Agrotrop Journal on Agriculture Science最新文献

{"title":"Kelimpahan Populasi dan Tingkat Parasitisasi Parasitoid Indigenus terhadap Hama Invasif Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) pada Tanaman Asteraceae di Bali","authors":"I. W. Yasa, I. W. Supartha, I. Susila","doi":"10.24843/ajoas.2020.v10.i01.p07","DOIUrl":"https://doi.org/10.24843/ajoas.2020.v10.i01.p07","url":null,"abstract":"Population Abundance and Parasitization Level of Indigenous Parasites to Invasive Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) on Asteraceae Plants in Bali. This study was aimed to determine the population abundance and parasitization level of indigenous parasitoid associated with Liriomyza trifolii (Burgess) in Asteraceae plants in Bali. The study was conducted from January to March 2019 by survey method on the type of parasitoid, abundance and parasitisation level  in  Asteraceae  plants  which  included  to  Chrysanthemum,  Gerbera  jamesonii  and Helianthus annuus, which are spread in several regencies in Bali such as Buleleng (1200 m asl), Bangli (900-1000 m asl) and Denpasar (40 m asl). Sampling was done purposively on the leaves of plants attacked by Liriomyza sp. and then maintained at the Laboratory until the parasitoid adults appeared. Afterward, morphologically was identified the type of parasitoid that appears. The results showed that there were three types of indigenous parasitoid associated with L. trifolii namely Hemiptarsenus varicornis, Neochrysocharis okazakii, and Opiusdissitus. The most dominant parasitoid of the three types of H. varicornis parasitoid with an abundance of 78.57% and parasitization rate of 53.23% was found in Chrysanthemum plants.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"118 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86200649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Respon Pemupukan Terhadap Hasil dan Kualitas Hasil Salak Gula Pasir (Salacca zalacca cv. Gula Pasir) di Luar Musim Serta Kandungan Air Dan Klorofil Daun","authors":"N. Dewi, I. N. Rai, I. Wiraatmaja","doi":"10.24843/ajoas.2020.v10.i01.p10","DOIUrl":"https://doi.org/10.24843/ajoas.2020.v10.i01.p10","url":null,"abstract":"Fertilization Response to Off-Season Production and Fruit Quality of Salak Gula Pasir (Salacca Zalacca cv. Gula Pasir) and water and Chlorophyll Content of Leaves. Naturally salak Gula Pasir (Salacca zalacca cv. Gula Pasir) flowers every three months a year, but only one to two seasons of the flowers can develop into fruit. Failure of flowers develop into fruit, usually call fruit-set failure, causes the fruits be available seasonally in a short time period, only 2-3 months a year, i.e. during the harvest time (on-season period) from December to February. This research aimed to know response of fertilization to off-season production and fruits quality of salak Gula Pasir and its ralatinship to water and chlorophyll content of leaves. The study used a randomized block design with the treatment was fertilization, consists of 14 levels (fertilized according farmers’ way with leaf midrib only/control, fertilized with compost, mycorrhizal biofertilizer, inorganic NPK, combination of farmers' way and compost, combination of farmers’ way and mycorrhizal biofertilizer,  combination of farmers' way and inorganic NPK, combination of compost and mycorrhizal biofertilizer,  combination of compost and inorganic NPK,  combination of mycorrhizal and inorganic NPK,  combination of farmers’ way, compost, and mycorrhizal biofertilizer,  combination of farmers’ way, compost, inorganic NPK,  combination of farmers’ way, mycorrhizal biofertilizer and inorganic NPK, and  combination of farmers’ way, compost, mycorrhizal biofertilizer, and inorganic NPK). Each treatment was repeated 3 times. The study was carried out in the off season period from April to Nopember 2018 at the production center of salak Gula Pasir plantation i.e. at Sibetan Village, Bebandem District, Karangasem Regency. The results showed that the highest fruit weight per tree at the off-season was obtained on combination of fertilization of farmers' way and mycorrhizal biofertilizer  (of 2536.67 g) and the lowest was on  control/fertilized according farmers’ way  (1,220.00 g). Fertilization with compost, mycorrhizal biofertilizer, and inorganic NPK singly, or by combining it, increases the quality of off-season fruit of salak Gula Pasir, reflected by the increase of weight per fruit, fruit diameter and fruit sweetness compared to control. The lower of yield per tree and quality of fruit on control compared to other fertilization treatments was relate to low relative water content and chlorophyll content of leaves.