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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 12 Documents
 1   2 
Search results for , issue "Vol 7, No 2 (2020)" : 12 Documents clear
Water saving technology package to improve shallot productivity for smallholder farmers in eastern Indonesia Ahmad Suriadi; Lia Hadiawati; Moh Nazam
Jurnal Agro Vol 7, No 2 (2020)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/6461

Abstract

Dryland usage for shallot cultivation is very potential in West Nusa Tenggara (NTB) Province Indonesia. However, its utilization is faced with various obstacles such as soil low fertility, limited water availability, and high pest and disease attacks. Currently, farmers apply flood and furrow irrigation methods for shallot cultivation in NTB Province, which may not suitable on dryland, especially on coarse texture soils. The purpose of this study was to obtain a package of water-saving technology to increase the productivity of shallots in the dryland of NTB. There were three treatments of technology packages tested laid as Randomized Block Design: A (Trichoderma sp., bio-urine liquid fertilizer, sprinkler irrigation; B (bio-urine liquid fertilizer, furrow irrigation); and C (farmer practice), involving farmer group members from planning to evaluating for the technology package that being tested. The amount of water used was measured using a water meter. The results showed that package A had achieved the highest shallot yield at 31.6 tons ha-1, which was 14% and 45% higher compared to package B and C, respectively. Package A was also able to save water irrigation for 62.1% and 95.8% compared to package B and C, respectively. Thus, sprinkler irrigation not only can increase shallot yield but also better in saving water irrigation. Penggunaan lahan kering untuk budidaya bawang merah di Nusa Tenggara Barat sangat potensial. Namun hal tersebut terkendala oleh beberapa masalah seperti rendahnya kesuburan tanah, terbatasnya air irigasi, dan tingginya gangguan hama dan penyakit. Saat ini, petani di NTB mengairi tanaman bawang merah dengan cara direndam atau leb yang belum tentu sesuai dengan kondisi lahan kering terutama pada tanah dengan tekstur berpasir. Tujuan dari penelitian ini adalah untuk mendapatkan paket teknologi hemat air yang dapat meningkatkan hasil dan pendapatan budidaya bawang merah di lahan kering. Ada tiga perlakuan paket teknologi yang ditata dengan rancangan acak kelompok yaitu A (Trichoderma sp., pupuk organik cair bio-urine, dan irigasi curah); B (pupuk organik cair bio-urine, dan pengairan leb), dan paket C (cara petani: pengairan leb). Penelitian ini melibatkan petani mulai dari perencanaan sampai evaluasi paket teknologi yang diujikan. Hasil penelitian menunjukkan bahwa paket A menghasilkan produksi tertinggi sebesar 31,6 t ha-1, atau 14% dan 45% ebih tinggi dari paket B dan C. Paket A juga mampu menghemat air irigasi sebanyak 62,1% dan 95,8% dibandingkan dengan paket B dan C. Dengan demikian, penggunaan irigasi curah mampu meningkatkan hasil dan menghemat air irigasi.
Bioaktivitas ekstrak biji bintaro terhadap kutu daun Aphis gossypii GLOVER dan pengaruhnya terhadap tanaman cabai Rial Mustiarif; Djamilah Djamilah; Nanik Setyowati; Agustin Zarkani
Jurnal AGRO Vol 7, No 2 (2020)
Publisher : Jurusan Agroteknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/8380

Abstract

Aphis gossypii Glover hama penting tanaman cabai, dapat dikendalian dengan menggunakan pestisida nabati. Penelitian bertujuan untuk mengevaluasi waktu aplikasi dan konsentrasi ekstrak kasar biji bintaro (Cerbera odollam G.) dalam mengendalikan A. gossypii Glover serta pengaruhnya terhadap pertumbuhan tanaman cabai. Penelitian menggunakan Rancangan Acak Lengkap, dua faktor dan tiga ulangan. Faktor pertama adalah waktu aplikasi ekstrak (waktu sebelum dan waktu setelah infestasi A. gossypii Glover). Faktor kedua adalah konsentrasi ekstrak bintaro (0%, 1%, 2%, 3%, 4% dan 5%). Hasil penelitian menunjukkan konsentrasi 1% ekstrak biji bintaro menyebabkan mortalitas kutu daunnya 68% sedangkan pada konsentrasi 3% mortalitasnya mencapai 90%. Ekstrak biji bintaro yang diberikan sebelum hama diinfestasikan menyebabkan mortalitas kutu daun 59,5% sedangkan jika diberikan setelah hama diinfestasikan mortalitasnya meningkat menjadi 77,6%. Nilai LC50 dan LC90 ekstrak biji bintaro diaplikasikan sebelum dan setelah hama diinfestasikan secara berurutan adalah 1,8%; 4,4%; 0,57% dan 2,8%. A. gossypii Glover yang diinfestasikan pada tanaman berumur 4 minggu dan disemprot dengan ekstrak biji bintaro pada konsentrasi 1% dapat menurunkan intensitas kerusakan pada hari ke tujuh setelah infestasi dan tidak berpengaruh terhadap jumlah daun, bobot segar maupun bobot kering tanaman cabai. Ekstrak biji bintaro dapat dikembangkan sebagai pestisida nabati untuk mengendalikan hama A. gossypii Glover pada tanaman cabai. Aphis gossypii Glover is an important sucking insect pest of the pepper (Capsicum annum L.), Can be controlled by using natural pesticides. The study aimed to evaluate the application time and concentration of Cerbera odollam G. seed extract in controlling A. gossypii and their effects on pepper, C. annum. Complete randomized design was used in this experiment, with two factors, and was repeated three times. The first factor was the time of application of the extract, consisting of before and after A. gossypii infestation. The second factor was the concentration of C. odollam extract (0%, 1%, 2%, 3%, 4% and 5%). The results indicated the C. odollam seed extract affected the mortality of A. gossypii. At a concentration of 1% of C. odollam seed extract, the mortality of A. gossypii was 68% while at a concentration of 3% the mortality reached up to 90%. C. odollam seed extract applied before infestation, the mortality of A. gossypii was 59.5% whereas, after the infestation, the mortality increased up to 77.6%. LC50 and LC90 extract of C. odollam seeds applied before and after infestation were 1.8%; 4.4%; 0.57% and 2.8% respectively. A. gossypii infested at 8 weeks old pepper and sprayed with C. odollam seed extract at a concentration of 1% lowered the crop damage on the seventh day after infestation. On the other hand, the application of C. odollam seed extract did not affect the number of leaves, fresh weight, and dry weight of pepper. This study indicate that C. odollam seed extract can be developed as a natural pesticide to control A. gossypii on pepper..

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