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INDONESIA
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
ISSN : 20852916     EISSN : 23373652     DOI : -
Aims and Scope Aims Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia), the official journal of the Indonesian Society for Agronomy, publishes primary research paper, review article, policy analysis and research notes and preliminary results in all areas of agronomy. Manuscripts could be written either in English or in Indonesia. Scope Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia) covers agronomy in broad sense including plant production, genetic and plant breeding, plant physiology, plant ecology, plant biotechnology, modeling, seed science and technology and weeds science on food, horticulture, plantation, and forage crops.
Articles 971 Documents
Keragaan Hasil Beberapa Galur Harapan Kacang Tanah di Lahan Sulfat Masam dan Lahan Lebak Dangkal Koesrini, ,; Noor, Aidi; Sumanto, ,
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (51.826 KB) | DOI: 10.24831/jai.v34i1.1269

Abstract

High soil acidity is one of the problems caused low groundnut productivity on South Kalimantan. Using adaptive variety is one effort for increasing yield. The objective of this research was to determine the yield performance and tolerance of groundnut to soil acidity on swamp areas. This research was conducted on acid sulphate soil at Jajangkit Timur-Batola-South Kalimantan on wet season of 2003/04 and on swamp area at Setiap-Pandawan-Hulu Sungai Tengah-South Kalimantan on dry season of 2003. This research was arranged in Randomized Complete Block Design with three replications. Twelve genotypes and 3 check varieties i.e. Jerapah, Singa and Lokal variety, were tested on those regions.The result showed that some groundnut promising lines had good performance on acid sulphate soil and swamp areas. Performance of yield and its component  were influenced by soil environment, i.e. soil acidity, Ca content and Al saturated. The best five promising lines on acid sulphate soil were GH-3, GH-4, GH-5, GH-8 and GH-9, while on swamp area were GH-2, GH-5, GH-6, GH-9 and GH-11. Two promising lines, i.e. GH-5 and GH-9, performed better on both areas.   Key words: Performance, groundnut, swamp areas
Pemilihan Karakter Agronomi untuk Menyusun Indeks Seleksi pada 11 Populasi Kedelai Generasi F6 Wirnas, Desta; Widodo, Imam; Sobir, Sobir; Trikoesoemaningtyas, Trikoesoemaningtyas; Sopandie, Didy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.405 KB) | DOI: 10.24831/jai.v34i1.1270

Abstract

High-yielding variety is one of the targets in soybean breeding program. High-yielding variety could be developed through simultaneous selection. Simultaneous selection  using selection index was more efficient  than selection based on an individual trait only.  Objective of  the research was to select agronomic characters for construction selection index  on 11 soybean populations F6 generation based on correlation analysis, path analysis, and heritability.  The correlation analysis  showed that  number of branch,  number of total nod, number of filled pod, number of unfilled pod, number of total pod, and percentage of filled pod have positively and significantly correlated with  yield per plant.  Based on  path analysis, characters number of branch, number of unfilled pod, and number of filled pod have positive direct on yield per plant.   The result also showed that  number  of filled pod has maximum positive direct effect on yield per plant.  Generally, number of total nod, number of filled pod, number of total pod, and percentage of filled pod have higher heritability  than other characters.   Key words: Soybean, correlation, path analysis, heritability, selection index
Peningkatan Toleransi Kedelai Sindoro terhadap Kekeringan Melalui Seleksi In Vitro Husni, Ali; Kosmiatin, M.; Mariska, Ika
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.094 KB) | DOI: 10.24831/jai.v34i1.1271

