cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Rokhani Hasbullah
Contact Email
rokhani.h@gmail.com
Phone
-
Journal Mail Official
jurnaltep@yahoo.com
Editorial Address
-
Location
Kota bogor,
Jawa barat
INDONESIA
Jurnal Keteknikan Pertanian
Published by Institut Pertanian Bogor
ISSN : 24070475     EISSN : 23388439     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Keteknikan Pertanian dengan No. ISSN 2338-8439, pada awalnya bernama Buletin Keteknikan Pertanian, merupakan publikasi resmi Perhimpunan Teknik Pertanian Indonesia (PERTETA) bekerjasama dengan Departemen Teknik Mesin dan Biosistem (TMB) IPB yang terbit pertama kali pada tahun 1984, berkiprah dalam pengembangan ilmu keteknikan untuk pertanian tropika dan lingkungan hayati. Jurnal ini diterbitkan dua kali setahun. Penulis makalah tidak dibatasi pada anggota PERTETA tetapi terbuka bagi masyarakat umum. Lingkup makalah, antara lain: teknik sumberdaya lahan dan air, alat dan mesin budidaya, lingkungan dan bangunan, energi alternatif dan elektrifikasi, ergonomika dan elektronika, teknik pengolahan pangan dan hasil pertanian, manajemen dan sistem informasi. Makalah dikelompokkan dalam invited paper yang menyajikan isu aktual nasional dan internasional, review perkembangan penelitian, atau penerpan ilmu dan teknologi, technical paper hasil penelitian, penerapan, atau diseminasi, serta research methodology berkaitan pengembangan modul, metode, prosedur, program aplikasi, dan lain sebagainya.
Arjuna Subject : -
Articles 623 Documents
 53   54   55   56   57 
Uji Teknis Pengecilan Partikel Gula Tebu menggunakan Disk Mill Tipe FFC-15 Muhammad Iqbal Abdi Lubis; Andasuryani Andasuryani
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.138-152

Abstract

Alat dan mesin pertanian (Alsintan) dibuat dengan tujuan untuk memudahkan kerja manusia dalam bidang pertanian. Misal, untuk memudahkan proses pengecilan dan mencapai keseragaman ukuran gula tebu dapat digunakan disk mill. Tujuan penelitian ini secara umum adalah melakukan uji teknis terhadap Disk Mill tipe FFC-15, dan secara khusus untuk mengetahui rendemen gula tebu dari hasil pengecilan ukuran menggunakan disk mill. Penelitian ini telah dilakukan di Laboratorium Manajemen dan Produksi Mesin Pertanian Departemen Teknik Pertanian dan Biosistem, Fakultas Teknologi Pertanian Universitas Andalas pada bulan September 2022. Penelitian ini menggunakan rancangan acak lengkap (RAL) faktorial dengan lima kali ulangan. Hasil penelitian menunjukkan rata-rata nilai rendemen dan kapasitas kerja efektif pengecilan ukuran partikel gula tebu untuk seluruh perlakuan sebesar 88.13% dan 7.62 kg/jam dengan rata-rata kadar air sebelum dan sesudah pengecilan ukuran masing-masing 3.36% dan 2.04%. Nilai rendemen terbaik terdapat pada perlakuan ketiga (90.93%) dengan rata-rata putaran mesin sebesar 2,781.20 rpm. Selain itu, losses tertinggi terdapat pada perlakuan pertama dengan rata-rata nilai sebesar 15.37% pada kecepatan putaran mesin rata-rata 1,733.20 rpm.
Physicochemical Properties and Microbial Inhibition on Biofilms Cassava Starch with Green Cayenne Pepper Leaf Extract (Capsicum Frutescens L) Rahmadhia, Safinta Nurindra
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.153-164

