 2 mg.l-1 + NAA 1 mg.l-1.
Efikasi Herbisida Parakuat Diklorida terhadap Gulma pada Kebun Kelapa Sawit (Elaeis guineensis Jack.) Belum Menghasilkan (TBM) Pujisiswanto, Hidayat; Putri, Athmarratu Wintani; Evizal, Rusdi; Sriyani, Nanik
JURNAL AGROTROPIKA Vol 22, No 2 (2023): Jurnal Agrotropika Vol 22 No 2, Oktober 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v22i2.7686

Abstract

Pertumbuhan gulma pada kebun kelapa sawit (Elaeis guineensis Jacq.) dapat merugikan pertumbuhan tanaman sehingga perlu dilakukan pengendalian. Salah satu alternatif untuk mengendalikan gulma dengan menggunakan herbisida parakuat diklorida. Penelitian ini bertujuan untuk mengetahui efikasi herbisida parakuat diklorida terhadap gulma pada tanaman kelapa sawit. Penelitian dilaksanakan pada bulan September-November 2022 di Desa Sido Mukti, Kecamatan Natar, Kabupaten Lampung Selatan dan Laboratorium Ilmu Gulma Universitas Lampung. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 6 perlakuan dan 4 ulangan. Perlakuan yang ditetapkan yaitu Parakuat diklorida 276 g/l dosis 621 g/ha, Parakuat diklorida 276 g/l dosis 828 g/ha, Parakuat diklorida 276 g/l dosis 1.035 g/ha, Parakuat diklorida 276 g/l dosis 1.242 g/ha, penyiangan manual dan Kontrol (tanpa pengendalian gulma). Uji homogenitas ragam data dilakukan dengan uji Barlett, uji aditivitas dengan menggunakan uji Tukey. Jika syarat asumsi memenuhi, maka data dianalisis dengan sidik ragam dan untuk menguji perbedaan nilai tengah dilakukan dengan uji Beda Nyata Terkecil (BNT) pada taraf 5%. Hasil penelitian menunjukkan Herbisida parakuat diklorida pada dosis 621 g/ha – 1.242 g/ha efektif mengendalikan pertumbuhan gulma total, gulma golongan daun lebar, gulma dominan Praxelis clematidea, Borreria alata, dan Paspalum conjugatum. Sedangkan pada taraf dosis 828 g/ha – 1.242 g/ha efektif mengendalikan gulma golongan rumput, gulma dominan Digitaria ciliaris, dan Eleusine indica. Koefisien komunitas (C) pada 4 dan 8 minggu setelah aplikasi menunjukkan nilai < 75% yang menunjukkan perbedaan antar komunitas perlakuan. Aplikasi herbisida parakuat diklorida pada piringan tanaman kelapa sawit belum menghasilkan tidak menimbulkan keracunan pada tanaman kelapa sawit. Kata kunci: Fitotoksisitas, herbisida, parakuat diklorida, gulma, kelapa sawit
Pengaruh Modifikasi Media Tanam Hidroton dan Zat Pengatur Tumbuh terhadap Produktivitas Tanaman Pakcoy (Brassica rapa L.) Secara Hidroponik Sistem Wick Nabila, Nila Anjali; Purbajanti, Endang Dwi; Budiyanto, Susilo
JURNAL AGROTROPIKA Vol 23, No 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8091

