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Fatardho Zudri
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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
Inokulasi Fungi Mikoriza Arbuskula (FMA) dan Pemupukan P untuk Meningkatkan Hasil dan Mutu Benih Cabai (Capsicum annuum L.) Agustin, Widi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): 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 (152.428 KB) | DOI: 10.24831/jai.v38i3.14967

Abstract

The research was carried out to investigate the effect of arbuscular mycorrhizal fungi (AMF) and phosphorus fertilizer on yield and seed quality of two genotypes of hot chilli pepper. The experiment was arranged in split-split plot with randomized block design, each with 3 replicates. The main plot was two pepper genotipes of Laris and Tegar, the sub plot was two AMF i.e without AMF and inoculation Mycofer AMF, the sub-sub plot was four dosages of phosphorus fertilizer, they are 0, 100, 125, and 150 kg P2O5 ha-1. Results showed that (1) genotype and AMF signifi cantly affected plant height; (2) genotypes interacted with AMF in affecting fruit and seed production; (3) interaction among genotip, AMF and phosporus fertilizer affected N, P, K content of seed, and N, P, K absorption of seed. For Laris, N absorpstion increased by 57,70%, P absorpstion increased by 155%, K absorpstion increased by 44.27%, whereas of Tegar genotype the N absorpstion increased by 61.50%, P absorpstion increased by 69.30%, K absorpstion increased by 60.61%. The germination rate and seedling growth rate of the two genotype are only affected by the application of P fertilizer. The index vigor of Laris and Tegar was only affected by both AMF and P fertilizer application. Keywords: AMF, fertilizer, Mycofer, seed quality
Fertilizer Recommendation: Correlation and Calibration Study of Soil P Test for Yard Long Bean (Vigna unguilata L.) on Ultisols in Nanggung-Bogor Susila, Anas Dinurrohman
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): 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 (431.351 KB) | DOI: 10.24831/jai.v38i3.14968

Abstract

Yard long bean (Vigna unguilata L.) 777 was grown in Ultisols, which typically have low pH and high P-fixation, to determine the best correlation of soil extraction methods for soil P with yields, and to develop soil P response categories. The research was conducted at SANREM base camp in Hambaro Village, Nanggung, Bogor, Indonesia from April to August 2008. Treatments were arranged in a Split Plot Design with three replications. The main plots were treatments with soil P status of 0X, ¼X, ½X, ¾X and X, where is X = 1,590.5 kg SP-36 ha-1 (36% P2 O5 ) applied once a month before planting. The subplots were P application rate of 0, 75, 150, 225 and 300 kg P2 O5 ha-1. Yard long beans were planted in double rows per bed, 60 cm between rows and 25 cm within rows, 2 seeds per hole, with plot size of 1.5 m x 5 m. Coefficient correlation (r) of extraction reagents Olsen, Bray-1, HCl 25%, and Mechlich-1 were 0.772, 0.765, 0.755, and 0.732, respectively. Based on Olsen soil testing methods, soil response categories of very low, low, medium, and high were (ppm P2 O5 ) ≤ 18.40, 18.40 < P < 117.27, 117.27 < P < 267.04, and ≥ 267.04 extracted-P, respectively. Based on Bray-1 soil testing methods, soil response categories for low, medium, and high were ≤ 87.81, 87.81 < P < 233.78, and ≥ 233.78 extracted-P (ppm P2 O5 ), respectively. Fertilizer recommendation based on the Olsen soil test for low response category was 185.75 kg P2 O5 ha-1, and for the medium soil category was 175.97 kg P2 O5 ha-1. The Bray-1 soil test for the low response category was 184.31 kg P2 O5 ha-1 , and for the medium soil category was 161.39 kg P2 O5 ha-1 . Keywords: calibration, fertilizer recommendation, phosphorus, yard long bean
Evaluation of Fruit Characters, Xanthones Content, and Antioxidant Properties of Various Qualities of Mangosteens (Garcinia mangostana L.) Kurniawati, Ani
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): 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 (310.699 KB) | DOI: 10.24831/jai.v38i3.14969

