Bioscience Journal最新文献_第8页

Acute diarrheal diseases and their relationship with water quality in Araguatins, Tocantins, Brazil: a cross-sectional study 巴西托坎廷斯阿拉瓜汀地区急性腹泻病及其与水质的关系:一项横断面研究

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-62592

Késia Chaves da Silva, C. N. K. Suda

{"title":"Acute diarrheal diseases and their relationship with water quality in Araguatins, Tocantins, Brazil: a cross-sectional study","authors":"Késia Chaves da Silva, C. N. K. Suda","doi":"10.14393/bj-v39n0a2023-62592","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-62592","url":null,"abstract":"Diarrhea remains a significant cause of death worldwide among children under five years old. In Brazil, the highest incidence of the disease occurs in the north region, and the epidemiological characteristics of diarrhea in Araguatins, TO, northern Brazil, have not been reported. The present study aimed to analyze the occurrence of acute diarrheal diseases (ADD) in Araguatins between 2014 and 2019 and its relationship with the quality of the public water supply. The study also analyzed the correlation between ADD frequency and rotavirus vaccination coverage of children. The data were obtained from the Brazilian Ministry of Health (SIVEP-DDA database) and the Health Surveillance Agency of Araguatins. The reported cases of acute diarrheal diseases significantly increased in 2018 and 2019 compared to the other years, and the occurrence of greater severity in the age group of ³10 years increased in the same period. The highest incidence of diarrhea occurred in 2018 when the application of rotavirus vaccines to children was the lowest. In most years investigated, the cases of acute diarrheal diseases occurred in both rainy and dry periods. However, in 2016, diarrhea cases were concentrated in the dry period, and Escherichia coli and total coliforms were found more frequently in the public water supply. The highest frequency of contamination with E. coli and total coliforms occurred in the Downtown area. The conclusion was that diarrheal disease may be caused, at least partially, by water-conveying agents in the treated public water supply of the Araguatins.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48221896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","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 surface treatment on flexural strength and subcritical crack growth of lithium disilicate: an in vitro study 表面处理对二硅酸锂弯曲强度和亚临界裂纹扩展的影响：体外研究

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-61416

R. D. Carvalho, J. S. Miranda, N. C. Ramos, I.S.S.L. Weitzel, M. Amaral, E. Kimpara

{"title":"Effect of surface treatment on flexural strength and subcritical crack growth of lithium disilicate: an in vitro study","authors":"R. D. Carvalho, J. S. Miranda, N. C. Ramos, I.S.S.L. Weitzel, M. Amaral, E. Kimpara","doi":"10.14393/bj-v39n0a2023-61416","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-61416","url":null,"abstract":"Alternative surface treatments have been proposed for the cementation of lithium disilicate ceramics aiming to improve adhesive and flexural strength under fatigue. This study aimed to evaluate the slow crack growth (SCG) parameters of the lithium disilicate ceramic after hydrofluoric acid (HF) etching or air abrasion (AB) as surface treatments. Ceramic discs were treated with HF (5%, 20 s) or AB (30 µm silica-modified alumina particles, 2.8 bar, 10 mm distance, 15 s), and received a layer of resin cement. The surface roughness after surface treatment was evaluated (n = 5). Samples were tested in a piston-on-three-ball assembly to evaluate the flexural strength (n = 20), inert strength (n = 25), and to determine SCG parameters n and D (n = 35). The highest roughness (p < 0.01) was observed in the AB group, with the highest reliability according to the Weibull analysis, but the lowest SCG susceptibility. Flexural (p = 0.03) and inert strength (p < 0.01) were the greatest in the HF group. Despite exhibiting lower strength than 5% HF, air abrasion may be an alternative for the surface treatment of lithium disilicate surfaces, indicating the best prognosis over time.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49377059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Rooibos (Aspalathus linearis) on the Testicular Parenchyma of Adult BALB/C Mice Submitted to a Hypercaloric Diet 路易士对高热量饮食后成年BALB/C小鼠睾丸实质的影响

