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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Agrikultura Journal of Tropical Soils Jurnal Pilar Sains JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Solum SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Eksplora Informatika Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Andalasian International Journal of Applied Science, Engineering, and Technology AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Prosiding Seminar Nasional Universitas Serambi Mekkah Journal Arunasita
Teguh Budi Prasetyo
Andalas University
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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PENGARUH PENGELOLAAN AIR TERHADAP KONSENTRASI BESI (Fe) PADA SAWAH BUKAAN BARU Teguh Budi Prasetyo; Ruhaimah Ruhaimah; Septi Angga Wardahana
Jurnal Solum Vol 3, No 1 (2006): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.946 KB) | DOI: 10.25077/js.3.1.8-18.2006

Abstract

Recently rice field in Ultisol has some problems, the most important thing is high concentration of Fe that can be toxic to the rice growth. The objective of this study was to determine the best water management to reduce concentration of Fe in recently rice field. The experiment was designed in completely randomized design with seven treatments and three replicates. The treatment consisted of continous water-logged, 1 week water-logged 1 week dried, 2 weeks water-logged 2 weeks dried, 3 weeks water-logged 3 weeks dried, 1 week dried 1 week water-logged, 2 weeks dried 2 weeks water-logged, 3 weeks dried 3 weeks water-logged. The results showed that the water management with water-logged and dried the soil could reduce Fe concentration about 720 1882 ppm. The best water management to reduce Fe concentration was 3 weeks water-logged 3 weeks dried with Fe concentration in the soil was 376 ppm. Key words : Water management, Iron, recently rice field
Humic Acid and Water Management to Decrease Ferro (Fe2+) Solution and Increase Productivity of Established New Rice Field . Herviyanti; Teguh Budi Prasetyo; Fachri Ahmad; Amrizal Saidi
JOURNAL OF TROPICAL SOILS Vol 17, No 1: Januari 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i1.9-17

Abstract

The purpose of this research was to gain a technological breakthrough in controlling Fe toxicity (Fe2+) on Ultisol in a new established rice field by using humic acid from rice straw compost and water management, so that optimal production of rice plants could be achieved. The experiment was designed using a 2 × 4 factorials with 3 replications in a split plot design. The main plot was water management consists of 2 levels: continuous and intermittent irrigation (2 weeks flooded and 2 weeks field capacity). Small plot was humic acid which was extracted from rice straw compost by NaOH 0.5 N which consists of 4 levels: 0, 200, 400, and 600 mg kg-1.  The results showed that applications of humic acid from 0 to 600 mg kg-1 that was followed by 2 weeks of intermittent irrigation decreased Fe2+ concentration. It was approaching levels that were not toxic to plants, with soil Fe2+ between 180-250 mg kg-1. The best treatment was found at the application of 600 mg kg-1 humic acid extracted from rice straw compost combined with 2 week flooded – 2 weeks field capacity of water management. Those treatment decreased Fe2+ concentration from 1,614 to 180 mg kg-1 and increased the dry weight of grain from 5.15 to 16.73 g pot-1 compared to continuous flooding and without humic acid application.
Pemanfaatan Tithonia Diversifolia pada Tanah Sawah yang Dipupuk P Secara Starter terhadap Produksi serta Serapan Hara N, P, dan K Tanaman Padi . Gusnidar; Teguh Budi Prasetyo
JOURNAL OF TROPICAL SOILS Vol 13, No 3: September 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i3.209-216

