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INDONESIA
Jurnal Agro
Published by Universitas Islam Negeri Sunan Gunung Djati Bandung
ISSN : -     EISSN : 24077933     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agro aims to provide a forum for researches on agrotechnology science to publish the articles about plant/crop science, agronomy, horticulture, plant breeding - tissue culture, hydroponic/soil less cultivation, soil plant science, and plant protection issues.
Arjuna Subject : -
Articles 263 Documents
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Enhancing microbial population and biomass of water spinach grown in tailing and inceptisols by manure amendment Hindersah, Reginawanti; Suryatmana, Pujawati; Herdiyantoro, Diyan; Hamdani, Jajang Sauman
Jurnal AGRO Vol. 11 No. 2 (2024)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/39611

Abstract

The impact of tailings accumulated on agricultural land is the loss of soil profile and decreased soil quality, making plants difficult to grow. This study aimed to observe the effect of cow dung manure (CM) doses to gold mine tailings on total fungal and bacterial populations of soil surrounding roots and water spinach biomass and to analyze the correlation between fungal and bacterial populations with water spinach growth parameters. The experiment was designed in a randomized block design with five treatments and five replications. The treatments included without CM (control) and 5, 10, 15, and 20% of CM in tailing. Similar treatments were added to plants grown in mineral soil, i.e. Inceptisols. The results determined the retarded plant growth in tailing compared to that in Inceptisols. The plant grown in tailing was more responsive to manure amendment. The CM increased total fungal and bacterial populations in the soil around the roots, plant height, leaf number, stem thickness, wet weight, and dry weight of intact plants. Applying 5% of CM caused better growth of water spinach than other treatments. Total fungal and bacterial populations were strongly correlated with water spinach height and dry weight. ABSTRAK Dampak negatif penumpukan tailing di lahan pertanian adalah hilangnya profil tanah dan penurunan kualitas tanah sehingga tanaman sulit tumbuh. Penelitian ini bertujuan untuk mengobservasi pengaruh pemberian dosis pupuk kotoran sapi (PKS) pada tailing tambang emas terhadap populasi jamur dan bakteri total biomassa kangkung darat (Ipomoea reptans (L.) Poir.) serta menganalisis korelasi antara populasi jamur dan bakteri di tanah sekitar perakaran dengan parameter pertumbuhan kangkung. Percobaan pot di rumah kaca disusun dalam rancangan acak kelompok dengan lima perlakuan dan lima ulangan. Perlakuan percobaan adalah tanpa dan dengan penambahan 5, 10, 15 dan 20% PKS ke dalam tailing. Perlakuan yang sama diberikan pada tanaman kangkung dengan tanah Inceptisol. Hasil percobaan menunjukkan bahwa pertumbuhan kangkung di tailing terhambat dibandingkan di tanah Inceptisols, tetapi tanaman di tailing lebih responsif terhadap aplikasi PKS. Pupuk kotoran sapi mampu meningkatkan populasi jamur dan bakteri total di sekitar perakaran, tinggi tanaman, jumlah daun, ketebalan batang, bobot basah serta bobot kering tanaman di tailing. Pemberian 5% PKS lebih meningkatkan pertumbuhan tanaman kangkung dibandingkan dengan perlakuan lainnya. Populasi jamur dan bakteri masing-masing berkorelasi positif dengan hubungan yang sangat kuat dengan bobot kering serta tinggi tanaman kangkung. Percobaan ini menjelaskan bahwa bahan organik penting untuk memperbaiki kualitas tailing dan pertumbuhan tanaman.
Pengaruh metode aplikasi pupuk terhadap pertumbuhan dan hasil beberapa varietas bawang merah Pardono, Pardono; Erdhofin, Erdhofin; Triharyanto, Eddy; Manurung, Ida Rumia
Jurnal AGRO Vol. 11 No. 2 (2024)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/39673

