Jurnal Ilmu Pertanian Indonesia
ISSN : 08534217     EISSN : 24433462
Artikel yang dimuat meliputi hasil-hasil penelitian, analisis kebijakan, dan opini-opini yang berhubungan dengan pertanian dalam arti luas, seperti agronomi, ilmu tanah, hama dan penyakit tanamam, ilmu kehewanan, kedokteran veteriner, keteknikan pertanian, teknologi industri, teknologi pangan, ilmu gizi, keluarga dan konsumen, biometri, biologi, klimatologi, peternakan perikanan, kelautan, kehutanan, dan sosial-ekonomi pertanian yang telah dipertimbangkan dan disetujui oleh Dewan Editor. Keterangan mengenai peralatan, pengamatan, dan teknik percobaan akan diterima sebagai artikel CATATAN. Pedoman Penulisan dicantumkan pada setiap terbitan tercetak. Indeks Penulisan dan subjek serta daftar penelaan (mitra bestari) dicantumkan di tiap nomor terakhir pada setiap volume.
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Studi agrobiofisik kamandrah (croton tiglium L.) dan penentuan potensi awal kamandrah sebagai larvasida hayati pencegah penyakit demam berdarah dengue Iswantini, Dyah; Rosman, Rosihan; Kesumawati, Upik; Mangunwidjaja, Djumali; Rahminiwati, Min; Riyadhi, Adi
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The aim of the research is to obtain the ecological condition and propagation of kamandrah (Croton tiglium L.) and determination of its potency as biological larvacidal for preventing dengue haemorraghic fever. Agrobiophysic study indicated that Croton tiglium L. plant need full sunlight(> 70 %). low intensity of sunlight could decrease the ability of plant to produce seed. The plant could grow well on podzolic land (30-50 m upon sea surface). Seed of kamandrah from Ampah has growth percentage of 43.8 °/o, height of 27.5 em, stem diameter of 5 em, total leaves of 10, and total primary branches of 2. Phytochemical assay resulted that among other part of Kamandrah, Kamandrah seed has highest alkaloid content. Because alkaloid compound has high larvicidal activity, kamandrah seed has high potency as larvicide. Among all of extracts of part of plant, oil of Croton tiglium L. has the highest potency as biological larvacidal with 863.67 ppm of LC50 for 24 hours of treatment.Keywords : Kamandrah (Croton tiglium L.), biological larvacidal, Dengue Haemorraghic fever, agrobiphysicstudy.
Hubunagn kemampuan pergantian inang dengan plastisitas genetika pada cendawan blas padi (Pyricularia grisea) Listiyowati, Sri; Widyastuti, Utut; Rahayu, Gayuh; Hartana, Alex; Jusuf, Muhammad
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The Digitaria ciliaris, wild grass grown around rice field, was a host for Pyricularia grisea (Cooke) Sacc., the fungi caused blast disease of rice. This fungi have a specific mechanism to regenerate new genetic variation in its life cycle. The aim of this research is to study the relation between the ability of the fungi to infect different species of host with its genetic plasticity. It was used three SCAR molecular markers Cutl, Pwl 1 and Erg2. P.grisea isolates (Dc4J1) originated from D. ciliaris at Jasinga-Bogor were able to infect rice cultivars Kencana Baliand Cisokan. The original Dc4Jl, from D. ciliaris, and the Dc4Jl that were reisolated from the infected rice cultivars (reisolates-1) had the same ability to infect Kencana Bali and Cisokan. Molecular technique showed that there was a different molecular marker genotype between the original Dc4J1, from D. ciliaris, and the Dc4Jl reisolated from infected rice cultivars. The original Dc4J1 owned Cutl but did not Pwl2 in contrary the reisolatesDc4J1 from rice cultivars (reisolates-1) had Pwl2 but did not Cutl. The Erg2 presented in both the original and the reisolated Dc4Jl. These results indicated that there were a change of genotype of P. grisea at the same time with the change of host species. The Dc4Jl isolates originated from Kencana Bali and Cisokan (reisolates-2) that were infected by reisolate-1, had the same genotype with the reisolates-1. Keywords: Digitaria ciliaris, Pyricularia grisea, genetic plasticity.