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-64537

Hilara Niemeyer Ruas, João Vitor Lopes-Ferreira, F. C. Dias, Maria Emília Soares Martins dos Santos, Angelica de Oliveira Gomes, M. B. Freitas, M. Gomes

{"title":"Effects of Rooibos (Aspalathus linearis) on the Testicular Parenchyma of Adult BALB/C Mice Submitted to a Hypercaloric Diet","authors":"Hilara Niemeyer Ruas, João Vitor Lopes-Ferreira, F. C. Dias, Maria Emília Soares Martins dos Santos, Angelica de Oliveira Gomes, M. B. Freitas, M. Gomes","doi":"10.14393/bj-v39n0a2023-64537","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-64537","url":null,"abstract":"Oxidative stress due to obesity plays a detrimental role in the testicular microenvironment and sperm parameters. We explored the impact of a hypercaloric diet in male BALB/c mice as a condition to trigger damage to the spermatogenic process and the antioxidant effect of Aspalathus linearis as well. We used a hypercaloric diet in animals divided into 3 groups: Control, Hypercaloric diet control (HC) and Hypercaloric diet and Rooibos infusion (HCR). Morphometric parameters, enzyme dosages, cell viability, and tubular histopathology were evaluated. Body weight increased in HCR animals at weeks 3, 4, and 8. We found a reduction in seminiferous epithelium height, with an increase in the tubular diameter of the HCR group. Catalase levels were lower in HC and HCR, while carbonyl protein was decreased in HC. We estimate that it induces oxidative stress (OS) capable of affecting the seminiferous epithelium and that the infusion of A. linearis does not demonstrate a potential benefit in cell preservation.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44813665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The presence of parasitic structures in sandy soil samples from beaches located along the north coast of Rio Grande do Sul, Brazil 寄生结构存在于巴西南大德州北部海岸沙滩上的沙土样本中

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-63281

Josandro dos Santos Da Silva, Thaís Dalzochio

{"title":"The presence of parasitic structures in sandy soil samples from beaches located along the north coast of Rio Grande do Sul, Brazil","authors":"Josandro dos Santos Da Silva, Thaís Dalzochio","doi":"10.14393/bj-v39n0a2023-63281","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-63281","url":null,"abstract":"Beaches are a source of parasite contamination because protozoan cysts and helminth eggs and larvae can remain viable in sandy soils for months. Parasitic infections are mainly related to hygiene conditions, health, and environmental education, and can affect the life quality of the population. Therefore, this study aimed to assess the presence of parasitic structures in five beaches located along the north coast of Rio Grande do Sul, Brazil. Eighty samples were collected in August and September 2020 at the beaches of Torres, Tramandaí, Capão da Canoa, Arroio Teixeira, and Arroio do Sal and processed with the spontaneous sedimentation method for microscopic analyses. The results showed that 32% (26/80) of samples were positive for the presence of parasitic structures, and there was a significantly higher frequency of positive samples in September than in August. Torres was the beach with the highest frequency of positive samples, while Arroio Teixeira and Arroio do Sal presented the lowest frequency of contamination. Nematode larvae, including hookworm larvae, were the most prevalent parasitic structures in the samples. Hence, the sandy soil from beaches must be monitored to develop programs and strategies for improving infrastructures and basic sanitation conditions, thus ensuring the health of the population.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43550731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential of Tetradenia riparia leaf essential oil and its fractions in controlling Aedes aegypti and Rhipicephalus microplus larvae 四叶挥发油及其组分防治埃及伊蚊和小Rhipipcephalus幼虫的潜力