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86435715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Frekuensi Pengolahan Tanah dan Pupuk Kompos terhadap Sifat Fisik Tanah dan Hasil Jagung","authors":"I. P. Dharma, I. N. Puja","doi":"10.24843/ajoas.2019.v09.i02.p06","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p06","url":null,"abstract":"The Effect of Soil Tillages Frequency and Compost Fertilizer on Soil Physical Properties and Corn Yields. The aims of this research is to determine of effect soil tillage frequency and compost fertilizer on soil physical properties and corn yields. The method was used a Randomized Block Design (RBD), factorial consisting of two factors, namely: Soil Tillages Frequency (T) consists of 3 levels, namely: T0 = no tillage; T1 = if one time and T2 = if twice. Compost Fertilizer (K) consists of 3 levels, namely: K0 = Without compost, K1 = 5 tons compost/ha and B2 = 10 tons compost/ha. Combination treatment into 9 treatments, namely T0K0 , T0K1, T0K2, T1K0, T1K1, T1K2, T2K0, T2K1, T2K2. and each treatment was repeated 3 times, so there were 27 research plots.The results showed that the soil tillage frequency and compost fertilizer had no significant effect on the soil physical properties and corn yields. Twice soil tillage frequency resulted bulk density, porosity, soil moisture content and dry corn yields respectively 1.01 g/cm3, 60.98%, 37.31% and 0.83 kg/m2, and not significant different compared with no tillage which is 1.03 g/cm3, 60.43%, 36.57% and 0.81 kg/m2. Addition of 10 tons compost/ha resulted bulk density, porosity, soil moisture content and dry corn yield respectively 0.99 g/cm3, 61.75%, 38.21% and 0.86 kg/m2, and not significant different compared with without compost fertilizer which is 1.06 g/cm3, 59.40%, 36.44% and 0.80 kg/m2.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"154"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46301070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genus Alga pada Lahan Sawah Organik yang Ditanami Padi Lokal dan Inhibrida di Subak Jatiluwih, Tabanan","authors":"Sawidya Fitriyani, I. W. D. Atmaja, N. N. Soniari","doi":"10.24843/ajoas.2019.v09.i02.p02","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p02","url":null,"abstract":"Algae Genus in Organic Rice Fields Planted with Local and Inhibrida Rice in Subak Jatiluwih, Tabanan. The abundance of microalgae in rice fields, especially microalgae from Cyanophyta division that are capable of fixing nitrogen, is very important helping maintain soil fertility. The aim of this study was to find out the genus of algae in organic rice fields of Subak Jatiluwih, Tabanan. The research was conducted from September 2018 to April 2019. Sampling was done in Subak Jatiluwih. Algae breeding were carried out at Biology and Physics Laboratory, Faculty of Agriculture, Udayana University. This research method uses descriptive quantitative. The implementation of the research included the determination of location, soil and water sampling, identification of algae, and analysis of algae genera. Enrichment algae was carried out using the MPN method, results of the analysis of algae genus were found in 37 genera from 3 divisions i.e Chlorophyta, Cyanophyta and Chrysophyta. Descriptive quantitative method Most Probable Number (MPN) calculation conclude that there are not much different from the Local and Inhibrida rice fields. The maximum population algae of local rice fields is 1.100 cell g-1 and Inhibrida rice fields is >1.100 cell g-1 of land. The minimum population is 3,6 cell g-1 of land in local rice fields, and 9,2 cell g-1 of land in Inhibrida rice fields.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"112"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46748081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asosiasi Lalat Buah (Bactrocera spp.) (Diptera : Tephritidae) dan Parasitoidnya pada Tanaman Jambu Biji Kristal (Psidium guajava L.) yang Dibudidayakan di Bali","authors":"I. Adnyana, N. N. Darmiati, Dwi Widaningsih","doi":"10.24843/ajoas.2019.v09.i02.p01","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p01","url":null,"abstract":"Association of Fruit Flies (Bactrocera spp.) (Diptera: Tephritidae) and Their Parasitoid on Guava (Psidium guajava L.) Cultivated in Bali. The study on the association of fruit flies (Bactrocera spp.) (Diptera: Tephritidae) and their parasitoid on guava (Psidium guajava L.) cultivated in Bali was conduted in order to know the abundance, attacks percentage and the species of parasitoid associated on guava, cultivated in Bali. The sampling was done intentionally by taking attacked fruit in Musi Village, Buleleng Regency; Pelaga Village, Badung Regency; and Tiga Village, Bangli Regency. The results showed that 3 species of fruit flies were found, namely B. carambolae, B. papayae and B. albistrigata. The percentage and number of adult insect emergence in Musi Village were B. papayae (50.87% ; 2772 imago), B. carambolae (35.18% ; 1803 imago) and B. albistrigata (13.94% ; 741 imago). In Pelaga Village B. carambolae (61.31% ; 2864 imago) dominates and B. papayae only 38.69% and 1801 imago. B. carambolae is also found dominant in Tiga Village (59.08% ; 2303 imago) and B. papayae only 40.92% and 1603 imago. Percentage of damage to guava is 24.27% on average. There are three species of parasitoids found that are associated with fruit flies on guava in Bali, namely Fopius arisanus, Diachasmimorpha sp. and Opius sp. The average parasitic rate is 6.76%. The highest parasitic rate is in Musi Village, Buleleng while the lowest is in Tiga Village, Bangli.