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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
Optimasi Dosis Pemupukan pada Budidaya Cabai (Capsicum annuum L.) Menggunakan Irigasi Tetes dan Mulsa Polyethylene Alviana, Vivit F.; Susila, Anas D.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (51.932 KB) | DOI: 10.24831/jai.v37i1.1391

Abstract

Chili peper (Capsicum annuum L.) var. Prabu was grown with polyethylene mulched and drip irrigation system on Andosol Sukamantri soil with low pH (4.5), low C-Organic (1.79%), low N-total (0.18%), high K content (0.76 me/100 g), and very high soil P2O5 concentration (190 ppm) to optimise fertilizer rate for drip irrigated and polyethylene mulched crop management system. This research was conducted from March - July 2004 at Danasworo Hydrogarden Ciapus Bogor. This research was arranged in Randomized Completely Block Design with four levels of fertilizer rate (0=control; 1x recommendation rate =151 kg N/ha, 69 kg P2O5/ha, 120 kg K2O/ha; 2x recommendation rate = 302 kg N/ha, 138 kg P2O5/ha, 240 kg K2O/ha; 3x recommendation rate = 453 kg N/ha, 207 kg P2O5/ha, 360 kg K2O/ha). Hundred percent of P, 50% N and K were applied pre-plant and 50% N and K were fertigated 10 times. The result showed that plant height and plant dry weight increased linearly with fertilizer application from 0 to 3x recommendation rate. Total marketable yield was quadratically increased with fertilizer application from 0 to 3x recommendation rate. Base on total marketable yield, optimum recommendation rate for chili with drip and polyethylene mulch were 237.07 Kg N/ha, 108.33 Kg P2O5/ha, and 188.4 Kg K2O/ha.   Key words :  Chili, fertilizer, drip irrigation, polyethylene mulch, fertigation
Pengaruh Bahan Amelioran terhadap Pertumbuhan dan Hasil Tiga Varietas Buncis di atas Sistem Surjan pada Lahan Sulfat Masam Potential Koesrini, ,; William, Eddy
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (48.015 KB) | DOI: 10.24831/jai.v37i1.1392

Abstract

High soil acidity is one of the problems causing low snap bean yield on potential acid sulphate soils. Using tolerant variety and applying ameliorant were several efforts to increase snap bean yield on potential acid sulphate soils. The objective of this research was to evaluate the effect of ameliorant application on plant growth, and yield of three snap bean varieties on potential acid sulphate soils. This research was conducted on potential acid sulphate soil on surjan system at Experimental Station Belandean in Barito Kuala regency of South Kalimantan province in the dry season of 2005. The experiment was arranged in split-plot design with three replications. The main plots were ameliorant application, i.e. control, liming 1 t.ha-1 + manure 2.5 t.ha-1 , and liming 2 t.ha-1 + manure 5 t.ha-1, and the sub plots were three snap bean varieties, i.e. Lebat, Perkasa and Bravo. The result showed that the plant growth and yield of snap bean were affected by ameliorant application. Liming  with dosages of 1.0 t.ha + manure 2.5 t.ha-1 increased yield 2 581 kg.ha-1 or 81.5 % higher than control. All varieties showed the same yield on acid sulphate soil.   Key words:  Ameliorant, snap bean, potential acid sulphate soil
Efektivitas Strangulasi terhadap Pembungaan Tanaman Jeruk Pamelo ‘Cikoneng’ (Citrus grandis (L.) Osbeck) pada Tingkat Beban Buah Sebelumnya yang Berbeda Thamrin, Muhammad; Susanto, Slamet; Santosa, Edi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (48.288 KB) | DOI: 10.24831/jai.v37i1.1393

Abstract

Biannual bearing fruit is a common phenomenon in tropical fruit trees. However, effectiveness of flowering induction on those fruits is still lack of study. The ojective of the research was to study the effectiveness of flowering induction on pummelo of different fruit load on previous year. Field experiment was conducted at farmer's orchad Bantarmara village, Cisarua, Sumedang Region, West Java (300 m above sea level) from August 2007 to April 2008. Experiment was carried out using Completely Randomize Block Design. Experiment was combination of high crop load and less crop load with strangulation position at main stem and primary branches. The results showed that crop load of previous year (higher and less) with strangulation position at primary branches had significant response to the number of  flower clusters, flower buds, bloming flower, fruits formed, and fruit sets as compared to control, when strangulated at primary branches. Nevertheless,  amount of fruit sets, level of greenness leaf and leaf area seened were not determined by fruit load non position of strangulation. This finding implies that fruit load management is an important factor in determining the success of flowering induction using strangulation.   Key words: fruit load, strangulation, pummelo, flowering induction
Simpanan Biji Gulma dalam Tanah di Perkebunan Teh pada Berbagai Tahun Pangkas Santosa, Edi; Zaman, Sofyan; Puspitasari, Intan Dewi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (65.257 KB) | DOI: 10.24831/jai.v37i1.1394

