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Fatardho Zudri
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Jl. Meranti, Kampus IPB Dramaga, Bogor 16680
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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
Analisis Genetik Populasi F2 Hasil Persilangan Sorgum Lokal Indonesia dengan Varietas Unggul Baru Rini, Erin Puspita; Marwiyah, Siti; Wirnas, Desta; Trikosoemaningtyas
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 50 No. 3 (2022): 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 (581.942 KB) | DOI: 10.24831/jai.v50i3.44699

Abstract

Analisis genetik dan pola pewarisan pada karakter agronomi dan hasil diperlukan dalam merencanakan program pemuliaan dan seleksi yang akan dilakukan. Penelitian ini bertujuan untuk memperoleh informasi mengenai keragaan agronomi dan hasil, aksi gen, keragaman genetik dan heritabilitas pada populasi F2 hasil persilangan varietas lokal dengan varietas berdaya hasil tinggi. Penelitian dilaksanakan dari bulan Agustus-November 2021 di Dramaga, Bogor. Material genetik yang digunakan adalah populasi F2, tetua betina dan jantan serta sepuluh genotipe pembanding. Hasil penelitian menunjukkan karakter kualitatif pada F2 cenderung lebih mirip tetua betina. Karakter hari berbunga, tinggi tanaman, diameter batang, panjang daun, panjang dan diameter malai, bobot malai basah dan kering dikendalikan oleh sedikit gen dengan aksi gen aditif. Karakter jumlah dan lebar daun serta bobot biji per malai dikendalikan oleh aksi gen epistasis komplementer. Bobot basah dan kering malai berkorelasi positif (0.9 dan 0.95) dengan bobot biji per malai dengan nilai h2bs (0%). Karakter panjang dan diameter malai dapat digunakan untuk seleksi tidak langsung karena kedua karakter berkorelasi positif (0.67 dan 0.7) dengan bobot biji per malai serta memiliki h2bs tinggi (90 dan 80%). Kata kunci: aksi gen, keragaman, produktivitas, varietas lokal
Application of Trichoderma sp. and PGPR for preventing downy mildew incidence on sweet corn Purwanti, Eny Wahyuning; Wahyudi, Diki; Hamyana
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (336.934 KB) | DOI: 10.24831/ija.v51i1.41697

Abstract

Downy mildew is a disease caused by the fungus Peronosclerospora maydis. Application of biological agents to control downy mildew is a kind of environmentally friendly control method, that widely promoted recently. Trichoderma sp. and plant growth promoter rhizobacteria (PGPR) are root symbionts, which can induce plant resistance against disease infection. This study aimed to determine the effective application of Trichoderma sp. combined with various concentrations of rhizobacteria to control downy mildew. This study used a completely randomized design (CRD) method with 6 treatments and 5 replications. The treatment was the concentration of rhizobacteria consisting of P0 (control) = without treatment, P1= 15 mL L-1. P2 = 30 mL L-1. P3 = 45 mL L-1. P4 = 60 mL L-1 and P5 (positive control) = seed treatment with 5 g kg-1 dimetomorf fungicide. Each rhizobacteria suspension was mixed with Trichoderma sp. solution as much as 15 mL L-1. The parameters observed consisted of plant height (cm), number of leaves, disease incidence (%), and disease severity (%). The results showed that the combination of Trichoderma sp. and rhizobacteria of 60 mL L-1 was able to inhibit the incidence of the disease up to 66.53% and the severity of the disease up to 89.84%. Keywords: bacteria, concentration, downy mildew, sweet corn, Trichoderma sp.
Yield component evaluation of mutated sugarcane at first and ratooning plantations Ariyanto, Fimas; Ubaidillah, Muhammad; Hartatik, Sri
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (231.955 KB) | DOI: 10.24831/ija.v51i1.41860