Abstract

The research of Tithonia diversifolia utilization in the paddy soil that was fertilized P-starter on yield and N, P, K uptake on rice crop, has been conducted from August to December 2005.  The objective of this research was to determine interaction between P-starter levels, and tithonia levels on production and N, P, K element uptake of rice crop. The research was pot experiment in the green house in factorial design 4 x 4.  First factor was 4 levels of tithonia with reduce dosage fertilizer aplied (T0 = 0 t tithonia + 200 kgUrea ha-1 + 75 kg KCl ha-1; T1= 2,5 t tithonia ha-1 + 150 kg Urea ha-1, without KCl; T2 = 5,0 t tithonia ha-1 + 100 kg Urea ha-1, without KCl; dan T3 = 7,5 t tithonia ha-1 + 50 kg Urea ha-1, without KCl).  The second factor was 4 levels of P-starter (0, 2, 4, and 6 kg P ha-1).  The result showed that combination T3 treatment and 2-4 kg P-starter ha-1 increased the grain yield 20,51-21,08 g pot-1 (18,65-19,21%). Effect of T3 treatment was not significant with T2 treatment on the grain yield.  The best interaction was T3 treatment on N and K uptake ((0,84 g pot-1 for N, dan 0,82 g pot-1 for K).  
The Properties of Humic Acids Extracted from Four Sources of Organic Matters and Their Ability to Bind Fe2+ at New Established Rice Field . Herviyanti; Teguh Budi Prasetyo; Fachri Ahmad; . Darmawan
JOURNAL OF TROPICAL SOILS Vol 15, No 3: September 2010
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2010.v15i3.237-244

Abstract

The Properties of Humic Acids Extracted from Four Sources of Organic Matters and Their Ability to Bind Fe2+ at New Established Rice Field (Herviyanti, TB Prasetyo, F Ahmad and Darmawan):  In order to identify the properties of humic acid extracted from four kinds of organic matters (a peat soil, a stable manure, a compost of rice straw and a municipal waste)  and their potentiality to bind Fe2+  at new established rice field, a series of experiment was done in Soil Laboratory Faculty of Agriculture, Andalas University Padang. First step was characterization of functional groups and other chemical properties of humic acids, and their reaction with Fe2+. The second step was to examine the ability of humic acids to bind Fe2+ solution at new established rice field by conducting incubation experiments.  The experiment used  a completely randomized design with three replications.  The 450 ppm Fe solution was treated with 0, 50, 100, 150, 200, 250, 300, 350, 400, and 450 ppm humic acids and incubated for 24 hours.  While top soil samples taken from Sitiung, West Sumatera were treated with 0,100, 200, 300, and 400 ppm humic acids, flooded with deionized water, and incubated for 6 weeks.  The result showed that   the functional group and other chemical characteristic of humic acid from rice straw compost and peat soil were better than those of manure and municipal waste compost. Functional group of both humic acids was dominated by COO-. High reactivity of the humic acid had been found when humic acids were added to Fe solution with ratio 1 : 1. Use of humic acid extracted from peat soil with the levels from 0 to 100, 200, 300, and 400 ppm decreased the Fe2+ concentration from 1.361 ppm to  910, 860, 831, and 776 ppm, respectively at new established rice field.  While the use of humic acid extracted from  rice straw compost with the same levels as above decreased the Fe2+ concentration  from 1361 to 770, 701, 612, and 600 ppm, respectively, after four weeks of flooding.
Pengembangan Durian Batu Busuak, Kelurahan Lambung Bukit, Kota Padang Hasmiandy Hamid; P.K. Dewi Hayati; Sutoyo Sutoyo; Etti Swasti; Aprizal Zainal; Teguh Budi Prasetyo; Panca Jarot Santoso
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 2 No 2 (2018)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.134 KB) | DOI: 10.25077/logista.2.2.45-51.2018

