Journal of Agriculture and Natural Resources最新文献

Growth and yield of different oat (Avena sativa) varieties in Lalitpur district of Nepal 尼泊尔拉利特普尔地区不同燕麦品种的生长和产量

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50394

S. Pant, R. Ghimire, Prenil Kc, S. Upreti

{"title":"Growth and yield of different oat (Avena sativa) varieties in Lalitpur district of Nepal","authors":"S. Pant, R. Ghimire, Prenil Kc, S. Upreti","doi":"10.3126/janr.v5i1.50394","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50394","url":null,"abstract":"Oat (Avena sativa) is considered as one of the best fodders to mitigate the present seasonal feed deficit for ruminants in Nepal. The study was undertaken to evaluate eleven oat varieties for fodder and seed yield at the Khumaltar condition from December 2021 to April 2022. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The fodder oat varieties; Ever leaf, Titan, Baler no. 1, Sweet oat, Monida, Qingyin no. 1, Qinghai no. 444, Kona, Swan Pak, Longford, and Netra (as a check variety) were used as the treatments. An experimental unit was a 4 m × 3 m sized plot with the row to row spacing of 0.30 m and continuous sowing within a row. A total of two cuttings were taken for fodder. The observations on growth and yielding characters comprising of plant height, leaf area, number of tillers plant-1, number of leaves/tiller, fodder dry matter, seed and straw yield were recorded. The results showed the fodder dry matter yields ranged from 2.35 to 3.58 t/ha and were not significantly different (p>0.05) among the varieties. The seed and straw yields were obtained statistically different (p<0.05) among the varieties. Netra (2.90 t/ha) and Kona (2.88 t/ha) produced higher seed yields. Similarly, the highest straw yield was produced for the variety Longford (8.73 t/ha).","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41612530","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}

引用次数: 2

Effects of different dose of nitrogen and lime on soil properties and maize (Zea mays L.) on acidic nitisols of Northwestern Ethiopia 不同剂量氮和石灰对埃塞俄比亚西北部酸性硝土土壤性状和玉米的影响

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50758

Birtukan Amare, Eyayu Molla, Y. Selassie, H. Belay, Tesfaye Bayu

{"title":"Effects of different dose of nitrogen and lime on soil properties and maize (Zea mays L.) on acidic nitisols of Northwestern Ethiopia","authors":"Birtukan Amare, Eyayu Molla, Y. Selassie, H. Belay, Tesfaye Bayu","doi":"10.3126/janr.v5i1.50758","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50758","url":null,"abstract":"This study was carried out on the nitisols of Burie district, Ethiopia to examine the effect of integrated use of lime and nitrogen on soil physicochemical properties and maize yield. Two levels of lime (0 and 0.5 t/ha) and five-level of nitrogen (0, 46, 92, 138 and 184 kg N/ ha) were laidout in randomized complete block design with three replications. The results indicated that among before planting, soil bulk density (BD), pH, soil organic carbon (OC), total nitrogen (TN), available P and CEC were 1.42 g/cm3, 5.2 (strongly acidic), 1.32% (very low), 0.12% (low), 8.86 mg /kg (very low), and 19.57 cmolc /kg (medium), respectively. The physicochemical properties except bulk density increased. The lowest soil BD (1.21 g/m3) was from plots treated with 0.5 t/ha lime and 184 kg N/ ha. The maximum soil pH (6.85) was obtained from plots treated with 184 kg N/ ha and 0.5 t/ha lime. The maximum soil CEC (35.38 (cmolc /kg) was obtained from plots treated with 184 kg N/ ha and 0.5 t/ha lime. Level of lime, nitrogen fertilizer, and interaction effects of lime and nitrogen fertilizer (L×N) significantly affected maize yield (p<0.001). Indeed yield of maize has positive correlations with most soil physicochemical properties but negative with BD (r= -0.543). The adjusted yield and net benefits was 6.4 t/ha and 1101.77$. Inherent physicochemical properties of the soil are changed either by sole or combined use of lime and N fertilizer. Soils tilled with 0.5 t/ha lime and 138 kg/ha nitrogen were found in maximum net benefit. Residual long-term effects should be researched. Thus, liming should be given an emphasis on acidic soil amelioration. Moreover, the government may facilitate the supply of lime and nitrogen fertilizer to the farmers.\u0000 ","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49268485","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}

引用次数: 1

Effects of organic manures on yield and yield attributes of coffee (Coffea arabica L.) genotypes 有机肥对咖啡基因型产量及产量性状的影响

