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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology JURNAL ILMU PERTANIAN Jurnal Ilmu-Ilmu Pertanian Indonesia JURNAL PENDIDIKAN TAMBUSAI Seminar Nasional Lahan Suboptimal Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Akta Agrosia
Usman Siswanto
Fakultas Pertanian, Universitas Bengkulu
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Public Health Social Sciences Veterinary Other

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Pengaruh Pemberian Pupuk Organik Cair Darah Sapi terhadap Hasil Tanaman Ubi Kayu Varietas Ketan Novianto, Esna Dilli; Oktasari, Wike; Syarifuddin, Syarifuddin; Siswanto, Usman; Anindyawati, Nurul
AGRIUM: Jurnal Ilmu Pertanian Vol 27, No 2 (2024)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v27i2.16816

Abstract

Pemupukan merupakan salah satu aktivitas penting dalam budidaya ubi kayu. Ironisnya aplikasi pupuk anorganik yang berlebihan ternyata berdampak negatif pada pertumbuhan tanaman. Pupuk Organik Cair (POC) dapat menjadi salah satu solusi untuk menggantikan pupuk anorganik. Namun, penggunaannya pada tanaman ubi kayu belum pernah dilaporkan. Penelitian ini bertujuan untuk mendapatkan dosis dan interval waktu pemberian POC yang tepat untuk meningkatkan hasil tanaman ubi kayu varietas ketan (Manihot esculenta Crantz.). Penelitian ini menggunakan rancangan acak kelompok lengkap dengan 2 faktor dan 3 ulangan sebagai blok. Faktor pertama adalah dosis POC darah sapi (0, 10, 20, dan 30 ml/tanaman), sedangkan faktor kedua adalah interval waktu pemberian POC darah sapi (3 minggu sekali, 6 minggu sekali, dan 9 minggu sekali). Data pengamatan diuji signifikansinya menggunakan analisis sidik ragam. Hasil penelitian menunjukkan bahwa semua perlakuan tidak memberikan pengaruh signifikan terhadap seluruh parameter pengamatan. Hal tersebut dikarenakan kandungan unsur hara POC darah sapi yang belum mencukupi kebutuhan tanaman, sifat POC yang mudah tercuci dan menguap, penyiraman yang tidak optimal, volume pengaplikasian yang terlalu sedikit, dan rentang waktu pemberian yang terlalu lama sehingga menyebabkan terganggunya perkembangan umbi. Dapat disimpulkan bahwa pemberian POC darah sapi pada penelitian ini belum mampu meningkatkan hasil tanaman ubi kayu.
ANTIMALARIAL MEDICINAL PLANTS USED BY TRADITIONAL HEALERS IN BENGKULU PROVINCE OF INDONESIA Susanti, Dian; Putra, Aditya Dwi Permana; Safrina, Devi; Wijaya, Nur Rahmawati; Adi, M Bakti Samsu; Mujahid, Rohmat; Rukmana, Rizal Maarif; Subositi, Dyah; Haryanti, Sari; Siswanto, Usman; Widiyastuti, Yuli
BIOTROPIA Vol. 31 No. 3 (2024): BIOTROPIA Vol. 31 No. 3 December 2024
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2024.31.3.2318