Abstract

The quality of pakcoy plants in hydroponic cultivation is influenced by the planting medium and the growth regulators given to the leaves of pakcoy plants to get good plant results. The aim of the research was to examine the effect of modifying hydroton planting media by providing plant growth substances concentrations on plant growth and production. This research uses 3 x 4 Factorial Complately Random Design with 3 replications. The first factor for modification of hydroton planting media includes hydroton (M0), hydroton+cocopeat (M1), hydroton+charcoal husk (M2), the second factor PGR concentration includes o ml/liter (H0), 2 ml/liter (H1), 4 ml /liter (H2), 6ml/liter (H3). Data were analyzed using Range Analysis and tested further using DMRT (Duncan Multiple Range Test) at the 5% level. The research results showed that there was an interaction effect between modified hydroton planting media and PGR concentration on leaf width and leaf area parameters. The hydroton planting media modification treatment had a significant effect on all parameters except root length.  Keywords : cocopeat, hidroton, modification, pakcoy
Populasi dan Biomassa Cacing Tanah Akibat Aplikasi Biochar dan Kotoran Ayam di Tanah Ultisol pada Pertanaman Jagung (Zea mays L.) Musim Tanam Ke-3 Arjuana, Danang; Arif, M.A. Syamsul; Prasetyo, Dedy; Dermiyati, Dermiyati; Septiana, Liska Mutiara; Lumbanraja, Jamalam
JURNAL AGROTROPIKA Vol 23, No 2 (2024): Jurnal Agrotropika Vol 23 No 2, Oktober 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i2.8140

Abstract

Ultisols have problems with soil organic matter and low nutrients, that making soil fertility low. Population and earthworm biomass is one indicator of the fertility level of a soil. Efforts to increase soil fertility can be done by giving biochar and chicken manure. This study aims to study the effect of biochar and chicken manure application on earthworm population and biomass and study the correlation between earthworm population and biomass with soil properties. This research uses a non-factorial Group Randomized Design (RAK) with 4 groups and 4 treatments, namely, B0 = control, B1 = biochar 5 tons ha-1, B2 = chicken manure 5 tons ha-1, and B3 = biochar 5 tons ha-1 + chicken manure 5 tons ha-1. The data was analyzed for variance, followed by a 5% BNT test, as well as a correlation test between earthworm population and biomass with supporting variables. The results showed that the application of biochar and chicken manure had no effect on earthworm population and biomass at the entire time of observation. There is a negative correlation between soil water content with earthworm populations and soil temperature with earthworm biomass. There is a positive correlation between soil pH with earthworm populations and biomass, but there is no correlation between earthworm populations and biomass with corn crop production components. Two families of earthworms found in the research area are Megascolecidae and Glossoscolecidae. Key words: Glossoscolecidae, Megascolecidae, soil ameliorant, Ultisol
Populasi dan Keanekaragaman Fungi Mikoriza Arbuskular pada Rizosfir Tanaman Lada Monokultur dan Polikultur Sari, Oktafia; Rini, Maria Viva; Evizal, Rusdi; Karyanto, Agus
JURNAL AGROTROPIKA Vol 23, No 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8593

Abstract

Arbuscular mycorrhizal fungi (AMF) is a type of fungus that comes from the endomycorrhizal group, these fungi have the ability to form symbiosis with almost 90% of higher plant species. Population and diversity of AMF are influenced by biotic factors and abiotic factors. This research aims to determine the differences in population, diversity and dominant types of AMF in the rhizosphere of pepper planted in monoculture and pepper in polyculture. The soil samples were taking from monoculture and polyculture pepper plantations in Air Naningan District, Tanggamus Regency. The AMF population was tested using the One way Annova test. Culture trapping was done using a factorial treatment with the first factor being the origin of the soil sample (K) and the second actor being the type of host plant (T). Treatments design used was randomize design (CRD). The results showed that the AMF population in polyculture pepper plantation soil samples was higher than monoculture pepper, based on the Shannon-Wiener Diversity Index, AMF diversity in monoculture pepper and coffee intercropping pepper plantations was higher than in cocoa intercropping pepper plantations, and the type of AMF was dominant. from the results of trapping culture with monoculture pepper garden soil samples, namely spores of the species code S7, in samples of coffee intercropping pepper plantations the code S7 is dominant, while in cocoa intercropping pepper plantations it is dominated by code S6. Keywords: Arbuscular mycorrhizal fungi, diversity, population.
Laju Pengisian Biji Tanaman Jagung (Zea mays L.) pada Sistem Tanam yang Berbeda Samsun, Achmad; Setiawan, Kukuh; Manik, Tumiar Katarina; Timotiwu, Paul Benjamin
JURNAL AGROTROPIKA Vol 23, No 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8784