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-63187

L. Ferarrese, Hérika Line Marko de Oliveira, Gabriella Santana De Oliveira, Juliana Aparecida Mendonça, Wilsandrei Cella, Mário De Luca Neto, Rodrigo Sadao Inumaro, Larissa Rafaela de Paula Ferreira, Heris Lorenzi dos Santos Perfeito, E. Jacomassi, J. Gonçalves, Ranulfo Piau Júnior, D. Gonçalves, C. M. Fernandez, Z. C. Gazim

{"title":"Potential of Tetradenia riparia leaf essential oil and its fractions in controlling Aedes aegypti and Rhipicephalus microplus larvae","authors":"L. Ferarrese, Hérika Line Marko de Oliveira, Gabriella Santana De Oliveira, Juliana Aparecida Mendonça, Wilsandrei Cella, Mário De Luca Neto, Rodrigo Sadao Inumaro, Larissa Rafaela de Paula Ferreira, Heris Lorenzi dos Santos Perfeito, E. Jacomassi, J. Gonçalves, Ranulfo Piau Júnior, D. Gonçalves, C. M. Fernandez, Z. C. Gazim","doi":"10.14393/bj-v39n0a2023-63187","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-63187","url":null,"abstract":"Tetradenia riparia (Hochst.) Codd (Lamiaceae) is a shrub, commonly known as ginger bush or false myrrh, and several studies have shown that T. riparia exhibits a variety of biological properties. This study aimed to determine the chemical composition of T. riparia essential oil and its fractions, investigate their anticholinesterase activity, and assess their larvicidal activity against the cattle tick Rhipicephalus microplus and the mosquito Aedes aegypti. Eleven essential oil fractions were obtained by fractionation and analyzed by gas chromatography/mass spectrometry. Larvicidal activity against R. microplus and third-instar A. aegypti was assessed using a larval packet test and a larval immersion test, respectively. Anticholinesterase activity was determined by a bioautographic method. Forty-nine compounds were identified in the essential oil, of which the major classes were oxygenated sesquiterpenes (45.95%) and sesquiterpene hydrocarbons (35.20%) and the major components were isospathulenol (17.40%), β-caryophyllene (15.61%), 14-hydroxy-9-epi-caryophyllene (10.07%), 14-hydroxy-α-muurolene (8.32%), and 9β,13β-epoxy-7-abietene (5.53%). Bioassays showed that T. riparia essential oil (LC50 = 1.56 µg/mL) and FR3 (LC50 = 0.30 µg/mL) were the most active against R. microplus and A. aegypti larvae, respectively. The essential oil and FR1, FR2, and FR3 exhibited acetylcholinesterase inhibitory activity. These results indicate that T. riparia essential oil and its fractions hold promise in the development of novel, environmentally safe agents for the control of R. microplus and A. aegypti larvae.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46996066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factor analysis and cronbach’s alpha for studying the knowledge of adolescents on HIV/AIDS: a construct validation study 青少年HIV/AIDS知识的因子分析与cronbach’s alpha:一项结构验证研究

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-62735

J. Cordeiro, Waleska Fernanda Souto Nóbrega, Milena Edite Casé de Oliveira, K. Gomes, Tiago Almeida de Oliveira, Â. G. R. C. Oliveira

引用次数: 0

Attitudes and knowledge about contraceptive use of saudi married women: a cross-sectional study approach 沙特已婚妇女对避孕药具使用的态度和知识：横断面研究方法

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-65902

A. M. Alqahtani, Khalid Orayj, S. M. Alshahrani, Afaf A Aldahish, T. Alqahtani, Amani H AlShahrani, N. Alshahrani, Ahlam Alshahrani, Hajar Saad Dajam, A. Alqarni