Pengaruh kondisi fumigasi terhadap efektifitas pewarnaan dan keawetan kayu hutan rakyat Rahayu, Istie Sekartining; Prihatin, Esti
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Konsumsi log Indonesia rata-rata pada tahun 1999-2004 adalah sekitar 40 juta meter kubik per tahun. Jauh di atas kapasitas hutan alam yang hanya mampu menyediakan 6,9 juta meter kubik per tahun dan hanya 5 juta meter kubik per tahun berasal dari hutan tanaman. Hutan rakyat saat ini telah dikelola dengan baik dengan orientasi komersial untuk memenuhi kebutuhan industri hasil hutan. Akhir-akhir ini hutan rakyat sudah dapat diandalakan sebagai penghasil kayu untuk furniture seperti kayu karet (Hevea brasiliensis), Maesopsis (Maesopsis eminil), Jeunjing (Paraserianthes fa/cataria), Durian (Durio spp.), Nangka (Arthocarpus sp). Namun kayu-kayu tersebut mempunyai kualitas penampilan yang rendah (warna tidak jelas dan tidak seragam, tekstur tidak menarik). Oleh karena itu membutuhkan beberapa perlakuan untuk meningkatkan kualitas penampilan, salah satunya melalui fumigasi. Tujuan dari penelitian ini adalah untuk mendapatkan kondisi optimal fumigasi (kombinasi antara volume Amonia dan waktu) untuk mendapatkan warna kayu yang tahan terhadap pelapukan dan menganalisis periode waktu fumigasi dalam melawan serangan Cryptotermes sp. Perlakuan yang fumigasi dengan 2, 4, 6 liter Amonia untuk selama 1, 2, dan 3 hari. Hasil penelitian ini menunjukkan bahwa perlakuan fumigasi hanya berdampak pada nangka, mahoni, rambutan. Fumigasi tidak berdampak pada Menteng dan Mindi. Sebab perbedaan dalam kandungan tanin dalam kayu membuat setiap kayu mempunyai reaksi berbeda terhadap fumigasi (Amonia). Berdasarkan perbandingan seluruh parameter secara kuantitatif menunjukkan bahwa warna yang paling gelap yaitu nangka dihasilkan dari fumigasi selama 3 hari dan 4 liter ammonia, mahoni selama 2 hari dengan 6 liter amonia, rambutan dengan 4 liter amonia selama 2 hari. Resistensi terhadap pelapukan menunnjukan bahwa seluruh jenis tidak tahan terhadap pelapukan dan warna mereka hilang. Fumigasi kayu menunjukkan dapat tahan serangan rayap dimana 100% Cryptotermes sp mati (nangka, mahoni dan Menteng), sementara Mindi 83% dan rambutan hanya mampu mematiakn 89% rayap.
Teknik perbanyakan cepat sumberdaya genetik iles-iles untuk mendukung percepatan komersialisasi secara berkelanjutan Santosa, Edi; Wirnas, Desta
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
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Abstract

Increasing demand on glucomannan as healthy diet in develop countries, promotes higher planting area of Amorphophallus. Iles-iles corm (Amorphophallus muellen) contains high percentage of glucomannan. In order to meet with increasing demand, providing mass planting materials is a great concern in Indonesia. Therefore, the study on skin corm and bulbil as propagation materials was conducted. In the first experiment, bulbil with different size and section, i.e., very small, small, medium and large, and half section and 1f4 section were used. In the second experiment, we evaluated the prospect of skin corm as propagul where different size of skin corm was used, i.e., 1 em x 1 em, 2 em x 2 em, and 4 em x 4 em. Results showed that both bulbil and skin corm could be utilized as prospectivepropagules of iles-iles. Propagation using bulbil was more superior as compared to skin corm. Bulbil of both whole and sectioned had high emergence of bud (> 90%), except very small sized ones. Very small bulbil (diameter less than 1 em) resulted in ca 605 of emergence. Skin corm sized 4 em x 4 em produced equal emergence to medium bulbil. In general, increasing size of skin corm increased success of emergent bud. Delaying emergence on small sized skin corm could be assessed by smaller nutrient reserved. Most unseccessemergence of small sized skin and very small bulbil was due to decay of the propagules. These experiments implied that both bulbils and skin corm could be used as mass propagules for iles-iles production. Keyword : Bulbi I, Amorphophallus muelleri, iles - iles, mass propagation, skin of corm.
Dampak penggunaan beluntas dalam upaya menurunkan kadar lemak daging terhadap produksi dan kadar lemak telur itik lokal Rukmiasih, Rukmiasih; Tjakradidjaja, A. S.; Sumiati, Sumiati; Huminto, H.