Abstract

Biofilm is an alternative packaging for food products in the form of thin layers made from natural materials that are safe to use and for consumption. One of the materials used in the manufacture of biofilms is starch. However, starch-based biofilms have a weakness, namely their low water resistance. The addition of green cayenne pepper leaf extract is thought to improve the physicochemical properties as well as the potential to become antimicrobial for biofilms. The purpose of this study was to determine the effect of the addition of green cayenne leaf extract on the physicochemical and antimicrobial properties of cassava starch biofilm. The green cayenne leaf extract formulations used in this study were F0 (control), F1 (1 ml), F2 (1.5 ml), F3 (2 ml), F4 (2.5 ml) and F5 (3 ml) with 3 repetitions each. The results of this study indicate that the addition of green cayenne leaf extract has a significant effect on thickness (0.17-0.26 mm), tensile strength (2.25-5.87 Mpa), elongation (44.9-81.9 % ), solubility (23.1-27.6 %), water vapor permeability (5.20-9.23 g/m.s.kPa), moisture content (11.3-11.8 %) and microbial inhibition on F5 results in higher values ​​of F0 and F1.
Pembuatan Kertas Berbahan Baku Pelepah Kelapa Sawit (Elaeis guineensis Jacq.): Manufacture of paper material from oil palm fronds Siti Aisyah Aisyah; Trihernawati Trihernawati
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.165-174

Abstract

Oil palm (Elaeis guineensis, Jack) is a source of income for millions of farming families, a source of foreign exchange, a provider of employment, as well as a driver for the growth and development of downstream palm oil-based industries in Indonesia. Oil palm fronds are solid waste originating from oil palm plantations. Paper is a thin material that is produced by compressing the fibers derived from the pulp. The process of making pulp is by separating lignin compounds to get cellulose fibers from wood. This study aims to utilize palm fronds to be used in making paper according to SNI. The stages of this research were chopping, washing, boiling, soaking NaOH, soaking H2O2, grinding, adding talcum, molding and drying in an oven at 75 0C, 80 0C, 85 0C. As many as 64% of panelists stated that the paper produced with a drying temperature of 75 0C was white while at 80 0C as many as 62% of panelists stated that the paper produced was white and at 85 0C as many as 56% stated that the paper was white and in accordance with SNI 4733 The texture of the paper produced at a drying temperature of 75 0C was 76% of the panelists who stated that the resulting paper had a smooth texture while at 80 0C there were 66% who stated that the texture of the paper was smooth and at 85 0C as many as 62% stated the texture of the paper was smooth and according to SNI 0439 The water content of the paper produced at a drying temperature of 75 0C obtained an average of 1.9%, at 80 0C it was only 1.8% and with a drying temperature of 85 0C a high moisture content was obtained, namely 1.6%, but this result is still in accordance with SNI 0439, namely the maximum 2%. The average grammage value of paper produced at a drying temperature of 75 0C is 76.1 g/m2, at a temperature of 80 0C it is 79.9 g/m2 and at a drying temperature of 85 0C it is 85.3 g/m2 where this value is still in accordance with SNI 0439, namely a minimum of 50 g/m2
Sistem Pendukung Keputusan untuk Optimasi Pemilihan Tanaman Hortikultura pada Lahan Pertanian Setyo Pertiwi; Prakoso Ramadhan Pradana Twenty One
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.175-192