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"97"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48449487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dinamika Amonium dan Nitrat Lahan Sawah Latosol pada Budidaya Konvensional Padi Lokal dan Hibrida di Subak Jatiluwih","authors":"Gita Yuni Permatasari, A. A. I. Kesumadewi, A. Suwastika","doi":"10.24843/ajoas.2019.v09.i02.p04","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p04","url":null,"abstract":"Ammonium Dynamics and Latosol Wetland Nitrates in Conventional Cultivation of Local and Hybrid Rice in Jatiluwih Subak. Plants absorb nitrogen in the form of ammonium (NH4 ) and nitrate (NO3 ). Each sample was analyzed for its ammonium and nitrate levels using macro Kjeldahl method. The results showed that the concentration of ammonium and nitrate in soil of the two rice fields were similar. The ions contents were as following: nitrate (2,67%) and ammonium (2,67%) in local rice, while those in hybrid rice fields were amounted of 1,48% and 4,59% respectivelly. The concentration of ammonium and nitrate on 21 DAC in soil samples remained low and rose at 28 DAC, then decreased at 56 DAC. It means that the times of fertilizing always done by the farmers were not appropriate.The content of ammonium and nitrate in water phase much lower than that in soils for both types of rice plants. The highest concentration of ammonium in local rice fields was 0,093% at the time of tillage and the lowest 0% on 21 DAC, while the highest nitrate concentrations in local rice water was 0,37% at 70 DAC and the lowest was 0% at of 21 DAC. The highest ammonium concentrations in hybrid rice 0,33% at 14 DAC, and the lowest 0% at 42 HST, while the highest nitrate content 0,47% at 42 DAC and the lowest 0% at the time of tillage. The fertilizing times recommended based on the findings of this reaserch is at 10-15 DAC for both rice types and another subsquent fertilization on 60-65 DAC for local rice and 40-45 DAC in hybrid rice.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"135"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43298422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isolasi dan Identifikasi Endomikoriza pada Perakaran Tanaman Jagung (Zea mays L.) Dataran Sedang serta Perbanyakannya pada Tingkat Kadar Air Tanah Berbeda","authors":"Ngakan Made Adi Wedagama, I. Sukewijaya, N. Kartini, I. N. Rai","doi":"10.24843/ajoas.2019.v09.i02.p03","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p03","url":null,"abstract":"Isolation and Identification of Endomycorrhizal on Corn Root (Zea mays L.) at Medium Plain and its Propagation at Different Soil Water Level. Endomycorrhizal has several benefits that can increase the absorption of water and nutrients, protect plants from root pathogens and toxic elements, play a role in the improvement of soil structure, and increase the solubility of nutrients. The purpose of this research is to find out the types endomycorrhizal contained in the corn roots at medium plains in Gianyar Regency, and the influence of different soil water level to endomycorrhizal ability to reproduce spores. This research was conducted from September 2017 to February 2018. The method of the research includes exploration, isolation, identification, propagation of spores endomycorrhizal, and soil samples analysis. Isolation and identification result found 2 genus of spores endomycorrhizal that was Glomus and Acaulospora, with various spore amount and the level of infection endomycorrhizal was very high with percentage of 83.33-86.67%. Spores propagation test results showed that the highest percentage enhacement of spores endomycorrhizal amount was found in the third soil sampling location in soil water level of 40% field capacity treatment with percentage of 551.85%. The level of endomycorrhizal infections at the roots of all treatment of soil sampling location and soil water level were very high with percentage of 100%.