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The beluntas (Piuchea indica L) leaf powder is one of the herbs species which contains antioxidants (flavonoid, vitamin C and beta-carotene), phytochemical and antinutrients. This study was designed to know the ability of the beluntas on the sensory of meat and duck egg without gave the negative effect on duckperformances. The results showed that off-flavors skinned meat duck were not affected, while off-flavors duck and salted duck eggs are significantly reduced by 0.5% and 1% of beluntas leaf meal in the feed ration. Fatty acids of yolk eggs and duck meat were higher by giving beluntas leaf meal on the ration than without giving one. This showed that antioxidant on beluntas leaf meal could prevent lipid oxidation. TBA value of duck meat was the lowest by giving 0.5% of beluntas on the ration. The productivity such as egg production and feed conversion were the best by giving 1 °/o of beluntas leaf meal on the ration. Egg weight, quality of eggs; fat and cholesterol of yolk were not affected. A higher nutrient digestibilities (protein, energy, Ca and P) was obtained in duck eating 1.0% beluntas leaves (P
Optimalisasi kerja mycofer dengan augmentasi mikroorganisme tanah potensial dan asam humat untuk rehabilitasi lahan marginal dan terdegradasi di Indonesia Karti, Panca Dewi MH; R., Sri Wilarso Budi; Mardatin, Noor F
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
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Abstract

Tanah marginal dan terdegradasi di Indonesia cukup banyak, antara lain tanah masam dan tanah pasca penambangan. Untuk mengatasinya dengan penggunaan pupuk hayati yaitu fungi mikoriza arbuskula (FMA), mikroorganisme pelarut fosfat (MPP) dan mikroorganisme penambat nitrogen (MPN). Penelitian ini bertujuan untuk mendapatkan formulasi baru pupuk hayati yang merupakan konsorsium antara Mycofer (FMA) dengan MPP, MPN, dan asam humat agar dapat lebih meningkatkan kemampuannya dalam menyediakan unsur hara dan membantu ketahanan tanaman pada lingkungan yang kurang menguntungkan. Penelitian ini terdiri dari penelitian tahun pertama terdiri dari 3 tahap yaitu: (i) Persiapan bahan augmentasi: perbanyakan mikroba potensial (FMA, MPP dan MPN) dan asam humik (ii) Formulasi pupuk hayati yaitu (i) Mycofer dengan penambahan MPP isolat 1, 2 dan 3 (ii) Mycofer dengan penambahan Azospirilum isolat 1, 2 dan 3 (iii) Mycoferdengan penambahan Rhizobium isolat 1, 2 dan 3, (iv) Mycofer dengan penambahan asam humat, (v) Mycofer dengan penambahan MPP, Azospirilum dan Rhizobium, dan (vi) Mycofer dengan penambahan MPP, Azospirilum, Rhizobium dan asam humat. (iii) Uji formulasi Mycofer plus pada tanah masam pasca penambangan dan tanah latosol skala laboratorium dengan tanaman uji Jagung dan Legum Cover Crop (LCC) yang terdiri dari (a) Centrosema pubesens (b) Pueraria phaseoloides, rumput yang terdiri dari (a) Panicum maximum (b) Setariasplendida pada pot kapasitas 5 kg selama 3 bulan. Penelitian tahun kedua yaitu faktor pertama adalah perlakuan mikroba terdiri dari 4 taraf yaitu P1 (kontrol), P2 (mycofer). P3 (mycofer dengan Rhizobium/Azospirillum), P4 (mycoferd, Rhizobium/ Azospirillum dan MPP) dan faktor kedua adalah perlakuan teknologi penanaman terdiri dari 3 jenis yaitu T1 (SOP tambang emas), T2 ( teknologi pembenah tanah), T 3 ( Teknologi hidroseeding). Hasil penelitian tahun pertama menunjukkan bahwa lima jenis tanaman uji memberikan respon yang berbeda pada tanah latosol maupun tanah pasca penambangan emas. Secara umum ke lima jenis tanaman tersebut membutuhkan pupuk hayati tidak secara tunggal, akan tetapi membutuhkan konsorsium dari beberapa jenis mikroorganisme dan hasilnya akan lebih baik bila dikombinasikan dengan pemberian asam humat, baik pada tanah latosol atau tanah pasca penambangan emas. Hasil penelitian tahun kedua pada lahan pasca tambangemas PT. Aneka Tambang di Pongkor yaitu tanaman yang toleran tidak memerlukan teknologi penanaman danpenambahan mikroba untuk pertumbuhannya yaitu Calopogonium mucunoides dan Setaria splendida, sedangkan Brachiaria humidicola, Centrosema pubescens hanya memerlukan penambahan mikroba yaitu perlakuan P3 dan P4 serta P2. Pueraria phaseoloides dan Panicum maximum termasuk tanaman peka karena memerlukan penambahan mikroba dan teknologi penanaman yaitu perlakuan T3P3 dan perlakuan T3P4.
