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Agrotrop : Journal on Agriculture Science
Published by Universitas Udayana
ISSN : 2088155X     EISSN : 26544008     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal AGROTROP
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue "Vol 1 No 1 (2011)" : 12 Documents clear
PENDUGAAN EROSI DAN PERENCANAAN KONSERVASI TANAH DAN AIR PADA DAERAH ALIRAN SUNGAI OTAN KABUPATEN TABANAN TATIEK KUSMAWATI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Erosion Prediction and Planning of Soil Water Conservation at Otan Watershed, Tabanan Regency The aims of this research was to predict the erosion and planning of soil and water conservation when the erosion is more than tolerable erosion. The USLE (Universal Soil Loss Equation) was used to predict erosion and planning of soil and water conservation. The result showed that the erosion level in this area was varied from very slight to very severe. The lowest erosion was on land unit 11 and 12 which were on the forest land. Slight erosion occurred on land units 2, 3, 4, 5, 10, 13, 18, 20, 22, 23, 25, 26, 28, 31, 32, 33, 34, 36, 37, 40, 41, and 43 on the use of forest land, irrigated fields, and mix crop land. Moderate erosion can be found at cocoa plantations, coffee plantations, scrub and dry land (land unit 1, 8, 16, 30, 38, dan 45). Severe and very severe erosion occurs at mixed crop land, coffee plantations, mixed crop and dry land (land unit 35 and 6, 7, 9, 14, 15, 17, 19, 21, 24, 27, 29, 39, 42, and 44 ). The planning of soil and water conservation was focused on the very severe erosion by doing for some plant growing storied canopies, very high density, and constructed terrace for land unit of 6, 7, 14, 15 ,19, 21, 27, and, 29. While at land unit, 9, 17, 24, and 35 was purposed mixed estate crop with high density, it was combinated with mulch of 1 ton/ha and in land unit 39 were for traditional terrace with gogo rice and corn plant in rotation plantation.
PENAMPILAN SIFAT-SIFAT AGRONOMIS BEBERAPA VARIETAS KRISAN DI KABUPATEN BANDUNG SUNJAYA PUTRA; SRI OLYNDRIANA DEWI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Agronomic Performance of Chrysanthemum Varieties in Bandung. The objective of this experiment was to determine the agronomic performance of chrysanthemum varieties in Bandung Regency. The experiment was conducted at District Pasir Jambu Bandung regency of West Java Province on July until October 2010. The materials used are 10 varieties of chrysanthemum: Puspita Nusantara, Padma Buana, Puspita Asri, Purbasari, Swarna Kencana, Cut Nyak Dien, Sakuntala, Tirta Ayuni, Candra Kirana, and Mustika Kaniya. Fertilizers used were fermented manure 30 t / ha, urea 200 kg / ha, SP36 300 kg / ha, and KCl 250 kg / ha, foliar fertilizer Gramoxone 1 cc / l, and pesticides. Randomized block design with ten treatment ofchrysanthemum and four replications. The results of experience conclused that Swarna Kencana, Sakuntala and Padma Buana has a plant height 100.5 cm, 97.6 cm, and 94.76 cm higher than the other varieties (grade A) and the shortest are Candra Kirana of 51.95 cm (grade C). The number of stem segments occurred of Tirta Ayuni varieties in 32.5 and varieties Purbasari 26.2 lowest. Mustika Kaniya has the largest trunk diameter (0.74 cm) and smallest diameter occur on Padma Buana (0.45 cm), Purbasari (0.45 cm) and Puspita Asri (0.46 cm). Tirta Ayuni have leaf length (13.74 cm) and petiole length reached (4.05 cm). The diameter of the largest flower is Sakuntala and the smallest is Candra Kirana. The number of flower Candra Kirana was the smallest (7.7 buds) and most of flowers Purbasari namely 27.30 buds.
SIFAT FISIK TANAH DAN HASIL TANAMAN AKIBAT PEMBERIAN PUPUK ORGANIK PADA SISTEM TUMPANGSARI JAGUNG-KACANG TANAH PADA INCEPTISOL NI MADE TRIGUNASIH; TATIEK KUSMAWATI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Soil Physical   Properties and Plant Yield on Organic Fertilizing and Intercropping System of Corn-Peanut on  Inceptisol The experiment was conducted at Pengotan Village, Bangli Regency. The purpose of this experiment was to study  physical   properties of soil organic fertilizer and the intercropping system of corn and peanut on  Inceptisol.The experiment  was arranged in nested  Randomized Block Designed  (RBD)  with three replications. The treatments was consisted of two factors i.e. dosages of organic fertilizers (P) and cropping systems (S). The organic fertilizer treatment consisted of four levels i.e. without fertilizer  (P0),  5  tons  ha   (P1),    10  tons  ha -1 -1 (P2),  and  15  tons  ha (P3).  The treatment of cropping system  consists  of three types i.e. multiplecropping corn and peanut (S1), corn monoculture (S2) and peanut monoculture (S3). The results showed that cropping systems were not significantly influenced to all parameters of soil physical properties, but significantly influenced to the yield of corn and peanuts. The NRR Test indicated that the corn was more profitable on monoculture, but yield of peanut was higher on multiplecropping. Treatment  dosages of  15  tons  ha -1 -1   (P3)  in the  peanut monoculture  provide  the highest fresh  pod weight of 3.13 tons ha . -1
PENDEKATAN MATEMATIS DALAM PENENTUAN WAKTU EFEKTIF PERTUMBUHAN TANAMAN CABAI MERAH N.W. SURYAWARDHANI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Mathematical Model in Determining Effective Time for Growth Rate of Red Chili The growth rate showed a sigmoidal shaped pattern with initially slow growth rate and speeding up till a certain period before slowing down to approach a limit. So it is very important to define the plant growth model. The aim of the study is to estimate the effective time of plant growth by looking at the mathematical model. The statistical analysis showed that the growth ofCapsium annum Cult. Hot Beauty’s can be fit well by Janoscheck model and the effective growth time occurs as the plant is in the interval of 14 to 21 days after transplanting.