Abstract

Through understanding on seed bank, tea plantation manager enables to plan better weed control. The objective of the study was to identify seed bank of weeds at different ages of tea plantation after prunning. The study was conducted at Perkebunan Teh Tambaksari, Subang, Indonesia. Soil samples were collected from tea field of different pruning years (TP0-2 months after pruning, TP1-16 months after pruning, TP2- 28 months after pruning, and TP3-40 months after pruning) and then watered regularly and exposed to direct sunshine to stimulate propagule germination. Results showed that seed banks were found in all soil samples, indicated that effectiveness of weed control was low. The highest seed bank was found at TP1. Most seed bank was seed, they were Ageratum conyzoides which dominated field of TP0 (SDR 36.58%), TP1 (35.90%), TP2 (41.79%) and TP3 (24.82%), followed by Borreria latifolia with SDR values were 19.50%, 27.26%, 29.40% and 16.14%, respectively. Some species stored both vegetative and generative propagules such as Cyperus sp. and Cyperus cyperoides with SDR value 20.33 % only dominated at age of TP0. Seed bank at area of TP1 and TP2 had high value of community coefficient, i.e., 77.22%, showed both fields had high similarity. This finding implies that effective weed control increases when the control is conducted before the weeds bear seed, where mostly less than 45 days after emergence. Furthermore, thirteen weeds had no seed bank in the field, indicates that weed problem in tea plantation was composed of seed bank and weed propagules from other sites.   Key words:  Pruning year, seed bank, tea plantation, weed control
Kajian Pemupukan NPK dan Jarak Tanam pada Produksi Antosianin Daun Kolesom Mualim, Leo; Aziz, Sandra Arifin; Melati, Maya
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (97.858 KB) | DOI: 10.24831/jai.v37i1.1395

Abstract

The effects of NPK fertilization and plant spacing on leaf anthocyanin production of Talinum triangulare (Jacq.) Willd. were studied. A factorial experiment was used to study the combination of two factors i.e. NPK fertilization (no fertilization, NPK, NP, NK, and PK) and plant spacing (100 cm x 45 cm, 100 cm x 60 cm, 100 cm x 75 cm). These combinations were arranged in randomized block design, with three replications. The result showed that there was no effect of plant spacing and interaction between two factors. Application of NP (minus K) fertilizer gave the lowest value for almost all parameter except shoot/root ratio. This result suggested that fertilization played significant role in increasing anthocyanin production and the limiting factor was potassium.   Key words: Talinum triangulare, NPK  fertilization, anthocyanin production
Induksi Mutasi pada Stek Pucuk Anyelir (Dianthus caryophyllus Linn.) melalui Iradiasi Sinar Gamma Aisyah, Syarifah Iis; Aswidinnoor, Hajrial; Saefuddin, Asep; Marwoto, Budi; Sastrosumarjo, Sarsidi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (620.001 KB) | DOI: 10.24831/jai.v37i1.1396

Abstract

It has been a common knowledge that LD50 is commonly used in estimating optimal doses of gamma irradiation in a breeding program. This research was aimed at observing radiosensitivity of five carnation's genotypes to gamma irradiation, to find the LD50 of carnation's cuttings, and to obtain solid mutants from five numbers of Carnation.  For cuttings, carnation genotype number 10.8 was the most insensitive to gamma rays, whereas number 24.15 was the most sensitive one.  LD50 of carnation's cuttings were obtained around 49 -72 gray. There were 19 mutants produced from this treatment. The desired mutans were mostly produced from the treated 24.1 genotype whereas the character mutans were mostly observed in MV2 generation. Irradiation treatment on genotype 24.1 produced most stabile mutans while the less was in genotype 24.14.  The produced mutants were qualitatively different in colour and petal shape, and stabile till third generation.   Key words: LD50, gamma irradiation, induced mutation, carnation.
Pengaruh Jenis Mulsa terhadap Kapasitas Penambatan Spesifik Nitrogen Cemara Udang (Casuarina equisetifolia Linn.) pada Kondisi Tempat Tumbuh yang Berbeda Triyogo, A.; Sumardi, ,; Winastuti, D. A.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (143.311 KB) | DOI: 10.24831/jai.v37i1.1397

Abstract

Nitrogen fixation's processes on the plants are determined by numbers of roots nodule formed on rootery system and by their ability to fix the nitrogen. The activity of root nodule in nitrogen fixation's processes gives a great contribution for the plant growth. The aim of this research is to study the effect of mulch types on the forming root nodule and also the capacity of air nitrogen specific fixation of C. equisetifolia Linn. with different site conditions. This research use split-split plot design with factorial treatment. The plants of C. equisetifolia Linn. were planted on three different sites using three kinds of mulch. The (approach) method used to find out the forming of root nodule was to count  the numbers and the dry weight of root nodule, while the measurement of the capacity of root nodule on the nitrogen fixation used the Acethylene Reduction Capacity method (ARA). The result of this research showed that the site of underground growth white sand beach had the best forming root nodule. For the mulch treatment, straw mulch showed the best nitrogen fixation ability, that was 13.8x10-9n g N2/g nodule dry weight/days and for interaction treatment, straw mulch at lime stone with inoculation showed the highest nitrogen fixation that was 26.45x10-9n g N2/g nodule dry weight/days.   Key words: nitrogen specific fixation, Casuarina equisetifolia Linn., growth
Induksi dan Multiplikasi Tunas Jarak Pagar (Jatropha curcas L.) Secara In Vitro Lizawati, ,; Novita, Trias; Purnamaningsih, Ragapadmi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 1 (2009): 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 (368.045 KB) | DOI: 10.24831/jai.v37i1.1398