Abstract

Increasing national sugar production can be done by developing new varieties of sugarcane varieties with high potential yields. To ensure profitability and sustainability, however, the new varieties should be accompanied by data on their ratooning ability. This study aimed to evaluate the stability of the yield component of ratooning sugarcane resulting from mutations. The experiment was arranged using a factorial randomized complete block design with the first factor being four genotypes of sugarcane (G) consisting of three mutant genotypes with codes M3.2, M3.3, M3.4 and one original Bululawang genotype (BL). The second factor was ratooning (K) which consisted of three levels, namely first plant (TP), first ratoon (TK1) and second ratoon (TK2). The combination of treatments was repeated 4 times so that 48 unit combinations were obtained. One unit consisted of 28 cane clumps divided into 4 rows. The results showed that the ratooning factor had a significant impact on the value of the proportion of sucrose produced by the mutant sugar cane genotype. The ratooning ability of mutant genotypes to produce sucrose was recorded above 75%. All genotypes of mutant had superior characters compared to non-mutant based on stalk weight and percentage of sucrose. Keywords: Bululawang, morphology, mutant, ratoon, sugar
Seed invigoration using ultrafine bubble water to increase the vigor of true shallot seed (Allium ascalonicum L.) Raga, Yuan; Widajati, Eny; Purwanto, Yohanes Aris
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (303.794 KB) | DOI: 10.24831/ija.v51i1.43000

Abstract

True shallot seeds are preferable to tubers as planting materials because of their advantages in storage longevity, lower management cost, and lower seed-borne disease risk. However, environmentally limited production and seed deterioration in uncontrolled storage have limited its application. Pre-sowing hydration invigoration accelerates and synchronizes the germination of deteriorated seeds. Ultra-fine bubble water (UFBW) contains reactive oxygen species, which can advance the pre-germinative metabolism of the seed. This study examined true shallot seed invigoration using UFBW. The experiment was conducted in a two-factor of randomized complete block design. The first factor was initial seed vigor based on the vigor index with six levels, i.e., 24, 15, 13, 12, 10, and 9%. The second factor was the invigoration treatment of UFBW (8 and 23 ppm dissolved oxygen concentrations) with two durations (24 and 48 h), 50 ppm GA3, and 3% KNO3 (24 h). UFBW with 23 ppm invigoration for 48 h improved seed vigor based on all vigor parameters. The GA3 50 ppm treatment is the most effective in increasing seed vigor. Keywords: dissolved oxygen; pre-sowing hydration; reactive oxygen species; seed viability; seed vigor
Rice variety identification system based on drone images to support seed certification process Ardiyansah, Ardo; Zamzami, Ahmad; Wulandari
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (731.126 KB) | DOI: 10.24831/ija.v51i1.44111

Abstract

Utilization of technology can be a solution in the process of supervising certified seeds, especially at the stage of field inspection, which is faster and more efficient. This study aimed to develop a drone image-based rice variety system to support the inspection process for seed certification. The research was conducted from March – July 2022. The rice plants of IPB 3S and Inpari 32 varieties located in Karawang, West Java were observed for their agronomic characteristics. The images of the two varieties were taken using a drone and augmented and cropped. The overall image obtained was 80% used as training data, 20% as data validation, and 10% as test data. The variety identification system was built using a model by applying the convolutional neural network (CNN) algorithm. The performance of the model was observed through accuracy, precision, recall, and F1-Score. All agronomic characters justified that the two varieties used were different. This study produced three CNN models that could accurately identify the varieties of IPB 3S and Inpari 32 with an accuracy rate of 99.52% to 100%. Drone imaging is prospective for field inspection process of seed certification. Keywords: CNN, deep learning, image processing, seed production, unmanned aerial vehicle
Relay-cropping soybean-maize in saturated soil culture increases efficiency of land use and nitrogen fertilizer Suntari; Ghulamahdi, Munif; Maya Melati
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (376.193 KB) | DOI: 10.24831/ija.v51i1.44905