Abstract

Jagung (Zea mays L.) merupakan bahan pangan alternatif setelah padi. Untuk memenuhi permintaan akan bahan pangan jagung perlu dilakukan inovasi agar kebutuhan tersebut tercukupi, salah satunya dengan melakukan pengujian mengenai sistem tanam yang berbeda pada budidaya jagung. Sistem tanam yang berbeda diduga akan menghasilkan jumlah populasi tanaman akan berbeda, sehingga jumlah bobot panen jagung akan berbeda pula. Jagung membutuhkan banyak cahaya dan sumber daya lingkungan lainnya untuk tumbuh. Apabila pertumbuhan tanaman baik, maka proses laju pengisian biji yang diduga berpengaruh pada hasil produksi tanaman akan berlangsung optimal. Oleh karena itu, dilakukan penelitian ini yang bertujuan untuk mengetahui pengaruh sistem tanam yang berbeda terhadap proses laju pengisian biji pada tanaman jagung dan mengetahui sistem tanam yang paling optimal untuk pertumbuhan vegetatif, laju pengisian biji, dan produksi tanaman jagung. Penelitian dilakukan pada tanaman jagung varietas NK Sumo yang ditanam dengan 3 sistem berbeda yaitu legowo, konvensional, dan zig-zag. Variabel penelitian terdiri dari 3 bagian pengamatan yaitu laju pengisian biji, pertumbuhan vegetatif, dan variabel lingkungan. Hasil pengamatan laju pengisian biji menunjukkan hasil yang fluktuatif pada setiap waktu pengamatan. Meskipun sebagian besar hasil penelitian menunjukkan bahwa sistem tanam tidak mempengaruhi hasil pengamatan, namun terlihat bahwa sistem tanam zig-zag menghasilkan hasil paling tinggi diantara sistem tanam lainnya. Sistem tanam terbaik adalah pada perlakuan sistem tanam zigzag dengan bobot biji basah dan bobot biji kering seberat 216,58gram dan 56,25 gramsistem tanam ini diharapkan dapat meningkatkan produksi tanaman jagung per hektar.
Efektivitas Bahan Penyiraman Leri dan Macam Media Tanam terhadap Pertumbuhan Microgreens Tanaman Bunga Matahari (Helianthus annuus L.) Rahayu, Fita Dwi; Kusumaningrum, Nora Augustien; Sulistyono, Agus
JURNAL AGROTROPIKA Vol 23, No 1 (2024): Jurnal Agrotropika Vol 23 No 1, Mei 2024
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v23i1.8262

Abstract

Microgreens are mini vegetable plants with high nutrition that are managed in a controlled growing environment. Management of microgreens requires sufficient water, nutrients, sunlight, planting media and air. The research aims to obtain the nutrient watering materials and media types for sunflower microgreens' growth. This research was carried out in Sumbang Bojonegoro village in October-December 2021. This research was prepared in a Completely Randomized Design (CRD) consisting of 2 factors, namely 2 levels of nutrient watering material, water (P1) and rice-washing water (P2), while 3 levels of planting media: husk charcoal (M1), sand (M2) and cocopeat (M3). The parameters observed were the percentage of germination, germination rate, number of normal and abnormal sprouts, sprout length, cotyledon width, sprout moisture content, sprout wet weight, and sprout dry weight. The observation data was analyzed used analysis of variance (ANOVA), with a further Least Significant Difference (LSD) test is carried out at a test level of 5%. Phytochemical tests for microgreens include chlorophyll, vitamin C and protein levels. The results showed that applying water and rice-washing water were not significantly different in terms of % germination and germination rate, while cocopeat media was more effective in terms of % germination, number of normal sprouts, % water content, wet weight of microgreens, length of sprouts and width of cotyledons. Highest phytochemical content % chlorophyll 23.60 mg/L (water+sand media); % Vitamin C content 59.40 mg/100g (water + husk charcoal media) and % protein content 3.47% (rice-washing water + sand media). Keywords: Planting media, rice-washing water, microgreens, phytochemical, watering

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