Abstract

Tanaman hortikultura memiliki klasifikasi kesesuaian lahan (agroekologi) yang berbeda untuk setiap tanaman sehingga dibutuhkan ketepatan dalam pemilihan tanaman untuk lahan yang akan ditanami. Penelitian ini bertujuan merancangbangun SPK untuk penentuan jenis tanaman hortikultura yang sesuai dengan karakteristik agroekologi dan layak secara finansial. Metode yang digunakan adalah Software Development Life Cycle (SDLC) dengan analisis pemilihan tanaman menggunakan MOORA, BC ratio, NPV, dan IRR. Proses validasi dilakukan menggunakan data lahan Kecamatan Panyingkiran dan Kecamatan Cikalongkulon. Hasil menunjukkan bahwa SPK yang dibuat mampu memberikan rekomendasi yang sesuai dengan keadaan agroekologi pada lahan sebenarnya untuk dua kategori tanaman hortikultura, yaitu tanaman semusim dan tahunan. Tanaman hortikultura yang direkomendasikan kebetulan juga sesuai dengan tanaman yang banyak diusahakan oleh petani setempat.
Estimasi Risiko Migrasi Bisfenol A (BPA) Dari Kemasan Logam Pangan Olahan Di Indonesia Nugraha Edhi Suyatma; Sentani Chasfila; Puspo Edi Giriwono
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.253-267

Abstract

Logam merupakan salah satu jenis kemasan pangan yang banyak digunakan, untuk mencegah korosi. Logam biasanya dilapisi dengan pelapis epoksi resin seperti bisfenol A (BPA). BPA dapat mempengaruhi sistem endokrin dan dapat menyebabkan kerusakan pada berbagai jaringan serta organ. Penelitian ini bertujuan untuk mengetahui kandungan migrasi BPA pada kemasan kaleng sarden dan kornet serta paparannya pada penduduk Indonesia. Sampel yang digunakan adalah kemasan kaleng kosong untuk sarden dan kornet masing-masing 12 buah kemudian dianalisis menggunakan HPLC-UV Vis. Hasilnya menunjukkan bahwa konsetrasi migrasi BPA dalam kemasan kaleng sarden (menggunakan simulan etanol 20%) berkisar antara 0,005 – 0,05 mg/kg. Sedangkan dalam kemasan kaleng kornet (menggunakan simulan etanol 10%) sebesar 0,005 mg/kg. Rerata estimasi paparan perhari migrasi BPA dari konsumsi sarden dalam kaleng tertinggi terdapat pada usia 24-59 bulan yaitu 0,0546 µg/kgBB, sedangkan estimasi paparan perhari migrasi BPA dari konsumsi kornet dalam kaleng tertinggi terdapat pada usia anak 5-12 tahun yaitu sebesar 0,0066 µg/kgBB. Nilai risiko P95 untuk paparan migrasi BPA dari konsumsi sarden dalam kaleng pada seluruh kelompok usia sebesar 2,3883% sedangkan nilai risiko paparan dari konsumsi kornet dalam kaleng pada seluruh kelompok usia sebesar 0,3846%. Nilai risiko tersebut tidak melebihi asupan harian yang dapat ditoleransi sementara (tTDI), yang mengindikasikan bahwa paparan migrasi BPA melalui kemasan kaleng sarden dan kornet akibat mengkonsumsi sarden dan kornet tidak menimbulkan risiko bahaya terhadap kesehatan manusia di Indonesia.
Artificial Neural Networks to Predict Melon (cucumis melo L.) Production in Tropical Greenhouse, Indonesia Erniati Erniati; Herry Suhardiyanto; Rokhani Hasbullah; Supriyanto Supriyanto
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.193-204

Abstract

Quality of melon indicated by size (fruit weight), appearance, and sweetness. In Indonesia, weight of high quality melon was 800 to 1,200 grams each. Mainly, the melon was cultivated in open fields during the dry season with several limitations of cultivation. To cope with those problems, melon was cultivated inside the greenhouse. However, there are several parameters influenced to melon quality inside the tropical greenhouse with hydroponic system. There were a few studies on the prediction model development of melon inside the greenhouse in a tropical area, Indonesia. The aim of this study was to develop an artificial neural networks (ANNs) model to predict the melon production inside the greenhouse (fruit weight) using several parameters such as the number of days to fruit formation, number of days to maturity, plant length, fruit width, fruit length, fruit cavity diameter, flesh diameter, branch number, fruit branch number, and leaf number. The result of this study was the ANN model with configurations of 10 input layers, 6 hidden layers, and 1 output layer with R2 was 0.93. This study concluded that there is a correlation between the input parameters with the weight of the melon.
Perlakuan Air Panas untuk Pengendalian Penyakit Busuk Buah Salak selama Penyimpanan Anis Mutirani; Giyanto Giyanto; Efi Toding Tondok
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.205-221