Abstract

Relay-cropping in saturated soil cultivation could increase land efficiency, but its effect on land use and nitrogen fertilizer efficiency is unclear. The research objective was to evaluate the land productivity of the relay-cropping system by calculating the land equivalent ratio (LER) and the effectiveness of nitrogen fertilizer, and by determining the effect of previous soybean biomass. The experiment was arranged in a three-factor randomized complete block design. The first factor was the cropping patterns of soybean and maize, i.e., relay-cropping soybean-maize and maize monoculture. The second factor was the maize varieties, i.e., Pioneer 27 and Sukmaraga. The third factor was the application of N fertilizer with 4 doses: 0, 50, 100, and 150 kg ha-1. The results showed that the application of soybean biomass increased maize yield by 7.24%. Pioneer 27 produced a higher yield than Sukmaraga, and the dose of N fertilizer of 150 kg ha-1 resulted in the highest yield of 7.50 tons ha-1. The highest LER of 1.85% was achieved in the relay-cropping by applying N fertilizer 150 kg ha-1. The experiment concludes relay-cropping after soybean save land by about 85% and save N fertilizer by 33.3%. The reduction of N fertilizer application by 33.3% (100 kg N ha-1) reduced corn cob productivity by 13.3%, and is not significantly different from 150 kg N ha-1. Keywords: chlorophyll, LER, plant residue
Growth and production of beneng taro genotypes (Xanthosoma undipes K. Koch) on different soil organic carbon Alghifari, Ahmad Fadli; Santosa, Edi; Susila, Anas Dinurrohman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (312.203 KB) | DOI: 10.24831/ija.v51i1.44975

Abstract

Beneng taro is a perennial of Araceae and becomes a new commodity in Indonesia. The research aimed to evaluate the growth and yield of beneng taro on various statuses of soil organic carbon (SOC). Three genotypes of taro, i.e., beneng Banten, beneng Bondowoso, and East Nusa Tenggara (NTT) fodder taro were planted in three SOC levels, i.e., 1.79, 2.94, and 4.09% in a randomized split block design in the Leuwikopo Experimental Station, IPB from April to December 2021. SOC was designed by adding cow manure. The results showed that there was no interaction between genotypes and SOC. The increase in SOC from 1.79 to 4.09% did not significantly affect growth but significantly affected the diameter and yield of beneng and NTT fodder taro. An increase in SOC above 1.79% markedly decreased tuber diameter, but conversely increased fresh tuber weight. Tuber weight increased by 5.6% and 12.1% with an increase in SOC from control to 2.94% and 4.09%, respectively. The increase in tuber weight was supported by the trend of increasing biomass weight and the number of roots. SOC source in the present study was cow manure which may also contribute some nutrients, therefore, further research is needed using neutral organic carbon sources to determine the effect solely. Keywords: Araceae; SOC; growth; manure; NTT taro; talas beneng Banten
Growth, yield, and land use efficiency of soybean-maize relay cropping under saturated soil culture on tidal swamps Sahuri, Sahuri; Munif Ghulamahdi; Suwarto
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (591.897 KB) | DOI: 10.24831/ija.v51i1.45811

Abstract

More than 75 percent of households growing maize and soybean adopts the monoculture method. The relay cropping of soybean-maize is a strategic choice to increase the planted area and productivity of these two commodities' sustainability in tidal swamps. The research aimed to study the land equivalent ratio (LER), determine the best planting spacing and soybean varieties, and the best relay cropping of maize on saturated soil culture in tidal swamps. The experiment was on mineral soils with type B tidal swamps, in Banyuasin, South Sumatra, from July to December 2022. The experiment used a three-factor randomized complete block design with three replications. The first factor was soybean varieties: Argomulyo, Gepak Kuning, Detap 1, and Demas 1, the second factor was soybean planting spacing: 78 cm x 15 cm x 12.5 cm and 60 cm x 40 cm x 10 cm, and the third factor was the relay cropping of maize: 30 and 45 days after planting (DAP) of soybeans. Results showed that plant height, number of leaves, number of branches, filled pods, 100 seeds weight, and seed yield were influenced significantly by varieties. Demas 1 variety produced a higher seed yield, with relay cropping and monoculture, i.e., 4.2 tons ha-1 and 4.1 tons ha-1, respectively. Plant height, stem diameters, number of leaves, 100 grains weight, and grain yield in maize were significantly higher at soybean planting spacing of 78 cm x 15 cm x 12.5 cm and relay cropping at 30 DAP. The LER values > 1, indicated that relay cropping increased land productivity as compared to monoculture cultivation. The LER at relay cropping of 30 DAP was significantly highest for Argomulyo and Detap 1 varieties, i.e., 1.8 and 1.8, respectively. Keywords: Land equivalent ratio, planting spacing, relay cropping, saturated soil culture, tidal swamps
Leaves production and its flavonoids content of moringa (Moringa oleifera Lam.) from fulvic acid treatment Kailola, Joan Joulanda Grace; Santosa, Edi; Aziz, Sandra Arifin; Dinarty, Diny; Widodo, Winarso Drajad
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (339.264 KB) | DOI: 10.24831/ija.v51i1.45864