Abstract

The conventional propagation of physic nut (Jatropha curcas) is difficult, because it requires a high number of mother plant, which is very limited. In vitro culture is an alternative technique to conventional one to solve the problem.  An experiment was done to obtain the best in vitro culture media for shoot induction and multiplication. This research was separated into two steps, (1) in vitro induction of explant growth, and (2) in vitro shoot multiplication.  Results showed that medium of WPM + 2.0 ppm BAP induced shoot and leaf better than the control.  The highest number of leaf axillary's multiplication was obtained from the medium WPM + 2.0 ppm BAP + 0.1 ppm NAA. Various medium formulations for the induction and multiplication of shoots resulted in highly leaf fall.  The use of DKW + 2.0 ppm BAP + 0.4 ppm TDZ + 3.0 ppm AgNO3 medium has effectively induced shoot multiplication and reduction of dehydrated leaf. Meanwhile, the used of DKW medium supplemented with 5 ppm kinetin resulted in the best shoot elongation.   Key words :  Induction, in vitro, Jatropha curcas, shoot, multiplication
Keragaman Genetik dan Karakter Agronomi Galur Haploid Ganda Padi Gogo dengan Sifat-Sifat Tipe Baru Hasil Kultur Antera Herawati, Reny; Purwoko, Bambang S.; Dewi, Iswari S.
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): 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 (57.979 KB) | DOI: 10.24831/jai.v37i2.1399

Abstract

The development  of new plant type of upland rice in relatively short time can be done by using anther culture technique. The technique has been recognized as a rapid and efficient technology for plant improvement. Plant materials  used in this research were 320 s doubled haploid lines derived from anther culture and their 4 parents   namely Fatmawati, SGJT-28, SGJT-36 and Way Rarem. Observation was conducted on  plant height, number of productive tillers, days of flowering and maturity, length of panicle, number of grains per panicle,  number of filled grains per panicle, percentage of unfilled grains, weight of 1000 grains and weight of grains per hill. The result showed that there were broad variations in the agronomic characters of doubled haploid lines. There were 58 upland rice lines can be obtained with new plant type characters (NPT).  Several lines showed superior characters. Line P6-105, P3-134, P3-135, P3-175 had productive tiller more than that of parental, P3-160, P3-196, P6-274  had long panicle, number of grain per panicle and low percentage of unfilled grain,  P3-135, P6-271, P6-274, and P6-276 had weight of grains per hill. These lines had potential as new plant type of upland rice. Length of panicle, number of grains per panicle,  number of filled grains per panicle, and weight of grains per hill had high heritability and wide genetic variability.   Key words: Genetic variability,  doubled haploid, anther culture, upland rice  
Adaptasi dan Stabilitas Hasil Galur-Galur Padi Beras Merah pada Tiga Lingkungan Tumbuh Aryana, I Gusti Putu Muliarta
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): 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 (43.335 KB) | DOI: 10.24831/jai.v37i2.1400

Abstract

The aim of this research was to study the adaptation and yield stability of red rice genotype obtained from back cross selection in three different growing environments.  Twenty genotypes of red rice obtained from back cross selection and three parents (Piong, Angka, Kenya) were tested for their potential yield in three different growing environments in the rainy season 2006/2007 and dry season 2007. The experiment used randomized completely block design with three replications in each environment. Each genotype was grown on 5.5 m x 1.25 m plot with plant spacing of 25 cm x 25 cm and only 1 plant per clump. Irrigation in upland was based on the availability of rain water, water management in paddy's field followed a normal lowland rice irrigation technique, and in drought environment, soil water content was maintained  at 25 - 30% of soil available water. To analysis the  adaptation and the yield stability, analysis of variant AMMI model and Biplot were used. The results indicated that the genotype showing the most stable yield was G5(A4), and this genotype produced 3.60 grain yield ton/ha. Genotype having special adaptation in drought stressed environment were G2(A1) and G3(A2) with average grain yield of 2.93 and 2.11 ton/ha, respectively. Genotype having special adaptation in upland environment were G1(A0) and G4(A3) with average grain yield of 4.43 and 4.44 ton/ha, respectively. Genotype having special adaptation in technical irrigation area was G17(P15) with an average grain yield of 4.92 ton/ha.   Key words:  Adaptation, stability, red rice

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