Kajian pemanfaatan limbah organik cair untuk pembiakan masal agens antagonis pseudomonas flourescens serta uji potensinya sebagai bio-pestisida Giyanto, Giyanto; Tondok, Efi Toding
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Pseudomonas fluorescens has been well known as biological control agent for plant diseases control. The ;:>roblem to apply the agents widely in the field or in the level of farmer is limited technology of mass production Nith low cost, due to the simple technology of propagation has not been yet available. The objective of this research is to study the potency of liquid organic wastes as media for mass production of P. f/uorescens and toformulate them as bio-pesticide. The results showed that modification of coconut water to pH of 7.0 could be used as media for growing P. flourescens. The P. fluorescens also could grow well in livestock liquid waste by adding 10% meat extract. On the other hand, the liquid tofu waste and liquid compost waste became good media for growing of P. fluorescens by addition of 10°/o meat extract and 1.2S0/o sugar. Tetes tebu will be very good media for P. f/uorescens at S% final concentration and by adding of 10°/o meat extract and 2.S0/o of sugar. The P. fluorescens showed high antagonistic effect to Ralstonia solanacearum and Sclerotium rolfsii in all of modified liquid organic wastes media. Survival and antagonisctic activity of P. fluorescens in modified organic liquid wastes stored at S°C or room temperature were 12 weeks. In vivo antagonistic and plant growth promoting activity showed that P. fluorescens grown in liquid organic waste suppressed the incidence of stem rot diseases caused by Sclerotium rolfsii and increased the vigor of plant growth on watermelon. Formulation of the P. Fluorescens grown in modified coconut water gave the best performance of P. fluorescens in supppressing of plant diseases and inducing plant growth. The product of BeMOR(e) (beneficial microorganism) from the result of this research will be proposed to be patented.
Dampak penggunaan beluntas dalam upaya menurunkan kadar lemak daging terhadap produksi dan kadar lemak telur itik lokal Rukmiasih, .; Tjakradidjaja, A. S.; Sumiati, .; Huminto, H.
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

The beluntas (Piuchea indica L) leaf powder is one of the herbs species which contains antioxidants (flavonoid, vitamin C and beta-carotene), phytochemical and antinutrients. This study was designed to know the ability of the beluntas on the sensory of meat and duck egg without gave the negative effect on duck performances. The results showed that off-flavors skinned meat duck were not affected, while off-flavors duck and salted duck eggs are significantly reduced by 0.5% and 1% of beluntas leaf meal in the feed ration. Fatty acids of yolk eggs and duck meat were higher by giving beluntas leaf meal on the ration than without giving one. This showed that antioxidant on beluntas leaf meal could prevent lipid oxidation. TBA value of duck meat was the lowest by giving 0.5% of beluntas on the ration. The productivity such as egg production and feed conversion were the best by giving 1 °/o of beluntas leaf meal on the ration. Egg weight, quality of eggs; fat and cholesterol of yolk were not affected. A higher nutrient digestibilities (protein, energy, Ca and P) was obtained in duck eating 1.0% beluntas leaves (Psmall intestines. The numbers of ducks experiencing liver damage were the lowest in ducks consuming 1.0% beluntas leaves than those eating 0.5% beluntas
Optimalisasi kerja mycofer dengan augmentasi mikroorganisme tanah potensial dan asam humat untuk rehabilitasi lahan marginal dan terdegradasi di Indonesia Karti, Panca Dewi MH; R., Sri Wilarso Budi; Mardatin, Noor F
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

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Abstract

Marginal and degraded lands in Indonesia are considerably extensive and include many kinds of soil, for instance acid soil and post mining soil. Efforts to overcome the problem of acid soils and post mining soil are  the use of biological fertilizer such as arbuscular mycorrhizal fungi (FMA), phosphate dissoving microorganism (MPP), and nitrogen fixer microorganism (MPN). The objective of this research was seeking new formulation of biological fertilizer which constitute a consortium between Mycofer with MPP, MPN, and humic acid which could increase its ability for supplying nutrients and   help to increase plant survival in less favorable environment. The first year research comprised the following