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All Journal Bionatura Journal of Tropical Soils Agrovigor: Jurnal Agroekoteknologi Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan Jurnal Ilmu-Ilmu Pertanian Indonesia Jurnal Solum TERRA : Journal of Land Restoration Martabe : Jurnal Pengabdian Kepada Masyarakat Akta Agrosia Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS PublikA, Jurnal Ilmu Administrasi Negara Jurnal Pengabdian kepada Masyarakat Dewantara
Bandi Hermawan
University Of Bengkulu
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Social Sciences Other

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EVALUASI BERBAGAI DOSIS NITROGEN UNTUK TEKNIK PRODUKSI TANAMAN CABAI YANG MENGGUNAKAN MULSA Fahrurrozi -; Idarman Tarmizi -; Bandi Hermawan -
Bionatura Vol 11, No 2 (2009): Bionatura Juli 2009
Publisher : Direktorat Sumber Daya Akademik dan Perpustakaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.6 KB)

Abstract

Kebanyakan petani tetap menggunakan dosis pupuk nitrogen sesuai rekomendasi dalam produksi cabai dengan menggunakan mulsa plastik hitam perak. Hasil penelitian sebelumnya mengindikasikan bahwa penggunaan mulsa mampu mengurangi pencucian nitrogen. Dengan demikian, perlu upaya untuk mencari seberapa banyak penurunan nitrogen yang dapat diberikan kepada cabai yang diproduksi dengan menggunakan mulsa. Penelitian dilaksanakan di Kota Bengkulu dari Maret sampai September 2004 menggunakan rancangan acak kelompok lengkap dengan dua faktor dan tiga ulangan. Faktor pertama adalah jenis mulsa yang digunakan ; mulsa plastik hitam perak, mulsa jerami padi dan tanpa mulsa. Faktor kedua adalah dosis nitrogen ; 115 kg/ha (dosis rekomendasi), 103,5 kg/ha, 92 kg/ha, dan 80,5 kg/ha. Hasil penelitian menunjukkan bahwa tidak terdapat interaksi antara jenis mulsa dengan dosis nitrogen dalam meningkatkan atau menurunkan semua variabel yang diamati. Cabai yang ditanam dengan menggunakan mulsa jerami memiliki jumlah cabang dikotom yang lebih tinggi dibanding tanaman yang ditanam tanpa mulsa, tetapi tidak berbeda dengan cabai yang ditanam dengan mulsa plastik hitam perak. Meskipun tidak ada interaksi antara jenis mulsa yang digunakan dengan dosis nitrogen dalam meningkatkan atau menurunkan variabel yang diamati, penggunaan 80,5 kg/ha nitrogen (30 persen lebih rendah dari dosis rekomendasi) meningkatkan jumlah dan bobot buah tanaman cabai.Kata kunci : Mulsa plastik hitam perak, Capsicum annuum L., nitrogen.
IDIOTIPE KOPI ARABIKA TANAMAN BELUM MENGHASILKAN PADA LINGKUNGAN DATARAN RENDAH DAN MENENGAH - Alnopri; - Prasetyo; Bandi Hermawan
Agrovigor Vol 4, No 2 (2011): SEPTEMBER
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrovigor.v4i2.294

Abstract

Coffee is the second priority and is nationally leading commodity aimed to increase export  as well as  to improve added values of national production in order to gain high compatibility in the international level. The development of coffee plantation in Indonesia focuses on the increased proportion of arabica coffee. The technology offered is to establish the superior characteristics of robusta coffee (lowland habitats) and that of arabica coffee (highland habitats) into a single crop named robbica cofffee. The idiotype of arabica crops has not been studied at the low and moderate altitude of land.            The study uses a randomized block design arranged at a split-plot, where two altitude act as the main-plot (10 m and 500 m above sea level) and ten genotypes of arabica coffee as the sub-plot (five genotypes of arabica and five genotypes of robbica), with three replicates and four crops for each experimental unit. The sample crops are located  at the centre of the plot (two crops for each experimental unit). Variables observed are plant height (cm), stem diameter (mm), are of a couple of leaf (cm2), weight of a couple of leaf (gram), the number of stomata, the level of leaf greeness, the content of leaf chlorophile (A and B), and nitrate reductase activity.            Result of variance analysis showed that genotypes significantly affect plant height, stem diameter, area of a couple of leaf, weight of a couple of leaf, and the number of stomata. The level of leaf greeness, and the number of chlorophile (A and B) show insignificant responses genotypes. The study conclude that the idiotype of arabica coffee, i.e. that is having a combination of robusta and arabica performs better than pure arabica, the habitat of moderate altitude is more favourable than that lowland, and the cultivation of arabica at the moderate altitude requires a modification of enviroment by plantibg the shade plant from leguminosae family.
Vermicompost Buffering Capacity to Reduce Acidification of Pb and Cd Contaminated Inceptisols and Entisols Zainal Muktamar; Bandi Hermawan; Wulandari Wulandari; Priyono Prawito; Sigit Sudjatmiko; Nanik Setyowati; Fahrurrozi Fahrurrozi; Mochammad Chozin
JOURNAL OF TROPICAL SOILS Vol 26, No 1: January 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i1.1-9