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"125"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43494512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Report of Distribution of Entomopathogenic Fungi Aschersonia sp. Infected Whitefly in Bali","authors":"I. P. Suputra, I. Sudiarta, G. Wirya, I. K. Sumiartha","doi":"10.24843/ajoas.2019.v09.i02.p09","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p09","url":null,"abstract":"Laporan Baru tentang Distribusi Jamur Entomopatogenik Aschersonia sp. yang Menginfeksi Kutu Putih di Bali. Penelitian tentang distribusi jamur entomopatogenik Aschersonia sp. dilakukan untuk mengetahui persebaran Aschersonia yang menginfeksi kutu putih di seluruh Bali. Penelitian tersebut dilakukan di Kabupaten Gianyar, Bangli dan Buleleng pada centra perkebunan jeruk dimulai tahun 2014 sampai tahun 2018. Aschersonia pertama kali ditemukan pada tahun 2014 di Desa Sekaan Kintamani Bangli dan Desa Kerta Payangan Kabupaten Gianyar, dan pada tahun 2018 ditemukan di Desa Gobleg Sukasada Kabupaten Buleleng. Distribusi jamur tersebut ditemukan di dataran tinggi dan tidak ditemukan di dataran rendah. Hal ini sangat terkait dengan keadaan iklim terutama kelembaban dan suhu. Jamur Aschersonia sangat baik tumbuh pada suhu 20°C yang berada pada dataran tinggi. Kata kunci: jamur entomopatogenik, kutu putih, dataran tinggi","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"188"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48686827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peningkatan Produktivitas Tanaman Padi Sawah Melalui Pemupukan Kompos dan NPK","authors":"I. G. Adi, I. N. Puja","doi":"10.24843/ajoas.2019.v09.i02.p08","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p08","url":null,"abstract":"Increased Rice Crop Productivity Through Compost and NPK Fertilization. The aims of this research was to study response of compost and NPK fertilizers to the soil chemical properties and rice yield. The method used was a factorial Randomized Block Design consisting of two factors. The first factor was compost Fertilizer (B) consists of 2 levels, namely: B0 = Without compost fertilizer and B1 = 5 ton compost fertilizer ha-1. The second factors was NPK national recomendation (P) consists of 3 levels, namely: P1 = 50% of NPK recommendation, P2 = 100% of NPK recommendation and P3 = 150% of NPK recommendation. The results showed that the treatment of compost and NPK fertilizers gave no significant effect on tillers number clumb-1 and dry straw weight/m2 , but gave a significant effect on N, P, K and dry grain weight/m2. The combination of 5 tons of compost/ha and 150% of NPK recommendation can produce N-total, P-available level, K-available and dry grain weight per m2 respectively 0.35%, 13.79 ppm, 355, 21 ppm and 0.96 kg and significantly higher than the combination of 50% NPK recommendation and without compost, which were 0.26%, 8.21 ppm, 236.10 ppm and 0.69 kg respectively.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"178"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44264494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peningkatan Produksi Tanaman Bawang Daun (Allium Fistusolum) Melalui Aplikasi Pupuk Organik Cair Rumput Laut (Sargassum sp.) di Kota Wisata Batu","authors":"Kadek Leni, M. Fadil, Achmad Nizar","doi":"10.24843/ajoas.2019.v09.i02.p05","DOIUrl":"https://doi.org/10.24843/ajoas.2019.v09.i02.p05","url":null,"abstract":"The Effect of Providing Seaweed Liquid Organic Fertilizer (Sargassum sp) on The Growth and Production of Leaf Onion (Allium Fistusolum). Market demand for leaf onion has increased from year to year but the growth and production of leaf onion has not increased because the farmers always fertilize using chemical fertilizers. This study aims to determine the effect of seaweed liquid organic fertilizer on the growth and production of leaf onions. The study was conducted on a land area of 30m2 in Tulungrejo Village, Bumiaji, Batu - Malang. The experiment used CRD (Completely Randomized Design) with 5 treatments and 5 replications. The treatment carried out were without giving of seaweed liquid organic fertilizer on the leaves onion plant (P0), giving seaweed liquid organic fertilizer to the leaves onion plant with a concentration of 5 ml / liter (P1), 10 ml / liter (P2), 15 ml / liter (P3), and 20 ml / liter (P4). The parameters observed were plant height growth, growth in number of leaves and weight of harvesting leaf onion. Observation data were analyzed using analysis of variance level 5% and Duncan's advanced test at 5% level. The results showed that the application of seaweed liquid organic fertilizer had a significant effect on the growth of leaf onion plants and the production of onion leaf. On the growth of the number of leaves, the application of seaweed liquid organic fertilizer did not have a significantly effect on the leaf onion plants in the age of 63 days after planting.","PeriodicalId":56241,"journal":{"name":"Agrotrop Journal on Agriculture Science","volume":"9 1","pages":"146"},"PeriodicalIF":0.0,"publicationDate":"2019-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44712802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}