Revista Agrogeoambiental最新文献_第4页

Geotechnology applied to the remote mapping of coffee and digital currency investment simulations 土工技术应用于咖啡和数字货币投资模拟的远程地图绘制

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221710

Maria Estela Pereira Rissatti, Eduardo De Oliveira Rodrigues, Luciano Aparecido Barbosa

{"title":"Geotechnology applied to the remote mapping of coffee and digital currency investment simulations","authors":"Maria Estela Pereira Rissatti, Eduardo De Oliveira Rodrigues, Luciano Aparecido Barbosa","doi":"10.18406/2316-1817v14n120221710","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221710","url":null,"abstract":"Coffee production is an activity of great economic and social importance in Brazil. This agribusiness segment stands out in the economy of small cities in southern Minas Gerais, as it involves family farming and the permanence of the rural population in the countryside. This study aimed to contribute and adapt geotechnology-based methods for the remote mapping of coffee and the strengthening of the permanence of this population, providing an online platform to simulate coffee trading. The municipality of Inconfidentes/MG was the study area. Orbital images of the Sentinel-2A satellite were used in the development of the study. Images were classified in a supervised way with the random forest classifier in Google Earth Engine (GEE) and later used as a data source in the online platform developed in the Application Programming Interface (API) Leaflet to simulate coffee trading involving the cryptocurrency Coffee Coin. Results allowed the identification and mapping of coffee growing areas by remote sensing and, also, to demonstrate that the online platform can help in the planning of new investments in coffee production, in addition to presenting an overview of the economic importance of coffee to the municipality.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47065475","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}

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Fixed-time artificial insemination in Churra Galega Bragançana ewes: Churra Galega Bragançana母羊的定时人工授精：

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221748

Daiane Moreira Silva, Hélder Miranda Pires Quintas, Liliana Maria Sampaio dos Santos, Armindo De Carvalho Neves Álvaro, Paulo Jorge Pereira Afonso, Ramiro CorujeiraValentim

{"title":"Fixed-time artificial insemination in Churra Galega Bragançana ewes:","authors":"Daiane Moreira Silva, Hélder Miranda Pires Quintas, Liliana Maria Sampaio dos Santos, Armindo De Carvalho Neves Álvaro, Paulo Jorge Pereira Afonso, Ramiro CorujeiraValentim","doi":"10.18406/2316-1817v14n120221748","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221748","url":null,"abstract":"This work was carried out with the objective of studying the effect of the anti-reflux device for ovine insemination (DARIO) on the fertility rate in ewes of the native Portuguese breed Churra Galega Bragançana (CGB) artificially inseminated at fixed-time. Eighty-one ewes aged between one and five years were used. At the end of April 2021, ewes’ reproductive control was carried out, using a short progestagen treatment (five days) + equine chorionic gonadotropin (eCG). Cervical artificial insemination (AI) was performed at fixed-time (55 hours after the end of the hormonal treatment), with cooled semen. All ewes were inseminated by the same inseminator: 39 ewes with the DARIO tip on the end of the sheath and 42 without this tip. The pregnancy diagnosis was made by ultrasonography 41 days after AI. Age and body condition (BC) did not affect the ewes’ response to the applied hormonal treatment or the fertility rate. Approximately 95.1% of the ewes responded to the progestagen + eCG treatment. Forty-one days after AI, 86.4% of the ewes were pregnant. The use of the DARIO tip did not affect the fertility rate.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42077309","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}

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AGRADECIMENTOS 谢谢你

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221780

Revista Agrogeoambiental

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Diversity and conservation of birds associated with an urban landscape in the southwest Brazilian Amazon 巴西亚马逊西南部城市景观中鸟类的多样性和保护

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221692

A. Moura, E. Candido, F. S. Machado, Leandro Henrique Leite, R. Mariano, M. Fontes

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Identification of the most favorable months for coffee trade 确定咖啡贸易最有利的月份