Abstract

Article Highlights- This research provides information on the use of medicinal plants for treating malaria among ethnic groups in Bengkulu Province.- This research was part of RISTOJA (Research on Medicinal Plants), national research conducted by the Ministry of Health of the Republic of Indonesia.- Several compounds found in medicinal plants used by traditional healers in the Bengkulu Province have been scientifically proven to be effective as antimalarial medication.AbstractMalaria is a disease with a high mortality rate and is still a significant problem in Indonesia and globally. One of the provinces in Indonesia that uses a diversity of medicinal plants to treat malaria is Bengkulu Province. This research aims to inventory and evaluate the use of medicinal plants as malaria drugs in Bengkulu Province. The research methods used were observation, interviews, and the collection of samples. Respondents were traditional healers from seven ethnic groups in Bengkulu. Plant species, use value (UV) parameters, fidelity level (FL), family use value (FUV), relative frequency of citation (RFC), and plant parts value (PPV) were analyzed. This study found 32 specific herbal concoctions and identified the use of 47 plant species in 28 families used by 20 healers in 6 ethnic groups of Bengkulu. The species Carica papaya, Peronema canescens, and Tinospora crispa have the highest use value, fidelity level, and relative frequency of citation. The Lamiaceae and Caricaceae families have the highest family use value (0.15). The leaves (43.9%) and barks (13.6%) were the most frequently utilized parts of medicinal plants to overcome malaria. Decoction was the method most widely used by traditional healers in Bengkulu to prepare conventional medicine formula.
Analisis dan Korelasi Genetik Pertambahan Sifat Agronomi Dengan Sifat Fisiologi Kopi Arabika Sumatera Budidaya Kawasan Pesisir Alnopri, Alnopri; Siswanto, Usman; Nurjannah, Uswatun; Panjaitan, Amisah Patel
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 “Revital
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Alnopri, A., Nurjanah, S. U., Panjaitan, A. P. (2024). Genetic analysis and correlation of agronomic traits with physiological traits of sumatra arabica coffee cultivated in coastal Areas. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembangg 21 Oktober 2024. (pp.591–599). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The coastal area is a transitional, namely the land is still influenced by marine activities, such as tides, sea breezes and saltwater seepage. Arabica coffee on Sumatra Island is cultivated in the highlands, namely in the Bukit Barisan Area. The Acc Research Land (Alnopri Coffee Centre) is located in a coastal area with an altitude of 10 meters above sea level. Acc land have a experimental garden arranged with a Randomized Block Design, by planting 9 genotype of Arabica Coffee from Sumatra Island and repeated 3 times. The long-term goal is to obtain information on adaptive genotype of cultivation in coastal areas. This experiment was conducted to determine growth patterns, analysis and genetic correlation of increase in agronomic and physiological traits. The study was carried out in the immature plant phase for two years, namely the 2023 dry season and the 2024 rainy season. The analysis carried out was by analysis of variance  and analysis of covariance. The results of the study showed that the growth pattern was normal and had increased from the previous year, the increase in the number of leaves and chlorophyll content differed between genotypes, and the genetic correlation between the increase in agronomic traits and physiological traits with a very weak to strong relationship. The conclusion of this study is 1). The growth pattern of agronomic traits (plant height and canopy area) of cultivated Arabica coffee in coastal areas is normal, 2). The increase in traits the number of internodes, the area of a pair of leaves, and chlorophyll content shows that the Mandailing and Sigararutang genotype are the best, and 3). The genetic correlation of the increase in agronomic traits and physiological traits that are strong correlation are the variables of canopy area and leaf pair area.
Bio-fortified Compost as A Substitute for Chemical N Fertilizer for Growth, N Accumulation, and Yield of Sweet Corn Marwanto, Marwanto; Wati, Shinta Puspita; Romeida, Atra; Handajaningsih, Merakati; Adiprasetyo, Teguh; Hidayat, Hidayat; Purnomo, Bambang; Murcitro, Bambang Gonggo; Siswanto, Usman
Akta Agrosia Vol 22 No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1).  They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 – 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost
VEGETATIVE GROWTH OF CASSAVA (Manihot esculenta Crantz.) ON THE LIQUID ORGANIC FERTILIZER OF LEGUMINOSAE SPECIES AND CONCENTRATION Usman Siswanto; Yuliana Anggraeni; Wike Oktasari; Murti Astiningrum
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.108-113