Abstract

ABSTRAK: Kampung Batu Busuk Kelurahan Lambung Bukit Kecamatan Pauh merupakan salah satu sentra produksi buah durian di Sumatera Barat.Walaupun nama durian Batu Busuk sudah terkenal dan banyak dicari oleh pencinta durian pada saat musim durian, namun belum ada upaya untuk mengangkat durian Batu Busuk untuk bisa dikenal lebih luas. Langkah awal untuk mengangkat nama durian Batu Busuk adalah membenahi identitas varietas durian Batu Busuk, karena sampai sekarang karakteristik dari durian Batu Busuk yang sesungguhnya tidak jelas.Tanaman yang sudah dikarakterisasi juga perlu diperbanyak agar kedepan, buah yang dihasilkan oleh kelurahan Batu Busuk adalah buah dengan karakter unggul tertentu. Masyarakat atau petani yang menanam durian juga perlu memiliki keahlian memperbanyak durian unggulnya. Penerapan ipteks yang dilakukan pada kegiatan pengabdian pada masyarakat ini menggunakan beberapa metode antara lain penyuluhan, demonstrasi aplikasi dan demplot pembibitan durian. Hasil kegiatan menunjukkan bahwa kegiatan penyuluhan yang dilakukan berhasil meningkatkan pengetahuan masyarakat Batu Busuk mengenai arti penting pendaftaran varietas durian. Kegiatan demplot pembibitan durian dan demonstrasi teknik sambung meningkatkan pengetahuan dan keterampilan masyarakat mengenai propagasi durian. Kata kunci: Durian ungggul, Pendaftaran varietas, Teknologi tepat guna, Teknik sambung Development of Durian Batu Busuak, Lambung Bukit Village, Padang CityABSTRACT: Batu Busuk area, Lambung Bukit Village, Pauh Subdistrict, is one area of the centers of durian fruit production in West Sumatra. Although the Batu Busuk durian is already well-known and is sought after by durian lovers during the durian season, there is no attempt to lift the Batu Busuk durian to be known more widely. The first step to lifting the Batu Busuk durian is to fix the varieties identity of the Batu Busuk durian because until now the characteristics of the real Batu Busuk durian are not clear. Plants that have been characterized also need to be propagated so that in the future, the fruit produced by the Batu Busuk village is a fruit with certain superior characters. The community or farmers who plant durian also need to have the expertise to increase their superior durian. The application of science and technology conducted in community service activities uses several methods including counseling, demonstrations of applicationand demonstration plots of durian nurseries. The results of the activity showed the extension activities conducted succeeded in increasing the knowledge of the Batu Busuk community regarding the importance of registering durian varieties. The activities of the durian nursery demonstration plot and demonstration of connection techniques can increase the knowledge and skills of the community regarding the propagation of durian.Keywords: Superior durian, Varieties registration, Appropriate technology, Connection technique
Ipteks Bagi Masyarakat Kelompok Tani Plasma Kabupaten Pasaman Barat Untuk Pengembangan Jagung Secara Intensif Di Lahan Sawit Replanting Dewi Hayati; Nur Afni Evalia; Teguh Budi Prasetyo
Jurnal Pengabdian Warta Andalas Vol 24 No 2 (2017): Warta Pengabdian Andalas
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

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Abstract

Penerapan ipteks yang dilakukan pada kegiatan pengabdian pada masyarakat dari Fakultas Pertanian tahun 2016 menggunakan beberapa metode antara lain penyuluhan dan diskusi, demonstrasi dan aplikasi alat/mesin pertanian, demplot, pendampingan dan evaluasi/monitoring. Hingga saat ini semua kegiatan penyuluhan telah dilakukan. Demplot saat ini sedang berada dalam masa pengeringan menunggu waktu panen, sedangkan transfer teknologi berupa alat mesin pertanian diberikan dalam bentuk alat tanam jagung dan mesin pemipil jagung. Pendampingan pemasaran juga dilakukan dengan menghubungkan kelompok tani dengan konsumen industri pakan ternak di kabupaten Lima Puluh Kota. Hasil demplot tanaman jagung di lahan sawit replanting dengan menggunakan alat tanam jagung, mesin pemipil dan mesin penebas batang jagung berhasil menurunkan biaya produksi dan pasca panen hingga sebesar Rp. 1.214.532 per ha.
PENGEMBANGAN UBI JALAR BERBASIS PENGELOLAAN LIMBAH ORGANIK DI KOTA PADANG PK Dewi Hayati; Sutoyo Sutoyo; Teguh Budi Prasetyo
Jurnal Pengabdian Warta Andalas Vol 25 No 1 (2018): Warta Pengabdian Andalas
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