Abstract

Xanthone in mangosteen fruit hull has antioxidant activities. The objective of this experiment was to determine xanthones content, physical and chemical characters, and antioxidant potentials of several groups of mangosteens qualities. The experiment was carried out from January 2008 to August 2008. The research used a randomized complete block design with four replications. The treatments were four physical fruit conditions: large size mangosteens (≥ 100 g), small size mangosteens (min. 50 g), yellow sap dotted fruits, and scabbed fruit. The parameters being observed were physical and chemical characteristics, xanthone content, and radical scavenging activity of mangosteen fruit hull extract. The results demonstrated that the physical condition of fruit significantly affected physical fruit hull characters and chemical fruit characters. Characters of fruit hull, thickness, fresh weight, and dry weight, differed among fruit qualities. The physical condition of fruit hull also significantly influenced total soluble solid and vitamin C content, but did not affect total titrable acid and degree of acidity of the fruits. Fruit hulls of all groups of mangosteen qualities had similar antioxidant properties with the IC50 value of 5.57-6.11 ppm. Keywords: benzophenone, scab, vitamin C, yellow sap
The Effects of Pot Sizes and Number of Plants per Pot on the Growth of Amorphophallus muelleri Blume Mine, Yoko
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 38 No. 3 (2010): 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 (243.79 KB) | DOI: 10.24831/jai.v38i3.14973

Abstract

To determine the effects of pot sizes and the number of plants per pot on the growth of Amorphophallus muelleri, seed corms weighing 100-125 g were planted in polyethylene pots. In the first experiment, a corm was planted in pots containing various amounts of growth media: i.e., 0.25, 0.40, 0.50, 1.00, 1.33, 2.00 and 4.00 kg. In the second experiment, different numbers of plant, i.e., 1, 2, 3, 4 and 5, were grown in pots containing 4.00 kg of growth media. When plants were grown in pots containing a small amount of media (1.33 kg pot–1 or less), they produced small daughter corms and entered dormancy earlier than usual. The number of plants per pot had little effect on corm weight if the amount of growth media per plant was 0.80 kg or greater. As a result, corm yield increased with an increase in the number of plants per pot. The period from corm planting to harvest was slightly longer when only one plant was grown in a pot than when 2–5 plants were grown in the same-sized pot. This study suggested that the low productivity of A. muelleri in shallow soil was associated not only with a small amount of soil per plant but also with limited rooting volume. Keywords: available water, competition, dormancy, plant density, soil depth
Respon Klon Karet terhadap Frekuensi Penyiraman di Media Tailing Pasir Pasca Penambangan Timah Inonu, Ismed
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): 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 (147.912 KB) | DOI: 10.24831/jai.v39i2.15412

Abstract

Sand tailings derived from tin post-minings activities have high porosity, low water holding capacity, and low organic matter content. These conditions causes soil water defi cit, especially in dry season. To increase the successful of sand tailings revegetation with rubber tree, it is important to select some rubber tree clones based on their adaptability on the sand tailings conditions, especially drought stress. This research aimed to study the response of several rubber tree clones to the frequency of watering on sand tailings. The experiment was conducted in a plastic house at the experimental station of Agrotechnology Study Program of Bangka Belitung University, Sungailiat for 4 months. The experimental design was a factorial randomized block design with two factors and three replications. The fi rst factor was the frequency of watering (every day, every 3 days, and every 5 days), the second factor was a combination of recommended rootstock clones and recommended latex clones (clone GT 1 + PB 260, GT 1 + IRR 118, and PB 260 + BPM 24). The results showed that watering every 5 days caused drought stress resulted in impaired growth of rubber in sand tailings media derived from tin post-mining. The combination of rootstocks and scions PB 260 + BPM 24 and PB 260 + IRR118 were categorized as moderately tolerant clones while GT 1 + PB 260 was categorized as sensitive clones to drought stress in the sand tailings media.Keywords: drought tolerance, watering frequency, rubber tree clones, sand tailings
Application of 1-MCP to Intact Tomatoes Differing in Maturity Delays Quality Changes in the Stored Slices Pangaribuan, Darwin Habinsaran
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): 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 (238.07 KB) | DOI: 10.24831/jai.v39i2.15415