THE ROLE OF IRRIGATION MANAGEMENT IN INCREASING RICE PRODUCTION IN SOUTH KOREA I GUSTI NGURAH SANTOSA; CHANG JAEWOO
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Increasing of rice production is one of a highlight program in South Korea. In order to support this, enough water supply for paddy field is one of determined main factors to maintain good plant growth and high yield. Water from the rainfall is usually not enough for paddy field, so it must be supplied from irrigation system. The water source for irrigation can be derived from surface water and or ground water which is usually located in long distance, consequently it needs irrigation facilities to deliver water until reach paddy field area. Therefore government, and, or farmer need to manage irrigation to fulfill paddy field water requirement and they have been doing it. By working hard and holding strong commitment, South Korea has been reaching rice self sufficiency average 98,9% since 1970s for 38 years period. Average rice yield was 5.20 ton per ha in 2008 and this indicates as the highest level of rice yield in the world as well. Based on this reality, it needs to be studied the role of irrigation management in increasing rice production in South Korea. It was found that irrigation management in South Korea has very important role and it has significant effect in increasing rice production. This reality was supported by increasing of safety paddy field area by year. The water potential developed and to be developed is higher than water use. Government provided K Water (Korea Water Resources Cooperation) to handle everything in relation to water problem.
POTENSITRICHODERMA SP. DANGLIOCLADIUM SP. SEBAGAI MIKROBA ANTAGONIS TERHADAPFUSARIUM OXYSPORUM F.SP.CUBENSE I MADE SUDARMA
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Potency of Trichoderma sp. and Gliocladium sp. as microbial antagonist on Fusarium oxysporum f.sp. cubense A total of 115 different fungus isolate were recovered from banana crop habitats with and without Fusarium wilt disease symptom. These were than assessed for their antagonist ability againstFusarium oxysporum f.sp.cubense (Foc)in vitro.The soil samples were collected from three regencies in Bali, i.e. Karangasem, Klungkung and Jembrana which are the main banana growing areas in Bali. Soil sampling was done in two sites in each regency representing the banana habitat with and without Fusarium wilt symptom, by collecting 100 grams of soil surrounding the banana plant at the depth of 20 cm. The isolate was macroscopically identified to know the color of colony and the growth rate, and microscopically to observe the shape of hypae, the shape of spore, and sporangiospore. The research was done on August until December 2009. Results indicated that one isolates ofGliocladium sp. and 22 isolates of Trichoderma sp. active against Foc. Trichoderma sp. was able to inhibit the Foc mycelium growth were 78.89 ± 1.11- 95.83 ± 7.22 % and Gliocladium sp. inhibited until 95.83 ± 7.22%. After tested with the Foc isolated from four banana cultivars in Bali (Saba, Ketip, Susu and Raja), all of the isolates was able to inhibit the Focin vitro.
KERAGAMAN PARASITOID YANG BERASOSIASI DENGAN LIRIOMYZA HUIDOBRENSIS(BLANCHARD)DANLIRIOMYZASATIVAE (BLANCHARD) (DIPTERA: AGROMYZIDAE) PADA TANAMAN KACANG-KACANGAN A.A.A. AGUNG SRI SUNARI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Diversity of Parasitoid Associated to Liriomyza huidobrensis (Blanchard) and Liriomyza sativae (Blanchard) (Diptera: Agromyzidae) on Nuts Plant. The research was aimed to determined diversity of associated parasitoids withL.huidobrensis (Blanchard) andL. sativae (Blanchar) on the nuts plant in the field. The results showed that there are 8 types of parasitoids, namelyHemiptera varicornis Girault (Hymenoptera: Eulopidae).Asecodes deluchii Boucek (Hymenoptera: Eulopidae), Neochrysocaris okazaki (Kamijo) (Hymenoptera: Eulopidae), Opius spp. (Hymenoptera: Braconidae), Pnigalio sp. (Hymenoptera; Eulopidae). Clasteroceusnrsp (Hymenoptera: Eulopidae) andSphegigaster sp. (Hymenoptera: Pteromalidae). H. varicornis, A. deluchii andOpiusspp. has a different distribution spesialisation on plants hosts and altitude. H. varicornis spread evenly across the height and location of host plants. A. deluchii dominant in the lowlands and in the plains of being, andOpius spp. important in the highlands.