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Abstract

Sweet potato cultivation has potential to support the home industry in Padang city. Theaims of this community service program were to transfer knowledge and technology inmanagement of organic waste from household and farmer field, to applied the organic fertilizerin sweet potato cultivation, and to increase the value added of sweeet potato tuber. The programwas conducted from March to October 2015 in Ikur Koto, Koto Tangah District, Padang, WestSumatra. The partners were the Kelompok Wanita Tani (KWT) Pagai and Kelompok Tani danTernak Parak Tanjung Jaya. The methods of technology transfer were socialization anddiscussion, training, demplot or demonstration plot and demonstration in creating severalproducts from sweet potato tuber. The outcomes obtained in the end of the program are theability of communities to produce organic fertilizers and biopesticide. The farmers are successto applied the organic fertilizer to substitute 25% synthetic fertilizer, and able to produceseveral products from sweet potato tuber.
Diseminasi Agroteknologi melalui Vertical Garden dalam Mewujudkan Program Adiwiyata di SMA Negeri 13 Padang Netti Herawati; Sanna Paija Hasibuan; Elara Resigia; Zulfadly Syarif; Teguh Budi Prasetyo
Warta Pengabdian Andalas Vol 26 No 4.a (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.26.4.a.239-245.2019

Abstract

SMA Negeri 13 Padang is one of the high schools in Padang, which has been the partner of the Faculty of Agriculture, Andalas University. Currently, the school is experiencing difficulties in developing the Adiwiyata program. The less than optimal use of the schoolyard becomes an obstacle in realizing this program. The vertical garden is a solution that can be applied in schools so that the yard's utilization can be done optimally. This activity aims to provide knowledge and understanding of the school regarding the vertical garden. This activity was carried out at SMA Negeri 13 Padang using survey methods, counseling, and demonstrations in making a vertical garden. Based on the activities carried out, the results obtained are 16% of the participants know about the vertical garden, and 84% of the participants do not learn the vertical garden technique yet. In the end of program, 80% of the participants understood the vertical garden technique and applied it in their respective classes. The knowledge and understanding of the participants increased by 64%.
Identifikasi Kualitas Fisik Tabung LPG 3 kg menggunakan Blob Detection dan Fitur Warna RGB to HSV Erwin Yudi Hidayat; Teguh Budi Prasetyo
Jurnal Eksplora Informatika Vol 9 No 1 (2019): Jurnal Eksplora Informatika
Publisher : Bagian Perpustakaan dan Publikasi Ilmiah - Institut Teknologi dan Bisnis STIKOM Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.275 KB) | DOI: 10.30864/eksplora.v9i1.269

Abstract

Pengguna gas LPG ukuran 3 kg meningkat setiap tahunnya. Perlu adanya perlindungan agar pengguna merasa aman. Perbaikan fisik tabung LPG 3 kg dilakukan untuk menjaga kualitas. Dalam proses perbaikan tersebut tabung mempunyai standar kelayakan dari warna, bentuk dan masa edar tabung. Dari segi warna tabung dikatakan layak jika tidak terdapat karat lebih dari 15%. Untuk menghindari subjektivitas, identifikasi kelayakan tabung dapat dilakukan menggunakan Blob Detection dan ekstraksi Red Green Blue (RGB) to Hue Saturation Value (HSV). Metode Blob Detection merupakan metode untuk menghitung hubungan suatu grup piksel sesuai dengan kategorinya. Total citra yang digunakan sejumlah 340 dengan format *.jpg, meliputi 160 citra latih, 60 citra kualitas layak sebelum tabung diperbaiki, 60 citra kualitas layak setelah tabung diperbaiki, serta 60 citra tidak. Diperoleh hasil akurasi 100% untuk citra kualitas layak setelah tabung diperbaiki, 73,33% untuk citra tabung kualitas layak sebelum tabung diperbaiki, dan 86,67% untuk kualitas tidak layak.
Application of Tithonia Compost as Alternative Synthetic Fertilizer Source N and K on Young Oil Palm Plantation Enita Enita; Hermansyah Hermansyah; Teguh Budi Prasetyo
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 4 No. 1 (2020)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.88 KB) | DOI: 10.29165/ajarcde.v4i1.40