Abstract

A study was carried out to determine the effect of 1-MCP applied to intact tomatoes differing in maturity stage onquality of stored tomato slices. 1-MCP (1 μL L-1, 20 °C, 12 h) was applied directly to intact tomatoes from ‘turning’, ‘pink’,and ‘light-red’ stages of maturity. After slicing, slices were stored for up to 10 days at 5 ºC. 1-MCP maintained slice qualityduring storage following treatment of intact ‘turning’ and ‘pink’ maturity fruit as indicated by higher titratable acidity, higherascorbic acid concentration, and lower lycopene content.1-MCP treatment did not signifi cantly affect soluble solids andelectrolyte leakage. Slices from ‘light-red’ maturity stage fruit did not respond to 1-MCP. The results show that applicationof 1-MCP to intact tomatoes was effective in maintaining tomato slice quality if 1-MCP is applied to fruit at early (‘turning’and ‘pink’) stages of maturity.Keywords: 1-methylcyclopropene, soluble solids, acidity, ascorbic acid, lycopene, electrolyte leakage
Perbanyakan Tunas Mikro pada Beberapa Umur Simpan Umbi dan Pembentukan Umbi Mikro Bawang Merah pada Dua Suhu Ruang Kultur Dinarti, Diny
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): 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 (196.039 KB) | DOI: 10.24831/jai.v39i2.15416

Abstract

Shallot bulb generally stored for several month before planted in the fi eld. Since explant age is one of important factors in tissue culture development, storage period of shallot bulb might alter the explant growth in vitro. Shoots of shallot formed in the in vitro culture should form bulbs before can be use as seedling, and temperature may affect micro bulb induction. Two experiments had been conducted to evaluate 1) the effect of storage period in the fi eld on the growth of shallot explant in vitro and 2) the effect of culture room temperature in microbulbs induction of shallot. In the fi rst experiment, shallot bulb had been stored for 1, 2, 3 and 4 months before used as explants. Storage period signifi cantly infl uenced the explant growth in vitro. Bulb with 2 months storage gave the best performance on number of micro shoot, number of leaves and roots, and less of vitrifi cation. Micro shoots on three weeks after planting (WAP) was feasible to use as propagule for shallot micro bulb induction. In the second experiment, shoots from propagation medium was transplanted to bulb induction medium and grown in growth chamber with different temperatures (day/night) 20/17 oC and 30/27 oC, respectively. Micro bulb induction was infl uenced by temperature. Lower temperature showed good results for number of leaves, length of leaves, number of roots, and length of roots. However, temperature of 30/27 oC gave the best result on number of micro bulb, diameter of bulb and bulb width:bulb disk diameter ratio. Keywords: Allium, explants age, micro bulb, temperature, 2ip
Evaluasi Daya Gabung dan Heterosis Lima Galur Jagung Manis (Zea mays var. saccharata) Hasil Persilangan Dialel Iriany, R. Neni
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): 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 (165.71 KB) | DOI: 10.24831/jai.v39i2.15417