Abstract

Fruit rot disease is one of the important diseases that causes a high yield loss of snake fruit during storage. The alternative of postharvest process to maintain the quality of snake fruit is hot water treatment. This study aims to obtain a combination of soaking time and temperature that can control fruit rot disease of Pondoh snake fruit. The treatment consisted of 45, 50 and 55°C for 5 and 10 minutes and control. The results showed that hot water treatment had a significant effect on the snake fruit. Temperature of 50°C for 5 minutes is more effective in preventing the appearance of disease symptoms up to 10th days of storage, compared to controls which started to show symptoms on the 2nd day. Isolation of fungal pathogen from diseased control were found 4 fungi, i.e Thielaviopsis paradoxa, Aspegillus flavus, Fusarium sp. and Penicillium sp., while T. paradoxa and A. flavus are still found on treated diseased samples with hot water treatment. Hot water treatment did not affect the water content and total fruit acid but impacted to the weight loss and was able to maintain the hardness value and the panelist's preference level based on organoleptic tests.
Monitoring and Control System Development on IoT-Based Aeroponic Growth of Pakcoy (Brassica rapa L.) Renny Eka Putri; Winda Fauzia; Dinah Cherie
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.222-239

Abstract

One of the methods that can be used by Indonesian people in urban farming is the Aeroponic method of planting plants. The aeroponic method has a faster nutrient delivery speed than hydroponics and normal plant cultivation. The main objective of this study was to design an aeroponic monitoring and control system for Pakcoy (Brassica rapa. L) using the blynk application as an interface for remote control. The control system used is NodeMCU V3, DHT22 sensor, HC-SR04 ultrasonic sensor and TDS sensor. Plants in the system use a container box measuring 110 cm x 80 cm with 10 nozzles on the inside of the box attached to a ½ inch pipe, with 24 planting holes on the lid of the box with a spacing of 20 cm. The pump will automatically turn on when the temperature in the box is >25oC and will stop when the temperature is =24oC, or when the humidity is <80%. The results obtained during the 30 days of research showed that the average R2 value of the DHT22 sensor was 0.9864 and 0.9864, the HC-SR04 sensor was 0.996 and the TDS sensor was 0.9899. Observations on the growth of pakcoy plants obtained an average height of 13.3 cm for system plants and 13.4 cm for control plants. The average leaf width in system plants was 4.3 cm and 3.6 cm in control plants. the average number of leaves on system plants is 8 leaves and 9 leaves on control plants. The system plant weight was 5.493 gr and that of the control plant was 2.961 gr. The control system that has been made can work well and can be used in aeroponic cultivation of plants.
Does a Freeze-thaw Pretreatment Enhance the Quality of Dried Foods? A Meta-Analysis Tri Yulni; Wendianing Putri Luketsi Luketsi; Waqif Agusta; Ermi Erene Koeslulat; Spetriani Spetriani; Lully Natharina Prasetyani
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.240-252

Abstract

Based on the results of several studies, it's questionable if freeze-thaw pretreatment can improve dried product qualities. To answer this question, a meta-analysis was conducted to determine the effect of freeze-thaw pretreatment on the quality of dried products. This research aimed to assess the impact of freeze-thaw pretreatment on the quality of dried plant-based foods. The data was sourced from the Scopus database, and the selection criteria were based on the PRISMA protocol. All meta-analysis calculations were performed using OpenMEE Software. The results revealed that freeze-thaw pretreatment significantly affected ΔE, TFC, and TPC. However, freeze-thaw pretreatment does not significantly affect shrinkage and hardness. Based on what the analysis subgroup found, the best freezing temperatures are -20 °C and -196 °C because both temperatures favorably impact TFC and hardness. Moreover, freeze-thaw pretreatment is applicable to I-C, NIR, and HA-MV drying.
Performance of Automatic Unpowerer Subsurface Irrigation on Water-Lettuce, Choy-Sum, and Spinach Cultivations Syafriyandi, Debby; Setiawan, Budi Indra; Arif, Chusnul; Suwardi, Suwardi
Jurnal Keteknikan Pertanian Vol. 11 No. 3 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.3.268-278