Abstract

Moringa is drought tolerant and its leaf is traditionally used as a vegetable. Recently, the leaf is used commercially in traditional medicine and functional foods. Fulvic acid is a kind of plant growth regulator derived from humic acid and is considered a fertilizer in sustainable agriculture. The objective of the research was to determine the effect of fulvic acid concentration on the growth, biomass, phosphorus and flavonoids contents of moringa seedlings. The experiment was conducted from July 2020 to January 2021 at Leuwikopo Experimental Station, Bogor. The treatment was arranged in a randomized block design consisting of two factors, i.e., fulvic acid level (0, 1, 2, 3, and 4 mL L-1) and moringa accessions (East Nusa Tenggara-ENT and Leuwikopo-LWK). Observation focused on growth and biomass, total flavonoids, and phosphorus contents of leaves. The results showed that fulvic acid enhanced leaf growth, and plant height. On the other hand, the fulvic acid application had no significant effect on biomass production, total flavonoids, and phosphorus contents of moringa leaves. Accessions expressed different responses to fulvic acid levels, i.e.e, the fulvic acid of 1 mL L-1 seemed favorable for ENT accession while 2 mL L-1 was favorable for LWK accession as indicated by the level of flavonoid content. Therefore, fulvic acid is beneficial in moringa cultivation, particularly for ENT accession. It is interesting to evaluate the fulvic acid application on moringa trees grown in ENT where soil moisture is considered low. Keywords: accession; phosphorus; seedling; humic acid; East Nusa Tenggara; vegetable
Mutation site identification confers glyphosate resistance in goosegrass (Eleusine indica L. Gaertn) from Jonggol, Bogor, Indonesia Ferdinans, Ferdinans; Guntoro, Dwi; Ardie, Sintho Wahyuning
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 51 No. 1 (2023): Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
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 (403.132 KB) | DOI: 10.24831/ija.v51i1.45944

Abstract

Glyphosate resistance is a serious problem in weed control, especially in oil palm plantations. However, evaluation of suspected resistant weeds such as Eleusine indica L. Gaertn at the gene level is still scarce in Indonesia. Here, target-site resistance to glyphosate of the EPSPS gene was evaluated. The objective of this study was to identify glyphosate resistance caused by mutation points in goosegrass biotypes from oil palm plantation in Jonggol, West Java, Indonesia. Bio-assay analysis was carried out by planting goosegrass in pots. Glyphosate was applicated using eight-level, namely 0, 0.125x, 0.25x, 0.5x, x, 2x, 4x, and 8x, where x was the recommended dose (972 g ha-1) for three replications. Weed damage was evaluated from plant biomass and then regression analysis was performed to obtain the LD50 and resistance index. The E. indica from block V had a reduced sensitivity status with 2.343 value of resistance index, and those from Block II biotype had a sensitive status with 1.588 resistance index. Alignment of the EPSPS gene showed no mutation was observed at two target-points, indicating that increasing resistance of E. indica in the study site could be controlled by other factors. Nevertheless, E. indica of block V biotype had a resistance potential due to the highest LD50. It is necessary to evaluate further the possibility of mutation in other target-points of the EPSPS gene. Keywords: bio-assay; EPSPS; LD50; resistance index; sequencing; target-site resistance

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