Abstract

The objective of this research was to estimate general combining ability (GCA), specifi c combining ability (SCA),and heterosis of fi ve sweet corn inbreds in order to be selected to develop hybrid varieties. Five inbred lines as parent wereMr12/SC/BC4-6-1B-1, Mr14/SC/BC4-6-1B-1, Mr4/SC/BC4-2-1B-1, Mr11/SC/BC4-2-1B-1, and Mr12/SC/BC3-3-1B-1. Theexperiment was conducted from April to June 2010 using a Randomized Complete Block Design with two replications atIndonesian Cereal Research Institute (ICERI) experimental station, Maros, South Sulawesi. Analyses of GCA and SCA werebased on the Griffi ng’s fixed model of Diallel Design Method I. Heterosis values were predicted based on the average valuesof their parents whereas heterobeltiosis were predicted based on the average values of the highest parents. Cross B x D(Mr14/SC/BC4-6-1B-1 x Mr11/SC/BC4-2-1B-1) had the highest SCA for yield 990.67. Cross A x B (Mr12/SC/BC4-6-1B-1 xMr14/SC/BC4-6-1B-1) had the highest SCA for ear diameter 0.36. Cross A x D (Mr12/SC/BC4-6-1B-1 x Mr11/SC/BC4-2-1B-1) had the highest heterosis and heterobeltiosis for yield, while Cross A x D (Mr12/SC/BC4-6-1B-1 x Mr11/SC/BC4-2-1B-1)had the highest heterosis and heterobeltiosis for ear length. Cross A x B (Mr12/SC/BC4-6-1B-1 x Mr14/SC/BC4-6-1B-1) andE x A (Mr12/SC/BC3-3-1B-1 xMr12/SC/BC4-6-1B-1) had the highest heterosis and heterobeltiosis for ear diameter.Keywords: combining ability, diallel crossing, heterosis, sweet corn
Radiosensitivitas Pisang cv. Ampyang dan Potensi Penggunaan Iradiasi Gamma untuk Induksi Varian Indrayanti, Reni
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): 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 (266.834 KB) | DOI: 10.24831/jai.v39i2.15419

Abstract

Banana is commonly propagated vegetatively by suckers since most of edible banana are triploid, male sterile andparthenocarpic, use of conventional breeding for banana improvement is diffi cult. Mutation induction and in vitro techniqueare alternative tools for banana improvement. The objectives of this research were (1) to determine radiosensitivity of bananacv. Ampyang against gamma irradiation, and (2) to evaluate performance of plantlets regenerated from gamma irradiatedexplants of banana cv. Ampyang. Explants of in vitro grown shoots were exposed to gamma irradiation at 0, 20, 25, 30, 35,40, 45, and 50 Gy to determine their radiosensitivity. Growth and development of regenerated plantlets were recorded after10 months of proliferation and regeneration periods. The CurveExpert ver. 1.4 analysis results indicated that lethal doses ofirradiation reducing 20% to 50% of shoot growth (LD20-50) were 51.07 - 64.54 Gy. All regenerated plantlets from irradiatedexplants produced less numbers of roots, and some of regenerated plantlets, showed signifi cantly less plantlet fresh weightand height than the control one. Plantlets regenerated from explants irradiated with 25, 40, 50 Gy have longer leaves than thecontrol. The regenerated plantlets from gamma irradiation treatments were successfully transferred into soil and they wouldbe used to evaluate existence of variants among regenerated banana plantlets.Keywords: induced mutation, gamma irradiation, lethal dose (LD20-50)
Protein and Anthocyanin Production of Waterleaf Shoots (Talinum triangulare (Jacq.) Willd) at Different Levels of Nitrogen+Potassium and Harvest Intervals Susanti, Hilda
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 39 No. 2 (2011): 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 (147.206 KB) | DOI: 10.24831/jai.v39i2.15420

Abstract

The experiment was conducted at IPB Experimental Station, Leuwikopo, Dramaga, Bogor, from November 2009 untilFebruary 2010 to study the effect of different nitrogen+potassium rates and harvest intervals on protein and anthocyaninproduction of waterleaf shoot (Talinum triangulare (Jacq.) Willd). A randomized complete block design was used with threereplications of two factors, which were four N+K dosages (50 kg urea + 50 kg ha-1 KCl, 50 kg urea + 100 kg ha-1 KCl, 100 kgurea + 50 kg ha-1 KCl, 100 kg urea + 100 kg ha-1 KCl) and three harvest intervals (30, 15, and 10 days). The results showedthat interaction of 100 kg urea + 100 kg ha-1 KCl and 15-day harvest interval produced the highest content (8.29 mg g-1 freshweight) and production (4.72 g plant-1) of protein. The interaction of N+K dosages and harvest intervals were not signifi cantin affecting the anthocyanin content. The highest production of anthocyanin was produced by single treatment of 100 kg urea+ 100 kg ha-1 KCl (152.23 μmol plant-1) and 10 days harvest interval (165.47 μmol plant-1), respectively. Leaf protein levelsnegatively correlated with anthocyanin content.Keywords: anthocyanin, fertilizer, harvest interval, protein, Talinum triangulare

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