Abstract

Irigasi bawah permukaan otomatis nirdaya yang dijadikan objek dalam penelitian ini ditujukan untuk memberikan air langsung ke zona perakaran dan akan berhenti bila sudah mencukupi dengan menggunakan katup level air. Penelitian ini bertujuan untuk mengevaluasi kinerja model irigasi ini pada 3 jenis sayuran, yaitu kangkung, Caisim, dan bayam dengan indikator produktivitas lahan, produktivitas air dan koefisien tanaman. Jaringan irigasi berupa rangkaian pot tanaman sejumlah 12 buah, masing-masing berukuran 33 cm diameter atas, 23.5 cm diameter bawah, dan tinggi 31 cm. Satu pot berukuran sama dijadikan pengendali level air. Air irigasi otomatis mengalir bila terjadi penurunan level air di setiap pot tanaman. Level air yang dipertahankan adalah 10 cm di bawah permukaan tanah. Diperoleh hasil, produktivitas lahan Caisim 9.6 kg m-2, bayam 12.3 kg m-2 dan kangkung 25.1 kg m-2. Produktivitas air Caisim 29.0 kg m-3, bayam 12.3 kg m-3, dan kangkung 52.4 kg m-3. Koefisien tanaman untuk Caisim berkisar 0.12–1.71, bayam 0.12–0.94, dan kangkung 0.16–1.46. Dapat disimpulkan, model irigasi bawah permukaan otomatis nirdaya ini sangat efektif dan efisien serta mudah dalam pemeliharaan dan pengoperasiannya.