Abstract

The demand for shallots continues to experience a significant increase in consumption. The use of appropriate varieties and improved nutrition is one of the efforts to increase shallot production. The purpose of the study was to determine the effect of fertilizer application methods on the growth and yield of several shallot varieties. The research was conducted in May-August 2023 in Ngringo Village, Jaten District, Karanganyar, Central Java with an altitude of 119.6 masl. This study used a factorial Complete Randomized Group Design (CRD) with two factors. Fertilizer application method was the first factor, namely: sowing and leaking. Varieties became the second factor, namely: Bima Brebes, Bauji, Tajuk, and Batu Ijo, resulting in eight treatment combinations with four replications. Observation parameters included plant height, number of leaves, fresh stalk weight, dry stalk weight, number of bulb, fresh weight of bulb, dry weight of bulb, dry weight of bulb per hectare, and bulb diameter. The results showed that the application of fertilizer by sowing can increase plant height 2-3 weeks after planting, fresh weight of bulbs, and dry weight of bulbs of shallots. The Tajuk variety produces plant height at 5 weeks, the number of leaves at 5 weeks, the fresh and dry weight of bulbs, the number of bulbs, and the fresh and dry weight stalk of shallots higher than other varieties. Fertilizer application by sowing can be applied to the Tajuk variety of shallots. ABSTRAK Kebutuhan bawang merah terus mengalami peningkatan konsumsi yang cukup signifikan. Penggunaan varietas yang tepat dan perbaikan nutrisi merupakan salah satu upaya untuk meningkatkan produksi bawang merah. Tujuan penelitian yaitu mengetahui pengaruh cara aplikasi pupuk terhadap pertumbuhan dan hasil beberapa varietas bawang merah. Penelitian dilaksanakan pada Bulan Mei-Agustus 2023 di Desa Ngringo, Kecamatan Jaten, Karanganyar, Jawa Tengah dengan ketinggian wilayah 119,6 mdpl. Penelitian ini menggunakan Rancangan Acak Kelompok Lengkap (RAKL) faktorial dengan dua faktor. Cara aplikasi pupuk menjadi faktor pertama, yaitu: ditabur dan dituangkan. Varietas menjadi faktor kedua, yaitu: Bima Brebes, Bauji, Tajuk, dan Batu Ijo, sehingga terdapat delapan petak kombinasi perlakuan yang diulang empat kali. Parameter pengamatan meliputi tinggi tanaman, jumlah daun, berat brangkasan segar, berat brangkasan kering, jumlah umbi per rumpun, berat segar umbi per rumpun, berat kering umbi per rumpun, berat kering umbi per hektar, dan diameter umbi. Hasil penelitian menunjukkan aplikasi pupuk dengan cara ditabur dapat meningkatkan tinggi tanaman 2-3 minggu setelah tanam (MST), berat segar umbi per rumpun, dan berat kering umbi per rumpun bawang merah. Varietas Tajuk menghasilkan tinggi tanaman pada 5 MST, jumlah daun pada 5 MST, berat segar dan kering umbi per rumpun, jumlah umbi per rumpun, serta berat brangkasan segar dan kering bawang merah lebih tinggi dibanding varietas lain. Pemberian pupuk dengan cara ditabur dapat diaplikasikan pada bawang merah varietas Tajuk.
Eksplorasi aktinobakteria indigenus untuk Pengendalian penyakit busuk tongkol oleh Fusarium verticillioides pada tanaman jagung Annisa, Tifla Fitri; Yanti, Yulmira; Nurbailis, Nurbailis
Jurnal AGRO Vol. 11 No. 2 (2024)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/39831

Abstract

Fusarium verticillioides is a fungus that causes cob rot disease in corn plants. Control of Fusarium verticilliodes by using biological agents that are antagonistic, namely actinobacteria. The research aims to obtain actinobacteria isolates that can control cab rot disease and increase corn growth. The research consisted of 3 stages, 1.) Isolation of indigenous actinobacteria and F.verticillioides. Variables observed were actinobacteria characteristics and biosafety test. 2.) Selection of indigenous actinobacteria to suppress the growth of fungus F. verticillioides. The observed variable is the percentage of inhibition. 3.) The ability of actinobacteria in controlling cob rot in corn plants with 12 treatments and 3 replications, 10 isolates (selection results of stage II), 1 positive control, and 1 negative control, arranged in a completely randomized design. The variables observed were disease development and plant growth. A total of 20 isolates of actinobacteria were obtained isolation results, and the results of biosafety tests obtained as many as 15 isolates of actinobacteria. Actinobacteria isolates that have the potential to suppress the growth of fungus F. verticillioides are actinobacterial isolates APPB BI7, APPB CS7, APPA BI6, APPA AS7, APBC AS7, APPB AS7, APBA AS7, ALKA AS7, APBB BI6, and ALKB AI7 with an inhibition of 62.22-68%. Actinobacteria isolates that have the potential in suppressing the development of cob rot disease and spurring the growth of corn corn plants are isolates with the code APPB BI7, APBB BI6, ALKB AI7, APPB CS7, APPB AS7, APPA AS7, APBA AS7, and APBC AS7. ABSTRAK Fusarium verticillioides merupakan jamur yang menyebabkan penyakit busuk tongkol pada tanaman jagung. Pengendalian Fusarium verticilliodes dengan menggunakan agensia hayati yang bersifat antagonis yaitu aktinobakteria. Penelitian bertujuan untuk mendapatkan isolat aktinobakteria yang dapat mengendalikan penyakit busuk tongkol serta meningkatkan pertumbuhan jagung. Penelitian terdiri atas 3 tahap, 1.) Isolasi aktinobakteria indigenus dan F.verticillioides. Variabel yang diamati adalah karakteristik aktinobakteria dan uji keamanan hayati. 2.) Seleksi aktinobakteria indigenus untuk menekan pertumbuhan jamur F. verticillioides. Variabel yang diamati adalah persentase daya hambat. 3.) Kemampuan aktinobakteria dalam mengendalikan busuk tongkol pada tanaman jagung dengan 12 perlakuan dan 3 ulangan, 10 isolat (hasil seleksi tahap I dan II), 1 kontrol positif, dan 1 kontrol negatif, disusun dengan Rancangan Acak Lengkap. Variabel yang diamati adalah perkembangan penyakit dan pertumbuhan tanaman. Diperoleh 20 isolat aktinobakteria hasil isolasi, dan hasil uji keamanan hayati diperoleh sebanyak 15 isolat aktinobakteria. Isolat aktinobakteria yang berpotensi dalam menekan pertumbuhan jamur F. verticillioides yaitu isolat aktinobakteria APPB BI7, APPB CS7, APPA BI6, APPA AS7, APBC AS7, APPB AS7, APBA AS7, ALKA AS7, APBB BI6, dan ALKB AI7 dengan daya hambat 62,22-68,06%. Isolat aktinobakteria yang berpotensi dalam menekan perkembangan penyakit busuk tongkol dan memacu pertumbuhan tanaman jagung adalah isolat dengan kode APPB BI7, APBB BI6, ALKB AI7, APPB CS7, APPB AS7, APPA AS7, APBA AS7, dan APBC AS7.

Page 27 of 27 | Total Record : 263

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