research stages: (i),  Preparation of augmentation materials, namely multipilication of potential microbe (FMA, MPP and MPN) and humic acid ; (ii)  Formulation of biological fertilizer which constitute the consortium of Mycofer with MPP, MPN and humic acid. There were 6 formulas of biological fertlizer which were tested in this research, namely (a) Mycofer with addition of MPP isolates 1, 2 dan 3; (b) Mycofer with addition of Azospirilum isolates 1, 2 and 3; (c) Mycofer with addition of Rhizobium isolates 1, 2 and 3; (d) Mycofer with addition of humic acid; (e) Mycofer with addition of  MPP, Azospirilum and Rhizobium; (f) Mycofer with addition of MPP, Azospirilum, Rhizobium and humic acid; (iii) Test of  Mycofer plus formulation in post mining acid soil and latosol soil at laboratory scale with corn crop and Legum Cover Crop (LCC) which comprised (a) Centrosema pubesens (b)  Pueraria phaseoloides, and grasses which comprised (a) Panicum maximum , and (b) Setaria splendida in pots with 5 kg capacity for 3 months. In the second year research, the first factor was microbe treatment, which compriserd 4 levels, namely P1 (control), P2 (mycofer), P3 (mycofer with Azospirillum/Rhizobium) and P4 (mycoferd, Azopirillum/Rhizobium, and MPP); whereas the second factor was technological treatment which comprised 3 kinds of technolgy, namely T1 (SOP of gold mining), T2 (technology of soil amelioriation), and T3 (hydroseeding technology). Result of the first year research indicate that the five crops species tested gave different responds weather in latosol soil or in post mining soil.   In general, all plant species tested indicate that they not only need single microorganism but  need consortium of microorganism.  The plants were better growth  when inoculated with consortium of microorganism combined with humic acid both in latosol soil and post gold mining soil respectively. The second year research was conducted in post gold mining land of PT Aneka Tambang, in Pongkor, Bogor.  The results showed the tolerant crops that did not require technology and addition of microbe for their growth are Calopogonium muconoides and Setaria spendida whereas Brahiaria humidicola and Centrosema pubesescens only required treatment P3, P4 and P2. Pueraria phaseoloides and Panicum maximum were categorized as sensitive plants because they required additio of microbes and technology, namely treatments T3P3 an treatment T3P4.
Kajian pemanfaatan limbah organik cair untuk pembiakan masal agens antagonis pseudomonas flourescens serta uji potensinya sebagai bio-pestisida Giyanto, .; Tondok, Efi Toding
Jurnal Ilmu Pertanian Indonesia Vol 14, No 2 (2009): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1989.032 KB)

Abstract

Pseudomonas fluorescens has been well known as biological control agent for plant diseases control. The ;:>roblem to apply the agents widely in the field or in the level of farmer is limited technology of mass production Nith low cost, due to the simple technology of propagation has not been yet available. The objective of this research is to study the potency of liquid organic wastes as media for mass production of P. f/uorescens and to formulate them as bio-pesticide. The results showed that modification of coconut water to pH of 7.0 could be used as media for growing P. flourescens. The P. fluorescens also could grow well in livestock liquid waste by adding 10% meat extract. On the other hand, the liquid tofu waste and liquid compost waste became good media for growing of P. fluorescens by addition of 10°/o meat extract and 1.2S0/o sugar. Tetes tebu will be very good media for P. f/uorescens at S% final concentration and by adding of 10°/o meat extract and 2.S0/o of sugar. The P. fluorescens showed high antagonistic effect to Ralstonia solanacearum and Sclerotium rolfsii in all of modified liquid organic wastes media. Survival and antagonisctic activity of P. fluorescens in modified organic liquid wastes stored at S°C or room temperature were 12 weeks. In vivo antagonistic and plant growth promoting activity showed that P. fluorescens grown in liquid organic waste suppressed the incidence of stem rot diseases caused by Sclerotium rolfsii and increased the vigor of plant growth on watermelon. Formulation of the P. Fluorescens grown in modified coconut water gave the best performance of P. fluorescens in supppressing of plant diseases and inducing plant growth. The product of BeMOR(e) (beneficial microorganism) from the result of this research will be proposed to be patented.

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