Page 55 of 63 | Total Record : 623

 53   54   55   56   57 

Filter by Year

1992 2025


Reset
Filter By Issues
All Issue Vol. 13 No. 4 (2025): Jurnal Keteknikan Pertanian Vol. 13 No. 3 (2025): Jurnal Keteknikan Pertanian Vol. 13 No. 2 (2025): Jurnal Keteknikan Pertanian Vol. 13 No. 1 (2025): Jurnal Keteknikan Pertanian Vol. 12 No. 3 (2024): Jurnal Keteknikan Pertanian Vol. 12 No. 2 (2024): Jurnal Keteknikan Pertanian Vol. 12 No. 1 (2024): Jurnal Keteknikan Pertanian Vol. 11 No. 3 (2023): Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian Vol. 11 No. 1 (2023): Jurnal Keteknikan Pertanian Vol. 10 No. 3 (2022): Desember 2022 Vol. 10 No. 2 (2022): Agustus 2022 Vol. 10 No. 1 (2022): April 2022 Vol. 9 No. 3 (2021): Jurnal Keteknikan Pertanian Vol. 9 No. 2 (2021): Jurnal Keteknikan Pertanian Vol. 9 No. 1 (2021): Jurnal Keteknikan Pertanian Vol. 8 No. 3 (2020): Jurnal Keteknikan Pertanian Vol. 8 No. 2 (2020): Jurnal Keteknikan Pertanian Vol. 8 No. 1 (2020): Jurnal Keteknikan Pertanian Vol. 7 No. 3 (2019): JURNAL KETEKNIKAN PERTANIAN Vol. 7 No. 2 (2019): JURNAL KETEKNIKAN PERTANIAN Vol. 7 No. 1 (2019): JURNAL KETEKNIKAN PERTANIAN Vol. 6 No. 3 (2018): JURNAL KETEKNIKAN PERTANIAN Vol. 6 No. 2 (2018): JURNAL KETEKNIKAN PERTANIAN Vol. 6 No. 1 (2018): JURNAL KETEKNIKAN PERTANIAN Vol. 5 No. 3 (2017): JURNAL KETEKNIKAN PERTANIAN Vol. 5 No. 2 (2017): JURNAL KETEKNIKAN PERTANIAN Vol. 5 No. 1 (2017): JURNAL KETEKNIKAN PERTANIAN Vol. 4 No. 2 (2016): JURNAL KETEKNIKAN PERTANIAN Vol. 4 No. 1 (2016): JURNAL KETEKNIKAN PERTANIAN Vol. 3 No. 2 (2015): JURNAL KETEKNIKAN PERTANIAN Vol. 3 No. 1 (2015): Jurnal Keteknikan Pertanian Vol. 2 No. 2 (2014): Jurnal Keteknikan Pertanian Vol. 2 No. 1 (2014): Jurnal Keteknikan Pertanian Vol. 27 No. 1 (2013): Jurnal Keteknikan Pertanian Vol. 1 No. 1 (2013): Jurnal Keteknikan Pertanian Vol. 26 No. 2 (2012): Jurnal Keteknikan Pertanian Vol. 26 No. 1 (2012): Jurnal Keteknikan Pertanian Vol. 25 No. 2 (2011): Jurnal Keteknikan Pertanian Vol. 25 No. 1 (2011): Jurnal Keteknikan Pertanian Vol. 24 No. 2 (2010): Jurnal Keteknikan Pertanian Vol. 24 No. 1 (2010): Jurnal Keteknikan Pertanian Vol. 23 No. 2 (2009): Jurnal Keteknikan Pertanian Vol. 23 No. 1 (2009): Jurnal Keteknikan Pertanian Vol. 22 No. 2 (2008): Jurnal Keteknikan Pertanian Vol. 22 No. 1 (2008): Jurnal Keteknikan Pertanian Vol. 21 No. 4 (2007): Jurnal Keteknikan Pertanian Vol. 21 No. 3 (2007): Jurnal Keteknikan Pertanian Vol. 21 No. 2 (2007): Jurnal Keteknikan Pertanian Vol. 21 No. 1 (2007): Jurnal Keteknikan Pertanian Vol. 20 No. 3 (2006): Jurnal Keteknikan Pertanian Vol. 20 No. 2 (2006): Jurnal Keteknikan Pertanian Vol. 20 No. 1 (2006): Jurnal Keteknikan Pertanian Vol. 19 No. 3 (2005): Buletin Keteknikan Pertanian Vol. 19 No. 1 (2005): Buletin Keteknikan Pertanian Vol. 17 No. 2 (2003): Buletin Keteknikan Pertanian Vol. 17 No. 1 (2003): Buletin Keteknikan Pertanian Vol. 16 No. 1 (2002): Buletin Keteknikan Pertanian Vol. 15 No. 2 (2001): Buletin Keteknikan Pertanian Vol. 15 No. 1 (2001): Buletin Keteknikan Pertanian Vol. 14 No. 3 (2000): Buletin Keteknikan Pertanian Vol. 14 No. 2 (2000): Buletin Keteknikan Pertanian Vol. 14 No. 1 (2000): Buletin Keteknikan Pertanian Vol. 13 No. 3 (1999): Buletin Keteknikan Pertanian Vol. 13 No. 1 (1999): Buletin Keteknikan Pertanian Vol. 12 No. 2 (1998): Buletin Ketenikan Pertanian Vol. 12 No. 1 (1998): Buletin Ketenikan Pertanian Vol. 11 No. 1 (1997): Buletin Ketenikan Pertanian Vol. 6 No. 1 (1992): Buletin Ketenikan Pertanian More Issue