Abstract

Currently, large oil palm plantations are cultivated on ultisol. Ultisol has various constraints in its utilization for the cultivation of plants, because it has high exchangeable Al, low pH, low soil organic nutrient contained, and soil nutrients such as N, P, K, Ca, Mg. Large quantities and continuous fertilizer are needed for a long time. To solve these problems required to look for alternative fertilizers. These alternative fertilizers are expected to reduce the use of synthetic fertilizers without decreasing production and are available forever. Efforts to produce that location organic matter are the right choice. Tithonia can be grown in the form of alley cropping at young palm plantations. A series of experiments have been conducted at Andalas University experimental farm in Padang, West Sumatra Province. This study used the Factorial design. The treatments are tithonia compost and Lime application. There are 3 rd compost doses in 3 replication each treatment. The experimental obtained that tithonia compost dosage 25% and 50% + 25% and 50% synthetic fertilizer were changed soil chemical properties such as increased 0.94 units soil pH, availability of nutrient contained; 6.22% C-organic, 0.25% N-total, 0.37me/100g exchangeable K, 2.74 me/100g exchangeable-Ca, 0.29 me/100g exchangeable-Mg, in the soil, as well as the decrease of exchangeable Al. Furthermore supporting plant growth such as (plant height, plant length, and the number of the leaf). Liming not significantly different for soil chemical properties and growth of oil palm. The higher the compost dose is given the better the growth of oil palms. Cultivation of tithonia as alley cropping at oil palm plantation can be used as composite materials for synthetic fertilizer substitute source N and K
Co-Authors , Kasli . DARMAWAN . Gusmini . HERVIYANTI Agustian Agustian Ahmad, Fachri Amrizal Saidi Amsar Maulana Amsar Maulana Amsar Maulana Amsar Maulana Amsar Maulana Amsar Maulana Andini, Liza Anggun Fitria Yenad Anwar, Al Hidayati Maulana Aprizal Zainal Arestha Leo Lita Auzar Syarif Azwar Rasyidin Batara, Dewi Syaputri Benito Heru Purwanto Darfis, Irwan Darmawan, Darmawan Darusman Darusman Dewi Hayati Edri Yeni elara resigia Enita Enita Enita, Enita Erwin Yudi Hidayat Etti Swasti Fachri Ahmad Fachri Ahmad Farah Ilham Gusnidar, G Hamzar Suyani Harianti, Mimien Hasmiandy Hamid Hayati, PK Dewi Hazli Nurdin Hermansah Hermansah Hermansah Hermansyah Hermansyah Hermansyah Hermansyah Herviyanti Herviyanti Hijri, Nurul Husnita Husnita Irfan Suliansyah Junaidi Junaidi Junaidi Junaidi Juwita, Pitri Kurnianto, Reza Tri Lita, Arestha Leo Maidia Solfianti Maidia Solfianti Maulana, Amsar Mimien Harianti Moli Monikasari Netti Herawati Nur Afni Evalia Nurhajati Hakim Nurhajati Hakim Nurhajati Hakim Nurhajati Hakim Panca Jarot Santoso Rahmi Fitri Ridho Ryswaldi Ruhaimah Ruhaimah Ryswaldi, Ridho Sandra Prima Sanna Paija Hasibuan Septi Angga Wardahana Sutoyo Sutoyo Sutoyo Sutoyo Syafrimen Yasin Tanjung, Ellsya Tatalia Augustin Putri Widodo Haryoko Yadi Jufri Yulnafatmawita Yulnafatmawita Zuldadan Naspendra Zulfadly Syarif