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Revista Agrogeoambiental Pub Date : 2023-01-27 DOI: 10.18406/2316-1817v14n120221689

B. M. R. Melo, Carla Soares de Almeida, Fernanda Góes da Silva, F. da Silva Barbosa, Douglas Goulart Castro, Leonardo Ribeiro

{"title":"Identification of the most favorable months for coffee trade","authors":"B. M. R. Melo, Carla Soares de Almeida, Fernanda Góes da Silva, F. da Silva Barbosa, Douglas Goulart Castro, Leonardo Ribeiro","doi":"10.18406/2316-1817v14n120221689","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221689","url":null,"abstract":"Coffee is traded on a stock exchange on which the goods are priced and influence their value both in the physical market and in the futures market, which causes doubts in coffee growers about the most opportune moment for trading. Then, the goal of this work was to consider the most favorable and unfavorable months over the years for the arabica and robusta coffee trading in the physical market and arabica coffee in the future market. The work was carried out using historical data on the price of coffee in Brazil, stratifying it into periods and listing for each year of evaluation the percentage of months with the first and second highest and lowest prices. Arabica and Robusta coffee were assessed respectively from 2018 to 1981 and from 2018 to 1995. Arabica coffee in the futures market was analyzed from 2018 to 1980. The evaluation was performed using descriptive statistics and correlation analysis among the modalities of coffee trading in Brazil. Great instability was observed between the months of high and low prices for coffee trading. This shows the uncertainties existing in the market; however, it is possible to observe a trend of the most favorable and unfavorable months for commercialization. It is determined that for arabica coffee, December and January are the most favorable and unfavorable months for trading, respectively. For robusta coffee, the most favorable and unfavorable sales months were June and January. Arabica coffee in the futures market January was the best month for trading and February in the opposite condition, in alternate years, the least favorable month.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45146915","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}

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Mapping of restrictive factors of land in the hydrographic basin of the middle section of the Paraíba River Paraíba河中段水文流域土地限制因子的制图

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Revista Agrogeoambiental Pub Date : 2022-11-23 DOI: 10.18406/2316-1817v14n120221694

Paulo Roberto Megna Francisco, V. F. Silva, Djail Santos, George do Nascimento Ribeiro, Gypson Dutra Junqueira Ayres

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Precipitation pattern in Viçosa-MG: a case study via time series 维索萨MG的降水模式：基于时间序列的案例研究

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Revista Agrogeoambiental Pub Date : 2022-10-17 DOI: 10.18406/2316-1817v14n120221642

Maurício Silva Lacerda, Helgem de Souza Ribeiro Martins, Alex da Silva Temoteo, Paulo César Emiliano

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Social wasps (Vespidae, Polistinae) in a Cerrado agrosystem in the state of Minas Gerais, southeastern Brazil 巴西东南部米纳斯吉拉斯州塞拉多农业系统中的群居黄蜂（胡蜂科，Politinae）

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Revista Agrogeoambiental Pub Date : 2022-09-06 DOI: 10.18406/2316-1817v14n120221717

Leonardo Dutra Barbosa, Gabriel de Castro Jacques, Marcos Magalhães de Souza

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Antifungal action of essential oils on Colletotrichum musae in vitro 精油对炭疽菌体外抑菌作用的研究

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Revista Agrogeoambiental Pub Date : 2022-09-06 DOI: 10.18406/2316-1817v14n120221715

D. C. Rezende, Yuri José Galvão Chagas, Hebe Perez de Carvalho, Beatriz Fagundes de Carvalho, Ítalo Vilar Fernandes, Ana Carolina Perez de Carvalho dos Santos