Abstract

Contamination of  heavy metals on the soil leads to an increase in its acidity. Vermicompost application is commonly used to improve the properties of soil. The study was carried out to determine the reduction of the acidity in Pb and Cd contaminated soils under the application of vermicompost. Two laboratory experiments were set using Completely Randomized Design (CRD) with two factors. The first factor was soil samples, vis Inceptisols, and Entisols, and the second factor was the rates of vermicompost, consisted of 0, 5, 10, 15 g kg-1. The treatment combination was repeated three times. The soils were pretreated with 10 mg kg-1 Pb or Cd using Pb(NO3)2 and Cd(NO3)2. Three hundred kg soil sample was incorporated with vermicompost and placed in a 500 ml plastic bottle. The mixtures were incubated for eight weeks, and the moisture of the soil was maintained at field capacity. The acidity and soil temperature were monitored every week. The study indicated that Pb contaminated soil acidity increased to the sixth week of the incubation and decreased afterward. However, the acidity of Cd contaminated soil was consistently increased during the incubation. Treatment of vermicompost significantly lowered the acidity of both Pb and Cd contaminated soils. Contaminated Entisols had a higher response to the application of vermicompost than that of Inceptisols. This finding is significant in assessing acidity risk and possible management intervention for Pb and Cd contaminated soils.
RANCANG BANGUN PENINGKATAN PRODUKTIVITAS LAHAN SAWAH PADA KAWASAN DAS PADANG GUCI KABUPATEN KAUR Herwan Herwan; M. Faiz Barchia; Bandi Hermawan
Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan Vol. 1 No. 1 (2012)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.1.1.5918

Abstract

Beras adalah komoditas strategis karena menjadi makanan pokok  masyarakat Indonesia yang jumlahnya hampir mencapai 240 juta jiwa. Pertumbuhan penduduk yang tidak diimbangi dengan pertumbuhan produksi bahan pangan akan menimbulkan permasalahan pangan. Salah satu upaya yang harus dilakukan untuk mencegah timbulnya masalah ketersediaan pangan adalah mengoptimalkan penggunaan lahan pertanian dengan meningkatkan irigasi pada daerah aliran sungai sehingga indeks pertanaman dapat meningkat. Potensi pengembangan lahan pertanian tanaman pangan padi sawah yang telah dikembangkan di Kabupaten Kaur adalah seluas 7.867 Ha. Teknologi usaha tani dan pengolahan hasil, yaitu peningkatan sistem irigasi, pengelolahan tanah, pemupukan, penggunaan benih unggul, pengendalian hama-penyakit-gulma tanaman, perontokan padi, pengeringan gabah, penggilingan padi, dan lumbung padi harus dikembangkan untuk meningkatkan produktivitas lahan yang selama ini terkategori masih rendah (4,21 ton/ha) dibanding dengan produktivitas padi nasional dan potensi genetik masing-masing varietas yang ditanam pada persawahan di DAS Padang Guci. Fasilitasi peningkatan sarana-prasarana produksi dan pengolahan hasil harus ditingkatkan sesuai dengan rencana pengembangan yang disusun dalam rancang bangun peningkatan produktivitas lahan sawah di DAS Padang Guci. Kata kunci:  rancang bangun, produktivitas padi, DAS Padang Guci
ANALISIS KEBUTUHAN AIR BERSIH DOMESTIK KECAMATAN KEPAHIANG PADA PELAYANAN PDAM TIRTA ALAMI TAHUN 2019-2039 Movizar Apriandi; M Faiz Barchia; Bandi Hermawan
Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan Vol. 10 No. 1 (2021)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.10.1.18158