Abstract

In vitro selection of embryogenic cell mass is one alternative to improve drought tolerance in plants. Embryogenic cell callus of soybean were radiated by Gamma ray (400 rad) to produce mutation. The radiated cell  were tested with PEG (0, 10, 20 and 30 %) for drought stress tolerance. After selection, cells which tolerant to PEG were regenerated to produce somatic embryo structure, somatic seed and plantlet. Acclimatization was done in a greenhouse and analysis of proline was done at generation 1 (G1). The purpose of the experiment was to get soybean somatic seed which tolerant to drought stress. Results of experiment showed that 39.7 % embriogenic callus were produced. The higher the concentration of PEG, the higher the death of cell/callus. The rate of producing somatic embryo structure was 4.9 at 0 % PEG; 2.85 at 10 % PEG; 1.6 at 20% PEG and 0.6 at 30% PEG. Number of somatic seed which developed in regeneration medium (S11) were 79 from 0% PEG;  35 from 10% PEG; 29 from 20% PEG, and 15 from 30% PEG. Somatic seed produced 15 planlets from PEG 0%; 6 planlets from PEG10%; 4 planlets from PEG 20%. Based of proline content, all of G1 somaclones were more tolerant  than the mother plant.     Key words : Soybean, in vitro selection, PEG, regeneration, acclimatization and dry land.                     
Aktivitas Nitrogenase, Serapan Hara dan Pertumbuhan Dua Varietas Kedelai pada Kondisi Jenuh Air dan Kering Ghulamahdi, Munif; Aziz, Sandra Arifin; Melati, Maya; Dewi, Nurwita; Rais, Sri Astuti
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (48.798 KB) | DOI: 10.24831/jai.v34i1.1272

Abstract

The objective of this experiment was to study nitrogenase activity, nutrient uptake, and growth of two soybean varieties under saturated and dry soil conditions. The experiment was conducted in the plastic house at IPB Experimental Station, Babakan Sawah, Bogor, from August to November 2001. The experiment used the complete randomized design with four replications. The first factor was variety, consisted of Wilis and Bromo. The second factor was water condition, consisted of continuous saturated, saturated-dry, and dry conditions. Wilis and Bromo were not significantly different in nitrogenase activity; P and K uptake; nodule, stalk, leaf, pod, and seed dry weight. Wilis and Bromo were significantly different in root dry weight and leaf N uptake at 3 weeks after planting. Root dry weight and leaf N uptake of Wilis was lower than those of Bromo.The levels of nitrogenase activity, nutrient uptake, and plant weight under different water conditions were in the following order, from low to high, dry, saturated-dry, continuous. Under continuous saturated condition, nitrogenase activity, N uptake, P uptake, K uptake, nodule, root, stalk, leaf, and pod dry weight were 6800 %, 265 %, 320 %, 288 %, 1386 %, 362 %, 289 %, 265 %, 329 % of those under dry condition, respectively at 9 weeks after planting.    Key words:  Soybean, saturated culture, dry culture, nitrogenase activity, nutrient uptake
Pengaruh Jenis Tanaman Penolak Organisme Pengganggu Tanaman terhadap Pertumbuhan dan Produksi Tanaman Kedelai (Glycine max (L.) Merr) yang Diusahakan Secara Organik Kusheryani, Ina; Aziz, Sandra Arifin
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (48.397 KB) | DOI: 10.24831/jai.v34i1.1274

Abstract

The purpose of this research is to determine the influence of repellent plant on growth and productivity of organic vegetable soybean. This research was conducted at Leuwikopo Research Station, from September 2004 to February 2005. Randomized Complete Block Design with one factor (type of repellent plant) and four replications was used. The type of repellent plant were Marigold (Tagetes erecta), Ocimum gratissimum, andropogon (Cymbopogon nardus), and leeks (Allium fistulosum).This research showed organic soybean with repellent plant had higher productivity than conventional soybean. Organic soybean with repellent plants had higher number of branches in 5 Weeks After Plant (WAP), the pod weight/plot, and 100 seeds dry weight. Growth and production of soybean were better under organic farming system than that under conventional farming. Soybean with repellent plant had lower total disease  intensity  than conventional treatment. Soybean with Tagetes erecta as repellent plant had lower  total  disease intensity  than other repellent treatment.   Key words: Organic vegetable soybean, repellent plant, pest and bulk disease intencity.  
Pengaruh Perlakuan Rizo-bakteri Pemacu Pertumbuhan Tanaman terhadap Viabilitas Benih serta Pertumbuhan Bibit Tanaman Cabai Sutariati, Gusti Ayu Kade; Widodo, Widodo; Sudarsono, Sudarsono; Ilyas, Satriyas
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.441 KB) | DOI: 10.24831/jai.v34i1.1275