{"title":"Attitudes and knowledge about contraceptive use of saudi married women: a cross-sectional study approach","authors":"A. M. Alqahtani, Khalid Orayj, S. M. Alshahrani, Afaf A Aldahish, T. Alqahtani, Amani H AlShahrani, N. Alshahrani, Ahlam Alshahrani, Hajar Saad Dajam, A. Alqarni","doi":"10.14393/bj-v39n0a2023-65902","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65902","url":null,"abstract":"The speedy change in the Saudi Arabian community's socio-demographic pattern will significantly influence reproductive attitudes and practices with increasing preferences toward family planning because of the use of contraceptives. The current study was conducted to determine the attitudes and knowledge of married women in the Aseer region of Saudi Arabia regarding contraceptives use. Saudi married women from the Aseer region were the participants of this cross-sectional study. The study's objectives were covered via a standardized questionnaire, and the study comprised of 412 married women. A 100 % participant’s response was demonstrated, while 31.8 % of the respondents were 31-40 years old. Most of the participants have a great awareness and knowledge about contraceptives, while (n=324; 78.6%) had previously used contraceptives. Additionally, 297 (72.1%) have intention to use contraceptive methods in the future. Majority of the participants (n=297; 91.6%) considered the economic and family planning as a reason for using the contraceptives, while natural family planning was mostly preferred (n=202; 49%). Logistic regression analysis exhibited significant correlation between the age, education, employment, monthly income and children number. The findings show that Saudi married women have high perceptions and knowledge of contraception. However, more effort is required to raise awareness regarding family planning and contraceptives, whereas the policy makers must exclude the obstacles to women from using contraceptives.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49576566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Complications after percutaneous transluminal coronary angioplasty and associated factors 经皮冠状动脉腔内成形术后并发症及相关因素

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-65928

Gabriela Lucas Cardoso, M. M. S. Felix, Maria Beatriz Guimarães Raponi, F. de Martino, P. Pires, M. H. Barbosa

{"title":"Complications after percutaneous transluminal coronary angioplasty and associated factors","authors":"Gabriela Lucas Cardoso, M. M. S. Felix, Maria Beatriz Guimarães Raponi, F. de Martino, P. Pires, M. H. Barbosa","doi":"10.14393/bj-v39n0a2023-65928","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65928","url":null,"abstract":"This study aimed to analyze the incidence of vascular complications and associated factors in patients undergoing elective percutaneous transluminal coronary angioplasty. This study is observational, quantitative, and longitudinal, and followed 50 patients undergoing elective percutaneous transluminal coronary angioplasty. An instrument for the sociodemographic, clinical, procedure, and vascular complications characterization was used for data collection. And descriptive statistics, bivariate analysis, and multiple binomial logistic regression were used for data analysis. The level of statistical significance considered was 95%. It was detected the prevalence of male patients (70%), elderly (54%), and diagnosed with systemic arterial hypertension (72%). As for the percutaneous access route prevailed the radial approach (64%). Age and body mass index were identified as possible risk factors for vascular complications. In the 50 procedures performed, there was a prevalence of hematomas (20%) and bleeding (10%). Among the complications prevailed radial Early Discharge After Transradial Stenting of Coronary (60%), large femoral hematoma (20%), small femoral hematoma (20%), and bleeding (Bleeding Academic Research Consortium 2) (100%). The results concluded an elevated incidence of vascular complications in the first 24 hours after elective percutaneous transluminal coronary angioplasty. This study contributes to research, assistance, and training in health and nursing by identifying post-PTCA vascular complications, minimizing their progression, handling their management, and developing health care safety protocols.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45700423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and evaluation of toxicity and antimicrobial activity of rifampicin associated with iron oxide nanoparticles 利福平氧化铁纳米颗粒的合成及毒性和抗菌活性评价

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-24 DOI: 10.14393/bj-v39n0a2023-65125