Abstract

Cassava is one of the food crops with continous increasing demand. This study aimed to investigate the response of vegetative cassava growth to the application of different concentrations and types of liquid organic fertilizers (LOF) from Leguminosae plants. The research was conducted from February 27 to June 27, 2022, in Kembanglimus Village, Borobudur District, and arranged factorially (4x3) using a Randomized  Completely Block (RCB). The first factor was the type of liquid organic fertilizer derived from Leucaena leucocephala, Mimosa pudica, and Arachis hypogaea. The second factor was the concentration of LOF, consisting of 0 mL/L, 15 mL/L, 30 mL/L, and 45 mL/L. Chlorophyll content was analyzed using spectrophotometer and protein contet of leaf and tuber were analyzed with Kjeldahl methods. The results demonstrated that type of LOI did not have a significant effect on all parameters. Liquid organic fertilizer from Leguminosae plants with 0 mL/L  concentration resulted in the highest number of roots. Type of liquid organic fertilizer from Leucaena leaf with a concentration of 24.95 mL/L gave the highest number of roots, while type of LOF of Mimosa pudica with a  concentration of 26.31 mL/L gave the highest number of branches. Type of liquid organic fertilizer of Arachis hypogaea with a  concentration of 45 mL/L resulted in the highest total chlorophyll content, leaf protein content, and protein content in the tubers
Meningkatkan Pemahaman Konsep Operasi Hitung Pecahan melalui Pendekatan Contextual Teaching and Learning (CTL) di Kelas V SD Negeri Batujaya VI Siswanto, Usman
Jurnal Pendidikan Tambusai Vol. 8 No. 3 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Penelitian Tindakan kelas (PTK) ini bertujuan meningkatan pemahaman konsep matematika dengan menggunakan suatu pendekatan Contextual Teaching And Learning (CTL) dalam suatu pembelajaran, Penelitian ini merupakan penelitian tindakan kelas (classroom action research) di kelas V dengan jumlah siswa 30 orang bertempat pada SDN Batujaya VI Kecamatan Batujaya Kabupaten Karawang yang terdiri dari tiga siklus dengan setiap siklus dua kali pertemuan dengan peserta didik. Peningkatan hasil belajar siswa dapat dilihat dari rata-rata test akhir yang dilaksanakan setiap siklus. Dengan perbandingan pada siklus II nilai rata-ratanya adalah 12.7 dan presentasenya adalah 3.33% dengan hasil siklus I, selanjutnya pada siklus III selisih hasil rara-rata siswa mencapai 7.8 dan presentasenya adalah 14% dengan hasil rata-rata siklus II. Dengan memperhatikan hasil yang dicapai melalui aktivitas siswa, hasil evaluasi serta pernyataan angket siswa penelitian ini menglami peningkatan pada setiap siklusnya, maka penelitian ini dinyatakan telah memenuhi kriteria ketuntasan yang ditetapkan oleh peneliti
INITIATION OF INTENSIVE NATIVE CHICKEN RAISING PATTERNS, THROUGH CONSTRUCTION OF COLONY CAGES ON WOMEN'S FARMER GROUP'S YARD Hardyta, Galy; Haris Septian, Mohamad; Siswanto, Usman; Dewi Setyowening, Natalia; Elisa, Elisa
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 6 No. 4 (2022): DESEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v6i4.1283

Abstract

Native chickens have a good potential for production and business opportunities in intensive rearing. Rural communities that have raised native chickens traditionally have difficulties in implementing the intensive rearing method directly. Changes in society can be achieved through a program of activities resulting from social planning which is implemented in stages, systematically, and sustainably. This Community Service Program was aimed to assist rural communities in adopting the intensive rearing method of native chickens gradually. This program was focused on counseling about the management of domestic chicken rearing and the application of the Cage management system by changing the rearing of native chickens from umbaran to colony cage system on the land owned by the Kelompok Wanita Tani (KWT). Counseling was able to provide additional insight and basic knowledge regarding the intensive rearing of native chickens. The colony cages construction on KWT land was the initial stage of adopting an intensive rearing system. Through this program, KWT members also discovered several problems, which can be solved by this program or by the further implementation of this community service program.
Co-Authors Adi, M Bakti Samsu Alnopri Alnopri, Alnopri Anindyawati, Nurul Atra Romeida Bambang Gonggo Murcitro Bambang Purnomo Dewi Setyowening, Natalia Dian Susanti Dyah Subositi Elisa Elisa Hardyta, Galy Hidayat Hidayat Marwanto Marwanto, Marwanto Merakati Handajaningsih Mohamad Haris Septian Murti Astiningrum Novianto, Esna Dilli Nurjannah, Uswatun Oktasari, Wike Panjaitan, Amisah Patel Putra, Aditya Dwi Permana Rizal Maarif Rukmana, Rizal Maarif Rohmat Mujahid, Rohmat Safrina, Devi Sari Haryanti Syarifuddin Syarifuddin Teguh Adiprasetyo Wati, Shinta Puspita Wijaya, Nur Rahmawati Wike Oktasari Yuli Widiyastuti Yuliana Anggraeni