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50722

J. Chaudhary, Y. Bhusal, T. Gotame, K. Thapa, D. S. Shrestha, J. Shrestha

{"title":"Effects of organic manures on yield and yield attributes of coffee (Coffea arabica L.) genotypes","authors":"J. Chaudhary, Y. Bhusal, T. Gotame, K. Thapa, D. S. Shrestha, J. Shrestha","doi":"10.3126/janr.v5i1.50722","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50722","url":null,"abstract":"An experiment was carried out to determine the effects of organic sources of fertilizers on yield and yield parameters of five coffee (Coffea arabica) genotypes at Gulmi district in 2015 to 2021. Five different source of organic manures (mustard cake @ 2 kg/plant, poultry manure @ 2.5 kg/plant, vermi compost @ 3 kg/plant, goat manure @ 4 kg/plant and FYM/cattle manure @ 5 kg/plant) was applied on five coffee genotypes (Chhetradip Local, Gulmi Local, Selection-10, Syangja Special and Yellow Cattura). Field experiment was laid out in factorial randomized complete block design with three replications. Irrespective of genotypes, the length of cherry was found maximum (15.3 mm) in mustard cake applied plants which was followed by poultry manure applied plants (15.2 mm). The average cherry length was found longest (15.3 mm) in Yellow Cattura and Syangja Special which was followed by genotype Chhetradip Local (15.1 mm). The highest diameter of cherry (12.7 mm) was obtained with the use of mustard cake followed by poultry manure (12.4 mm). The application of mustard cake produced the highest cherry yield (3.55 kg/plant) followed by poultry manure (3.43 kg/plant). Yellow Cattura produced the highest fresh cherry yield (3.34 kg/ha) followed by Selection-10 (3.07 kg/plant). Results indicate that poultry manure and Yellow Cattura are most effective for higher production of coffee.","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44030663","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}

引用次数: 0

Evaluation of performance and genetic parameters in quality protein maize genotypes 优质蛋白玉米基因型的性能和遗传参数评价

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50514

Aradhana Regmi, Dikshya Niraula, Upasana Shrestha, Suraj Shrestha, B. Kandel

{"title":"Evaluation of performance and genetic parameters in quality protein maize genotypes","authors":"Aradhana Regmi, Dikshya Niraula, Upasana Shrestha, Suraj Shrestha, B. Kandel","doi":"10.3126/janr.v5i1.50514","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50514","url":null,"abstract":"Quality protein maize (QPM) contains opaque-2 mutant genes that increases lysine and tryptophan level which are not normally found in maize. The objective of this study was to evaluate the performance of QPM genotype based on their yield, yield attributing and other relevant characteristics. A varietal trial on QPM was conducted in the research field of Lamahi municipality-3, Dang, Nepal from February to June 2021. This experiment was performed in Randomized Complete Block Design with three replications. Thirteen genotypes of QPM and one standard check (Poshilo Makai-2) were evaluated. Each genotype was assigned an area of 3m × 3m with a net plot area of 452.5m2 per block. Analysis of variance revealed significant data for the most of the genotypes. Four genotypes Rampur-S13FQ-02 Rampur-SO3FQ-02, Rampur-S13FQ010 and Rampur-S13FQ-08 were found superior with a yield of 4.32 t/ha, 3.97 t/ha, 3.89 t/ha, 3.63 t/ha respectively in comparison to the standard check Poshilo makai-2 (2.66 t/ha). Significant and positive correlation were observed for the ear length, ear diameter, number of kernels per ear, number of kernel row per ear, ear weight whereas negative for ear aspect with grain yield was observed. Ear weight without husk had the highest contribution to grain yield. For all observed traits, the coefficient of phenotypic variation (PCV) was found to be higher than that of genotypic coefficient of variation (GCV). The highest GCV, PCV, genetic advance and heritability were observed in ear aspect, thousand grain weight, ear height, plant height respectively. As a result, breeding programs can be further improved by selecting these traits.","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43640999","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}

引用次数: 1

Phenotypic characterization and diversity of Nepalese garlic (Allium sativum L.) landraces 尼泊尔大蒜地方品种的表型特征和多样性