{"title":"Antifungal action of essential oils on Colletotrichum musae in vitro","authors":"D. C. Rezende, Yuri José Galvão Chagas, Hebe Perez de Carvalho, Beatriz Fagundes de Carvalho, Ítalo Vilar Fernandes, Ana Carolina Perez de Carvalho dos Santos","doi":"10.18406/2316-1817v14n120221715","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221715","url":null,"abstract":"Anthracnose is a phytosanitary problem affecting banana producers. It is a major postharvest disease and is mainly controlled by the use of fungicides. As the search for healthy foods free of chemical residues has increased among consumers, the objective of this study was to evaluate the in vitro antifungal efficacy of different concentrations of essential oils on mycelial growth of Colletotrichum musae, the causal agent of anthracnose in banana fruits. The essential oils used were citronella grass (Cymbopogon nardus), lemongrass (Cymbopogon citrates), clove (Syzygium aromaticum), and basil (Ocimum basilicum). The essential oils were added to a potato dextrose agar medium at concentrations of 0, 0.5, 1.0, 1.5, 2.0,and 2.5 μLmL−1 and distributed in 90 mm diameter Petri dishes. Mycelium discs from the fungal colony, grown for seven days, were transferred to Petri dishes containing the oils and incubated at 25°C with a photoperiod of 12 h (light/dark) cycle for eight days. Colony growth was monitored daily to determine the percentage, index of inhibition of mycelial growth, and average diameter of the colonies. The experimental design consisted of randomized blocks with six different extract concentrations with replicates (n = 4). Each oil extract was then evaluated separately. The essential oils from citronellagrass, lemongrass, and basil inhibited mycelial growth to the proportion that the oil concentration increased. The total inhibition of the pathogen occurred at a concentration of 1.5 µLmL−1 using citronellagrass and lemongrass and 2.5 µLmL−1 using basil. However, essential oils from clove completely inhibited the mycelial growth of C. musae at a concentration of 0.5 µLmL−1. The tested essential oils showed in vitro antifungal activity against C. musae at different concentrations. However, essential oils from clove are unique in exhibiting a better inhibitory effect on mycelial growth at lower concentrations.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44457305","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}

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Fragmentation patterns of forest and cerrado vegetation in northeastern Mato Grosso 马托格罗索州东北部森林和塞拉多植被破碎化格局

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Revista Agrogeoambiental Pub Date : 2022-09-06 DOI: 10.18406/2316-1817v14n120221684

Raphael Maia Aveiro Cessa, Uirá Do Amaral, Felipe Gimenes Rodrigues Silva, N. N. Cometti

{"title":"Fragmentation patterns of forest and cerrado vegetation in northeastern Mato Grosso","authors":"Raphael Maia Aveiro Cessa, Uirá Do Amaral, Felipe Gimenes Rodrigues Silva, N. N. Cometti","doi":"10.18406/2316-1817v14n120221684","DOIUrl":"https://doi.org/10.18406/2316-1817v14n120221684","url":null,"abstract":"This study sought to evaluate the fragmentation patterns of the forest and cerrado vegetation in the northeast of the state of Mato Grosso. The investigation used landscape metrics after extracting those fragments from the shapefile of soil use and occupation of the state of Mato Grosso and their application on the file of a negative buffer of 50.00. Forest and cerrado fragments were grouped into size classes in hectares. The quantified and specialized landscape metrics were area (mean perimeter/area ratio, core areas index, edge density), shape (mean shape indicator) and proximity (distance from the nearest neighbor in meters and the proximity index). The northeast of the state of Mato Grosso is occupied by 34.81% and 27.22% of the forest and cerrado fragments, respectively. The sum of the areas of the larger area size classes (classes >10,000 to 30,000 ha and >30,000 ha) is higher for forest fragments, which is indicative of the more expressive presence of the Amazon biome in that region and evidence of a more significant anthropic pressure on the fragmentation of the cerrado. In the northeast of the state of Mato Grosso, larger areas of forest and cerrado fragments are more protected than the smaller areas, as they have a smaller internal/external area ratio, higher percentage of central area, and less participatory border in relation to the total area.","PeriodicalId":43096,"journal":{"name":"Revista Agrogeoambiental","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2022-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41719601","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