Joyce Farias Louza De Sousa, P. Naves, L. Guilherme

{"title":"Synthesis and evaluation of toxicity and antimicrobial activity of rifampicin associated with iron oxide nanoparticles","authors":"Joyce Farias Louza De Sousa, P. Naves, L. Guilherme","doi":"10.14393/bj-v39n0a2023-65125","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-65125","url":null,"abstract":"Rifampicin has broad-spectrum antimicrobial activity, but it can cause nephrotoxic and hepatotoxic damage because high doses are required. Nanosystems emerge as a perspective to improve the transport systems of this drug. In this work, iron oxide nanoparticles were synthesised, functionalized with lauric acid, and rifampicin was incorporated into the nanosystem. The samples were characterized by spectroscopic techniques: electronics in the visible ultraviolet region (UV-vis), vibrational absorption in the infrared region (IR), X-ray diffractometry (XRD), and dynamic light scattering (DSL). The toxicity of the nanocompounds and the antimicrobial activity against Staphylococcus aureus ATCC 25923 were studied by the Artemia salina lethality and disc diffusion techniques, respectively. As a result, IR analysis showed characteristic vibrations of laurate and rifampicin on the surface of the nanosystem. The presence of magnetic iron oxide was confirmed by XRD and the mean diameter of the crystallites was 8.37 nm. The hydrodynamic diameter of rifampicin associated with the nanosystem was 402 nm and that of the nanosystem without rifampicin was 57 nm. The compounds did not show toxicity to Artemia salina and the in vitro antimicrobial activity against Staphylococcus aureus was slightly decreased when rifampicin was associated with the nanosystem. In general terms, the results showed that iron oxide nanoparticles showed no toxicity and reduced the toxicity of rifampicin by 41.54% when carried compared to free rifampicin. Therefore, magnetic iron oxide nanoparticles may have the potential to act as a platform for associated drugs.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66670949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial variability of soil fertility under agroforestry system and native forest in eastern Amazonia, Brazil 巴西东部亚马逊地区农林业系统和原生林土壤肥力的空间变异

IF 0.5 4区农林科学

Bioscience Journal Pub Date : 2023-02-03 DOI: 10.14393/bj-v39n0a2023-62830

Cassio Rafael Costa dos Santos, Augusto Takayuki Matsunaga, Luiz Rodolfo Reis Costa, Mario Lima dos Santos, Alberto Bentes Brasil Neto, R. P. Rodrigues, M. D. N. M. Maciel, V. S. Melo

{"title":"Spatial variability of soil fertility under agroforestry system and native forest in eastern Amazonia, Brazil","authors":"Cassio Rafael Costa dos Santos, Augusto Takayuki Matsunaga, Luiz Rodolfo Reis Costa, Mario Lima dos Santos, Alberto Bentes Brasil Neto, R. P. Rodrigues, M. D. N. M. Maciel, V. S. Melo","doi":"10.14393/bj-v39n0a2023-62830","DOIUrl":"https://doi.org/10.14393/bj-v39n0a2023-62830","url":null,"abstract":"The usage of spatial tools might be helpful in the optimization of decision-making regarding soil management, with technologies that assist in the interpretation of information related to soil fertility. Therefore, the present study evaluated the spatial variability of chemical attributes of the soil under an agroforestry system compared to a native forest in the municipality of Tomé-açu, Eastern Amazon, Brazil. Soil samples were performed at 36 points arranged in a 55 x 55 m grid. The soils were prepared and submitted to analysis in order to determine pH in H2O, exchangeable calcium, magnesium, potassium and aluminium, available phosphorus, potential acidity, organic matter, bases saturation and aluminium saturation. For each soil attribute, the spherical, gaussian and exponential models were adjusted. After the semivariograms fitting, data interpolation for assessment of spatial variability of the variables was performed through ordinary kriging. The spherical and gaussian models were the most efficient models in estimation of soil attributes spatial variability, in most cases. Most of variables presented a regular spatial variability in their respective kriging maps, with some exceptions. In general, the kriging maps can be used, and we can take them as logistical maps for management and intervention practices in order to improve the soil fertility in the study areas. The results principal components indicate the need for integrated management of soil chemical attributes, with localized application of acidity correctors, fertilizers and other types of incomes, using the spatial variability of these fertility variables.","PeriodicalId":8951,"journal":{"name":"Bioscience Journal","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41577044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1