Abstract

The objectives of this experiment were to evaluate effects of seed treatment using local isolates of rhizobacteria on seed germination and seedling growth of hot pepper. Hot pepper seeds were treated with rhizobacterium isolates of Bacillus sp., Pseudomonas sp., or Serratia sp. and germinated using standard germination procedures. Subsequently, seedlings were transplanted into plastic pots containing a mixture of potting media. Germination was recorded at 7 and 14 days while seedling growth were recorded at 6 and 8 weeks after transplanting. Results of the experiments showed seed treatments using rhizobacteria significantly increased viability of the treated hot pepper seeds (percentage of increases as compared to untreated seeds in seed germination  - up to 27%, PTM 11%, vigor index 31%, SPT 29%, KCT 29%, and reduction of T50 by 0.75 days). Some of the treatments also promoted growth of hot pepper seedlings. Although all of the rhizobacteria synthesized IAA, growth promoting effects of the rhizobacteria may not only be due to the synthesized growth regulator. Other factors may have involved in the possitive effects of the rhizobacteria on hot pepper seed germination and seedling growth.   Key words:  Rhizobacteria, indole-acetic acid, PGPR, vigor, viability, seedling growth
Studi Alternatif Substrat Kertas untuk Pengujian Viabilitas Benih dengan Metode Uji Diatas Kertas Purbojati, Linggar; Suwarno, Faiza C.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (49.822 KB) | DOI: 10.24831/jai.v34i1.1276

Abstract

Viability of small seed is usually tested with top of paper method using paper substrate, but filter and straw papers commonly used for substrate have become more expensive and scarce recently. The aim of this study was to find an alternative paper substrate for seed viability testing using top of paper method. The study consist of 12 experiments using 12 species i.e. pak choy, white mustard, chinese kale, cauliflower, cabbage, sesame, broccoli, green mustard, lettuce, carrot, red spinach and celery. The experiment was arranged in a Randomized Block Design with 10 replications. Sample of 50 seeds were tested on different paper substrate including straw paper, filter paper, stencil paper, CD paper and sterilized filter paper, to identify the best alternative substrate. Result of  the study showed that stencil and CD papers as a substrate for seed viability testing performed 100% similarity compared to straw paper. When filter paper was used as standard substrate, there wasn't any paper has 100% similarity, but straw paper showed the highest (97.22%) followed by stencil paper (88.87%). Based on less than 5% coefficient of variation criteria, stencil paper was the best with 61.11% uniformity of seed viability data followed by straw paper (58.33%). In higher tolerance level with less than 10% coefficient of variance criteria, stencil paper was still the highest with 100% uniformity, followed by straw paper (97.22%). Stencil paper as germination substrate performed similar seed viability to the control straw and filter papers also produced high uniformity data. Stencil paper could be used for substrate viability testing of small seed with top of paper method.      Key words : Top of paper method, alternative, paper substrate, viability, coefficient of variance  
Pemanfaatan Cendawan Mikoriza Arbuskula dan Bakteri Azospirillum sp. untuk Meningkatkan Efisiensi Pemupukan pada Turfgrass Guntoro, Dwi; Chozin, M. A.; Tjahjono, Budi; Mansur, Irdika
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 1 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (81.105 KB) | DOI: 10.24831/jai.v34i1.1277