Abstract

Adapun tujuan dari penelitian ini adalah Untuk mengetahui jumlah penduduk yang dilayani sampai dengan tahun 2039 di Kecamatan Kepahiang; untuk mengetahui kebutuhan air yang di perlukan PDAM Tirta Alami dalam memenuhi kebutuhan air bersih sampai dengan tahun 2039 di Kecamatan Kepahiang; untuk mengetahui debit air puncak yang diperlukan selama 20 tahun peroide desain di Kecamatan Kepahiang; dan untuk mengetahui tarif jual air di Kecamatan Kepahiang. Proyeksi penduduk dilakukan dengan Metode Aritmatika; Metode Geometri; Metode Eksponensial; dan Metode Logaritma. Penelitian ini menggunakan metode Deskriptif kuantitatif. Hasil penelitian ini menunjukkan bahwa Jumlah penduduk yang akan dilayani sampai dengan 2039 di Kecamatan Kepahiang sebanyak 47.964 jiwa atau sebanyak 9.591 unit sambungan rumah. Kebutuhan air bersih yang diperlukan untuk meningkatkan pelayanan di Kecamatan Kepahiang selama 20 tahun antara lain total kebutuhan air rata – rata adalah sebesar 90,19 liter/detik; kebutuhan air maksimum adalah sebesar 108,23 liter/detik; dan kebutuhan air pada saat jam puncak adalah sebesar 180,38 liter/detik. Potensi air baku di Kecamatan Kepahiang adalah sungai musi dengan debit sebesar maksimum 22,0589 m3 /detik sedangkan debit minimum12,4765 m3 /detik. Dari jumlah debit air tersebut dapat mencukupi untuk memenuhi kebutuhan air Kecamatan Kepahiang.Besaran tarif jual air untuk melayani Kecamatan Kepahiang dengan asumsi keuangan dengan nilai bunga bank efektif sebesar 9%, bunga komersial sebesar 9,9%, inflasi pertahun 3 % dan kenaikan tarif 15% per dua tahun diperoleh tarif dasar air sebesar Rp 2.642,92 /M 3 Air curah..Kata Kunci : Kebutuhan air; Proyeksi Penduduk Tarif Air dan Kecamatan Kepahiang
KARAKTERISTIK BIOFISISK DAN SOSIAL EKONOMI YANG MEMPENGARUHI PRODUKTIVITAS LAHAN SAWAH PADA KAWASAN DAERAH ALIRAN SUNGAI PADANG GUCI KABUPATEN KAUR Dian Sari; Faiz Barchia; Bandi Hermawan
Naturalis: Jurnal Penelitian Pengelolaan Sumber Daya Alam dan Lingkungan Vol. 1 No. 1 (2012)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/naturalis.1.1.5914

Abstract

Pertumbuhan penduduk yang tidak diimbangi dengan pertumbuhan produksi bahan pangan akan menimbulkan permasalahan pangan. Salah satu upaya yang harus dilakukan untuk mencegah timbulnya masalah ketersediaan pangan adalah pemaksimalan penggunaan lahan pertanian, dengan meningkatkan irigasi pada daerah aliran sungai dan diversifikasi pangan sehingga indeks pertanaman pangan akan meningkat.  Penelitian ini dilakukan di empat wilayah kecamatan, yaitu Tanjung Kemuning, Kaur Utara, Padang Guci Hulu, Padang Guci Hilir,  pada Daerah Aliran Sungai Padang Guci,  Kabupaten Kaur.  Tujuan dari penelitian ini adalah untuk mendapatkan data tentang  produktivitas sumberdaya lahan sawah pada Daerah Aliran Sungai Padang Guci Kabupaten Kaur  dan data tentang  tingkat perlakuan usaha tani  padi sawah pada DAS tersebut. Hasil penelitian menunjukkan bahwa masyarakat  di daerah Aliran Sungai Padang Guci sangat tergantung pada lahan sawah,  yang ditunjukan dengan jumlah penduduk yang mayoritas bekerja sebagai petani. Produksi  padi sawah pada Daerah Aliran Sungai Padang Guci belum optimal,  sebagaimana terlihat dari hasil  rata-rata 4,21 ton/ha yang lebih rendah dari potensi hasil yang berkisar  5 ton/ha – 6,59 ton/ha, Karakteristik biofisik yang mempengaruhi produksi padi adalah varietas padi, irigasi   dan   pemupukan, sedangkan  karakteristik sosial ekonomi yang mempengaruhi produksi padi adalah umur petani dan tenaga   kerja. Kata Kunci: Karakteristik, Biofisik, sosial ekonomi, produktivitas lahan sawah.
EFFECTS OF COVER CROPS AND TILLAGE SYSTEMS ON SOIL PHYSICAL PROPERTIES OF COGONGRASS LAND Bambang Gonggo Murcitro; Bandi Hermawan; Dwi Anggraeni
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 7, No 1 (2005)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.7.1.44-50