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50834

D. Shrestha, J. Chaudhary, K. Ghimire, J. Shrestha

{"title":"Phenotypic characterization and diversity of Nepalese garlic (Allium sativum L.) landraces","authors":"D. Shrestha, J. Chaudhary, K. Ghimire, J. Shrestha","doi":"10.3126/janr.v5i1.50834","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50834","url":null,"abstract":"A total 37 garlic landraces collection from Nepal Genebank were characterized using phenotypic trait maps or agro morphological markers at National Agriculture Genetic Resources Centre (Genebank), Khumaltar, Lalitpur, Nepal during 2017 using quantitative and qualitative traits. Shannon and Weaver diversity index (H’) analysis revealed significant intra landrace diversity for both quantitative and qualitative traits. Nine principal components contributed 100 % to the cumulative variance and the first three principle components with Eigen value >1 accounted for 69.9 % of the entire variability.The cluster analysis grouped the 37 accessions into five distinct group. The Accession CO4816 from cluster 5 were superior in terms of yield attributing characters such as number of cloves/bulb, weight of cloves and yield but found to be shorter is plant height. Pearson correlation analysis among eight quantitative traits showed highly significant positive correlation between leaf length and leaf width, leaf length and shaft length, leaf length and yield, weight of cloves and yield. The high yield is associated with leaf length, leaf width, weight of cloves and number of cloves. The frequency distribution for disease (Cercospora leafspot and Alternaria porii) occurrence were very low in 78 % of the accessions.","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46602288","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}

引用次数: 0

Nutrient contents in different sources of organic manures used in different farms of Bhaktapur district, Nepal 尼泊尔巴克塔布尔区不同农场使用的不同有机肥料来源的营养成分

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50705

Reena Sharma, S. Kandel, S. Khadka, Suraj Chaudhary

{"title":"Nutrient contents in different sources of organic manures used in different farms of Bhaktapur district, Nepal","authors":"Reena Sharma, S. Kandel, S. Khadka, Suraj Chaudhary","doi":"10.3126/janr.v5i1.50705","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50705","url":null,"abstract":"Organic manure contributes carbonaceous matter to soil, which when decomposed, offers mineral nutrients to plants, also acts as a base exchange material, and helps to improve the physical, chemical, and biological aspects of soil. This study was conducted to assess the amount of total nitrogen, available phosphorous, available potassium, pH, under various organic manure sources. Collected organic matter samples were tested for total nitrogen, available phosphorus, available potassium, soil organic matter, and pH at the soil laboratory of Nepal Polytechnic College, Bharatpur-11, Chitwan, using the NARC, Soil Science Research Centre, Khumaltar, Lalitpur standard rating. The overall nitrogen concentration of goat dung was 1.667%, whereas buffalo manure had the lowest at 0.665%. The available phosphorus content of organic manure in the research area ranged from 0.732% in vermi-compost to 0.432% in compost, with substantial differences amongst manure samples. The goat manure had the highest potassium level (0.853%), whereas buffalo manure had the lowest (0.513%). The pH value of goat manure was 8.4 while the pH content of compost manure was 7.567. The maximum amount of organic matter (54.8) was found in buffalo manure, while the lowest (46.3) was found in vermi compost. The maximum amount of organic matter (54.8%) was found in buffalo manure, while the lowest (46.3%) was found in vermi compost. Modern technology must be adapted for successful and improved manure production. To increase the availability and maintenance of nutrients in organic manure, methods such as covering the manure to protect it from rain and sun, avoiding waterlogged conditions, and correct manure decomposition can be implemented. \u0000 ","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43000425","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}

引用次数: 1

Comparison of different cereal grains for hydroponic fodder production in locally constructed polyhouse at Khumaltar, Lalitpur, Nepal 尼泊尔拉利特普尔库穆塔尔当地建造的多屋水培饲料生产中不同谷物的比较

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50378

S. Upreti, R. Ghimire, Niraj Banskota

{"title":"Comparison of different cereal grains for hydroponic fodder production in locally constructed polyhouse at Khumaltar, Lalitpur, Nepal","authors":"S. Upreti, R. Ghimire, Niraj Banskota","doi":"10.3126/janr.v5i1.50378","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50378","url":null,"abstract":"Hydroponic fodder production technology involves an intensive method of quality fodder production in less space and in a shorter duration. An experiment was conducted to compare the different cereal grains under hydroponic fodder production for the fodder yield, fodder quality, and per unit production cost in a locally constructed polyhouse. Maize (Zea mays L.), oat (Avena sativa L.) and wheat (Triticum aestivum L.) were evaluated as the treatments. The experiment was carried out in Completely Randomized Design (CRD) with 12 replications at National Pasture and Fodder Research Program in July 2017 and July 2018. The observations were taken on plant morphological characters, fodder yield (including root mat), fodder nutrient composition and expenses in variable costs. The results of the study showed that the fodder yield varied significantly (P<0.05) for different cereal grains. The hydroponic fodder yields from each kg grain were recorded higher in fodder oat (7.96 kg) compared to wheat (6.76 kg) and maize (5.32 kg). Similarly, the crude protein (CP) content of the fodder was higher in wheat (16.16%) compared to oat (13.96%) and maize (12.51%). The cost of hydroponic maize, oat and wheat fodder production were obtained as recorded NPR 20.64, 24.67 and 18.76 per kg, respectively.","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46043748","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}