Abstract

Introduction turfgrass varieties require fertilization with high dosage, but it can contaminate environment.  The increasing  efficiency of fertilizer absorbtion was expected to reduce fertilizer requirement.  The experiment was conducted to study the effect of arbuscular mycorrhizae and Azospirillum sp. on nutrient uptake, fertilization efficiency, growth and visual quality of turfgrass.  The experiment consisted of two factors, i.e. the dosages of fertilizer and inoculant types.  The dosages of fertilizer were the relatif dosage from recommended dosage (RD) i.e 100%RD, 75%RD, 50%RD, and 25%RD.  The recommended dosage was 0.5 kg N + 1.5 kg P2O5 + 0.5 kg K2O per 100 m2/month by compound fertilizer (15-15-15).  The treatment of 100%RD without inoculant was used as control.  The inoculant types were no inoculant, arbuscular mycorrhizal fungi (AMF), Azospirillum sp., and AMF+Azospirillum sp.  Factorial experiment was arranged in Randomized Block Design with three replications.  The results showed that interaction between inoculant type and dosage of fertilizer affected nutrient uptake, fertilizer efficiency, growth, and visual quality.  AMF inoculation and 25%RD increased shoot N uptake and N fertilizer efficiency, compared with control.  Azospirillum sp. inoculation at 75% RD increased shoot N concentration, but did not affect on shoot N uptake and N fertilizer efficiency compared with control.  Inoculant did not affect shoot P concentration, shoot P uptake, and P fertilizer efficiency.  Azospirillum and AMF+Azospirillum inoculation increased shoot K concentration.  AMF+Azospirillum inoculation and 100%RD increased shoot N concentration and shoot N uptake, compared with control.    Key words : Arbuscular mycorrhizal fungi, Azospirillum, fertilizer efficiency, nutrient uptake, turfgrass.
Identifikasi Somaklon Padi Gajahmungkur, Towuti dan IR 64 Tahan Kekeringan Menggunakan Polyethylene Glycol Lestari, Endang Gati; Mariska, Ika
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 2 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.009 KB) | DOI: 10.24831/jai.v34i2.1280

Abstract

The drought stress tolerant and high yielding rice is needed in upland rice system. The changing global climate makes dry season longer, resulting in the reduction of rice production. There should be an effort to introduce new variety of high-yielding and drought tolerant rice.  In this attempt, research was conducted to improve the genetic of Indica rice, particularly Gajahmungkur, Towuti and IR 64 varieties in order to find the somaclones with the characteristics above. As an approach, gamma-ray mutative induction was applied to be followed by selection in PEG. The regenerated shoot from the irradiated callus was then selected and acclimatisized in the greenhouse to obtain eighty three somaclones from the three varieties. PEG (molecular weight 6000) was applied to obtain the drought-tolerant somaclone. PEG was a selective agent used by which populations could be selected in a short time. Treatment with  20% PEG (equals to osmotic potential 1.2 Mpa) on the rice produced 16 somaclones from Gajahmungkur, 12 from Towuti and 18 from IR 64 putatively drought tolerant.   Key words : Oryza sativa, drought tolerance, PEG
Evaluasi Pertumbuhan dan Produksi Padi Gogo Haploid Ganda Toleran Naungan dalam Sistem Tumpang sari Sasmita, Priatna; Purwoko, Bambang S.; Sujiprihati, S.; Hanarida, I.; Dewi, I. S.; Chozin, M. A.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 34 No. 2 (2006): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (59.05 KB) | DOI: 10.24831/jai.v34i2.1283

Abstract

Three doubled haploid (DH) upland rice lines obtained from anther culture having good agronomic and shade  tolerant traits were planted in an intercropping with maize. Their  monoculture systems were also included.  Those lines were GI-8, IG-19, and IW-56. Jatiluhur was also treated similar as shade tolerant control cultivar. The experiment was arranged in randomized complete block design with three replications. The treatments consisted of eight intercropping systems, four monoculture systems of rice, and two monoculture systems of maize. The result showed that all of tested DH lines were consistently shade tolerant under intercropping condition. The characteristics was represented by  similar growth and grain yield with  Jatiluhur under  intercroping system. The highest grain yield was 2.49 t/ha resulted by GI-8 and IG-19 lines  at the time that Jatiluhur was 2.36 t/ha. The intercropping of DH lines with  maize also showed the Land Equivalent Ratio (LER) =1.33-1.58, while Jatiluhur LER = 1.25-1.28, indicating that agronomically they were more advantageous than those in the monoculture system.   Key words :  Doubled haploid,, intercropping system, shade tolerant lines

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