Abstract

Amendment of soil physical properties on cogongrass field is required for crop production. Objective of this study was determine the physical properties of the soil that was previously populated by cogongrass as affected by cover crops and tillage systems. A split plot design was used to allocate the combinations of conventional tillage and no-tillage system with 5 species of cover crops. Results showed that the properties of soil physic were not affected by cover crop species. No-tillage resulted in lower bulk density, but higher porosity and organic content, compared to conventional tillage. 
DAMPAK SISTEM OLAH TANAH DAN MULSA TANDAN KOSONG KELAPA SAWIT TERHADAP PERTUMBUHAN, HASIL JAGUNG MANIS (Zea mays saccharata) DAN TATA AIR TANAH Andreas Junico Marulitua Situmorang; Bandi Hermawan; Hesti Pujiwati
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 21, No 2 (2019)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.21.2.68-74

Abstract

[IMPACT OF THE TILLAGE SYSTEM AND OIL PALM EMPTY FRUIT BUNCH MULCH ON GROWTH, YIELD OF SWEET CORN (Zea mays saccharata) AND GROUNDWATER SYSTEM].  This study aims to determine the impact of land management and the use of oil palm empty fruit bunches (TKKS) mulch. This research was conducted from August to October 2018, arranged in a split plot design with two factors. As a first factor, land management consists of unprocessed, plowed, and plowed and harrowed. The treatment of oil palm empty fruit bunches mulch as the second factor consisted of no mulch, 9 tonnes/ha of mulch, 12 tonnes/ha of mulch, and 15 tonnes/ha of mulch. Plant variables observed consisted of plant height, stem diameter, number of leaves, fresh plant weight, plant dry, ear weight, ear length, ear diameter. Soil variables observed were the redistribution of groundwater and infiltration. The results showed no significant interaction between the tillage system and the application of oil palm empty fruit bunch mulch on all observed variables. Treatment without tillage or mulch dose of 12 tons/ha can provide growth and yield of sweet corn plants better than other treatments. The highest water content and infiltration rate were obtained from the dosage of oil palm empty bunches mulch 15 tons/ha. Soil cultivation by plowing and harrowing produces the highest infiltration rate compared to lower tillage intensities. About 18% to 42% of the diversity of growth and yield of sweet corn plants have a significant relationship with the diversity of groundwater.
MONITORING KADAR AIR TANAH MELALUI PENGUKURAN SIFAT DIELEKTRIK PADA LAHAN JAGUNG Bandi Hermawan
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 7, No 1 (2005)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.7.1.15-22

Abstract

This research aims to monitor soil water content in the field through the measurement of the electrical impedance during the early period of corn growth in the dry season. Two levels of tillage and four types of mulch were arranged at a split plot design with three replications. Part of experiment plot was cultivated twice and the other part was not cultivated. Each main plot was then divided into four sub-plots of 3 x 4 m each of wich was applied with 100% imperata mulch, 80% imperata and 20% kerinyu mulch, 50% imperata and 50% kerinyu, or 100% kerinyu. Two sets of wire, where the lowest 10 cm part was not isolated, were inserted into 10 and 20 cm soil depth therefore they measured the electrical impedance at the 0-10 and 10-20 cm soil layers. The electrical impedance values were measured using the digital ohm-meter that produce the electrical current at frequency of 1 kHz. Results show that the measured electrical impedance values have a very high sensitivity to the fluctuation of soil water content in the field. When calibrated to the same soil, the values can be transformed into water content values. During the measurement period, the cultivated soil is consistently drier at the 0-10 depth and wetter at the 10-20 depth compared to the uncultivated soil. The combination of 50% imperata and 50% kerinyu mulch maintains higher soil water content uring the dry season compared to other combinations. The research suggests that monitoring of soil water content can be conducted directly in the field through the measurement of electrical impedance.
Effects of Arbuscular Mycorrhiza Fungi and Coffee Pulp Compost in Improving Soil Water Uptake by Chilli Around the Permanent Wilting Point Conditions Ingri Dayana; Bandi Hermawan; Yudhi Harini Bertham; Dwi Wahyuni Ganefianti
TERRA : Journal of Land Restoration Vol 3, No 1 (2020)
Publisher : Department of Soil Science, Faculty of Agriculture, University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (983.959 KB) | DOI: 10.31186/terra.3.1.23-26