KARAKTERISTIK TANAH ANDISOL PADA LAHAN KERING DI DESA BATUNGSEL, KECAMATAN PUPUAN, KABUPATEN TABANAN UNTUK BUDIDAYA KOPI DAN SALAK IDA AYU SUTYADNYANI; I MADE MEGA
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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The Characteristics of Andisol on Dryland at Batungsel Village, Pupuan District, Tabanan Regency for Growing Coffe and Salacca The purpose of the research was to know the characteristics of Andisol on dryland at Batungsel village, Pupuan District, Tabanan Regency for growing coffea and salacca plant. Soil survey methods and laboratory analysis were used in this research. The parameters of soil characteristics were observed i.e. soil morphology in the fields, physical and chemical, and mineralogical properties. Soil classification was done based on Soil Taxonomy system by using Keys to Soil Taxonomy (2003). Soil characteristics were: soil colour was dark bown, solum depth was deep (>100 cm),CEC was high, base saturation was high, and had a good soil fertility.Based on Soil Taxonomy system, the soil families were Typic Hapludands, ashy, isohyperthermic. The land suitability was suitable enough for coffea and salacca.
PENINGKATAN PRODUKSI DAN MUTU BUAH ANGGUR DENGAN PEMBERIAN IRIGASI TETES DAN PUPUK MINERAL PLUS PADA LAHAN KERING KECAMATAN GEROKGAK, BULELENG I NYOMAN MERIT; IWAYAN NARKA; IDA BAGUS PUTU BHAYUNAGIRI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Increasing the Production and Quality of Grape Yield with Drip Irrigation and Mineral Plus Fertilizer. The aim of this research was to find out the optimum of irrigation intervals and mineral plus fertilizer application in order to increase the production and quality of grape yield. The research was set up for two years program. In the first year, the observation was focused on vegetative growth while yield production was observed in the second year. Three intervals of irrigation viz 2, 4 and 6 days and mineral plus fertilizer dose (M , M 0 and M ) was tested in nested randomized block design with three replications. Parameter of vegetative growth such as plant height, stem diameter and number of branch was measured regularly. Supporting parameters such as soil moisture content, soil water potential, plant water status as indicated by relative water content (RWC) was also measured. In the second year, the production and quality of yield such as number of bunch per plant, number of fruit per bunch and sugar content of fruit were measured. The results showed that mineral plus fertilizer gave a significant effect on grape production, both in first and second harvest. Total yield production of first and second harvest of treatment M0, M1 and M2 was 23.63 kg 27.95 kg and 30.81 kg, respectively. The yield was increased of 18.28 % and 30.38 % of M1 and M2 compare to M0. Interval water supply, has a significant effect on grape yield both in first and second harvest. Total yield production of I1, I2 and I3 was 33.04 kg, 28.18 kg and 21.17 kg, respectively. This was decreased of about 14.71% and 35.93% of I2 and I3 compare to I1. Yield quality was increased as mineral fertilizer increased. Sugar content, volume of seed and respondent that mentioned the yield was sweet, significantly increased as mineral plus fertilizer increased
KARAKTERISASICYMBIDIUM MOSAIC VIRUS (CYMMV) PADA TANAMAN ANGGREK KHAMDAN KHALIMI; KETUT SIADI
Agrotrop : Journal on Agriculture Science Vol 1 No 1 (2011)
Publisher : Fakultas Pertanian Universitas Udayana

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Characterization ofCymbidium mosaic virus (CymMV) on Orchid Plant Orchids are affected by more virus disease problems than most crops, reducing their commercial values considerably. Orchid viruses are widespread in cultivated orchids, withCymbidium mosaic potexvirus (CymMV) being the most prevalent. CymMV high incidence in cultivated orchids has been attributed to the stability and ease of transmission of this virus through cultural practices. CymMV induces floral and foliar necrosis. The virus also reduce plant vigor and lower flower quality, which affect their economic value. The objective of the research is to characterize the virus causing mosaic or chlorotic and necrotic on orchids in West Java. A reverse transcription-polymerase chain reaction (RT- PCR) assays using oligonucleotide primers specific to CymMV were also successfully amplified the regions of the coat protein (CP) gene of the virus. Analysis by using sodium dodecyl sulphate- polyacrylamide gel electrophoresis (SDS-PAGE) revealed that the virus have a major structural protein with an estimated molecular weight of 28 kDa. Aligments of partial nucleotide sequences of the CP gene displayed 86 to 92% homology to CymMV isolates from other countries.

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