引用次数: 0

Effect of mulch materials on potato production and soil properties in high hill of Parbat, Gandaki Province, Nepal 覆盖材料对尼泊尔甘达基省帕尔巴特高山丘马铃薯生产及土壤性质的影响

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50362

S. Timilsina, Asmita Khanal, CK Timilsina, TB Poon

{"title":"Effect of mulch materials on potato production and soil properties in high hill of Parbat, Gandaki Province, Nepal","authors":"S. Timilsina, Asmita Khanal, CK Timilsina, TB Poon","doi":"10.3126/janr.v5i1.50362","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50362","url":null,"abstract":"An experiment for two consecutive years (2017 and 2018) was conducted to evaluate the use of mulching materials in increasing productivity and profitability of potato production. The experiment was conducted in Randomized Complete Block Design (RCBD) with five different mulching materials including control replicated for four times namely, banmara (Agertina adenophora) weed (T1), black polythene sheet (T2), white polythene sheet (T3), commercially used mulch paper having black color outside and silver color inside (T4) and farmers practice (T5) as a control with no mulch. The research result revealed that all the mulching materials significantly (p value ≤ 0.05) increased tuber yield and yield attributing characters of potato as compared with control (no mulch). The highest tuber yield was obtained from mulching with commercial mulch paper followed by mulching with black polythene sheet in both years. Mulching with banmara also produced significantly (p value ≤ 0.01) higher tuber yield than no mulch plot in the year 2017 and 2018. Mulching practices significantly (p value ≤ 0.05) improved the soil available phosphorus. The incremental benefit cost ratio was highest (2.97) in the mulched with banmara followed by commercial mulch paper (2.12). The banmara mulch was also profitable with comparatively higher tuber yield.","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47885131","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}

引用次数: 0

Plant protection measures to promote organic farming in Nepal: prospects and challenges 尼泊尔促进有机农业的植物保护措施：前景和挑战

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50746

S. Pandey, S. Aryal, L. Aryal, K. P. Timsina

引用次数: 0

Characterization of Nepalese rice (Oryza sativa L.) landraces for qualitative traits 尼泊尔地方稻(Oryza sativa L.)质量性状的鉴定

Journal of Agriculture and Natural Resources Pub Date : 2022-12-27 DOI: 10.3126/janr.v5i1.50509

R. Kharel, S. Subedi, Diwas Ghimire, S. Shrestha

{"title":"Characterization of Nepalese rice (Oryza sativa L.) landraces for qualitative traits","authors":"R. Kharel, S. Subedi, Diwas Ghimire, S. Shrestha","doi":"10.3126/janr.v5i1.50509","DOIUrl":"https://doi.org/10.3126/janr.v5i1.50509","url":null,"abstract":"The characterization of rice (Oryza sativa L.) landraces enables to identify phenotypically unique variables which certainly aid in rice breeding program. So, an experiment was conducted in alpha designed to characterize 188 rice landraces from NAGRC (National Agriculture Genetic Resources center) Nepal for their qualitative agromorphologies in research farm of Agriculture and Forestry University (AFU), Rampur, Chitwan in 2020 AD. Twenty-nine qualitative variables viz; twelve leaf characters, six culm characters, four panicle character and seven grain characters were observed and 26 characters revealed diverse trait expressions for each variable in experimented 188 rice accessions. Two leaf characters namely ligule colour and flag leaf attitude for early observation and one grain character (stigma colour for early observation) showed no variation among studied rice accessions. The intensity of green colour of leaf blade, culm lodging resistance and culm habit, secondary branching of panicle, and lemma and palea colour, lemma apiculus colour and sterile lemma colour, elucidated the higher variation in studied characters. The distinction revealed in qualitative characters approves the presence of abundant phenotypic diversity in the landraces assemblage and that eventually signifies the efficient and effective utilization of landrace in rice breeding programs.","PeriodicalId":32981,"journal":{"name":"Journal of Agriculture and Natural Resources","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42454293","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}

引用次数: 0