Abstract

Soil water availability to the plants is a range of water content between the field capacity and the permanent wilting point (PWP) conditions. The PWP is defined as the lower limit of soil water content that the plant can extract water from the soil as indicated by the symptoms of wilting plants. This is because plant roots are unable to penetrate the soil micropores that contain the water.  The study aims to analyze the effects of arbuscular mycorrhizal fungi (AMF) and compost in enhancing soil water absorption by the plant when the water content is close to the permanent wilting point. Four doses of AMF (0, 5, 10 and 15 g.plant-1) and three doses of coffee pulp-made compost (0, 5 and 10 ton.ha-1) were arranged according to a randomized complete block design with three replicates. Results showed that the application of AMF significantly enabled the plant to improve water uptake when the soil water content was about at the permanent wilting point conditions. The AMF addition of 15 g.plant-1 significantly prolonged the growing period of chili to wither and the plant showed the wilting symptoms at the soil water content of 5 to 7% lower than the no-AMF plants. Improved water uptake under water stress conditions was attributed to increases in the root colonization by AMF.
Co-Authors - Alnopri - Prasetyo AGUS SUSATYA Agustian, Indra Alnopri . Andreas Junico Marulitua Situmorang Bambang Gonggo Murcitro Bambang Sulistyo Bambang Sulistyo Benny Bayu Prabowo Bieng Brata Chosin, Muhammad Chozin, Mochammad Dedi Saputra Dian Sari Dismini Arti Dwi Anggraeni Dwi Wahyuni Ganefianti Elsa Lolita Putri Esi Asyani Listyowati Evira Khairunisa Putri Fahrurrozi - Fahrurrozi Fahrurrozi Fahrurrozi Fahrurrozi Fahrurrozi Fahrurrozi Faiz Barchia Gusmara, Herry Haryaningsih, Sri Hasanudin Hasanudin Hasaanudin Hasanudin Hasanudin Hata Dahlan Herman, Welly Heru Widiyono, Heru Herwan Herwan Hery Suhartoyo Hesti Pujiwati Hindarto, Kanang Setyo Idarman Tarmizi - Impetus Hasada Windu Sitorus Indra Agustian Indra Agustian Ingri Dayana Kartika Ningtias Lusi Afriana M Faiz Barchia M Mustopa Romdhon M. Faiz Barchia M. Faiz Barchia M. Faiz Barchia Maemunah Merakati Handajaningsih Mochammad Chozin Movizar Apriandi Muhammad Chosin Muhammad Faiz Barchia, Muhammad Faiz Nanik Setyowati Nanik Setyowati Nanik Setyowati Nur Fitriani NUR FITRIANI Nurwanto, Ahmad Pajrina Pajrina Permata, Nathasya Vira Prawito, Priyono Priyono Prawito Priyono Prawito Putri, Elsa Lolita Saryoto Saryoto Satria Putra Utama Satria Putra Utama Sigit Sudjatmiko Sigit Sudjatmiko, Sigit Sigit Sujatmiko Suharyanto Sujatmiko, Sigit Sumardi Sumardi Teguh Adiprasetyo Teguh Adiprasetyo Utami, Wanda Afrilia Vinni Lovita Welly Herman Welly Herman Welly Herman Welly Herman Welly Herman Wendra Kesuma Wijaya Wulandari Wulandari Wulandari Wulandari Yudhi Harini Bertham Zainal Muktamar Zainal Muktamar Zainal Muktamar Zainal Muktamar