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Dambroz Alice P. B. Minella Jean P. G. Tiecher Tales Moura-Bueno Jean M. Evrard Olivier Pedron Fabricio A. Dalmolin Ricardo S. D. Bernardi Felipe Schneider Fabio J. A. Cerdan Olivier 《Journal of Soils and Sediments》2022,22(3):1023-1040
Journal of Soils and Sediments - Erosion and its spatial distribution in three agricultural headwater catchments were assessed in the border of the volcanic plateau in Southern Brazil. We analyzed... 相似文献
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Ueno TE Gonçalves VS Heinemann MB Dilli TL Akimoto BM de Souza SL Gennari SM Soares RM 《Tropical animal health and production》2009,41(4):547-552
Serum samples from 1028 sheep were collected from 32 herds within Federal District, in the central region of Brazil. The samples
were examined by indirect fluorescent antibody test (IFAT) using sera diluted 1:64 and 1:50 as cut-off values for the detection
of antibodies against Toxoplasma gondii and Neospora caninum, respectively. The observed prevalence for T. gondii infection was 38.22% (26.81%<CI 0.95<49.62%), and the titers ranged from 64 to 65536. The observed prevalence for N. caninum infection was 8.81% (7.08%<CI 0.95<10.53%). The titers ranged from 50 to 51200. The reactant sera to both pathogens corresponded
to 4.67% of the samples. The risk factors were not determined because of the absence of negative herds for T. gondii and the high proportion of positive herds for N. caninum (87.50%). The prevalence for T. gondii infection was significantly higher among males than in females. The present work is the first report on seroprevalence of
T. gondii and N. caninum in sheep from Federal District and shows that infection by both parasites is widespread in the ovine population from this
region. 相似文献
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Tales Tiecher Luiz Gustavo De Oliveira Denardin Amanda Posselt Martins Osmar Henrique Pias Leonardo Rodrigues Nunes Tadeu Luis Tiecher 《Archives of Agronomy and Soil Science》2013,59(14):1998-2012
ABSTRACTThe objective of this study was to evaluate the short-term dynamics of chemical species of sulfate and the main basic cations in the soil solution affected by the application of different sulfur (S) rates using agricultural gypsum. The experiment was carried out in an Ultisol with 14% clay, managed under no-tillage for 14 yrs in Southern Brazil. Four rates of S (0, 5, 10 and 20 kg of S ha?1) were evaluated using agricultural gypsum (CaSO4) as S-source. The soil solution was collected using porous capsule lysimeters before and at 9, 17, 37, 60, 76 and 109 d after the gypsum application, at depths of 20 and 60 cm. Surface application of gypsum rapidly increases the sulfate concentration in the soil solution at 20 cm depth. However, in less than 30 d, the effect of the S rates on the soil solution at 20 cm was minimal, with an increase in sulfate concentration in the soil solution at 60 cm depth after 17 d. Sulfated fertilization via agricultural gypsum at rates greater than 10 kg ha?1 in sandy soil with low cation exchange capacity increased the mobility of Ca and Mg in the soil profile. 相似文献
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Tonello Maurício S. Hebner Tayler S. Sterner Robert W. Brovold Sandra Tiecher Tales Bortoluzzi Edson C. Merten Gustavo H. 《Journal of Soils and Sediments》2020,20(2):1060-1073
Journal of Soils and Sediments - The lability of phosphorus (P) in Lake Superior sediments and its relationship with sediment mineralogy and geochemistry remains poorly understood. The purpose of... 相似文献
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Jos Janderson Ferreira COSTA lvio GIASSON Elisngela Benedet DA SILVA Tales TIECHER Antonny Francisco Sampaio DE SENA Ryshardson Geovane Pereira de Oliveira E SILVA 《土壤圈》2022,32(2):294-306
Knowing the spatial distribution of soil texture,which is a physical property,is essential to support agricultural and environmental decision making.Soil texture can be estimated using visible,near infrared,and shortwave infrared(Vis-NIR-SWIR)spectroscopy.However,the performance of spectroscopic models is variable because of soil heterogeneity.Currently,few studies address the effects of soil sample variability on the performance of the models,especially for larger spectral libraries that include soils that are more heterogeneous.Therefore,the objectives of this study were to:i)apply Vis-based color parameters on the stratification of a regional soil spectral library;ii)evaluate the performance of the predictive models generated from the spectral library stratification;iii)compare the performance of stratified models(SMs)and the model without stratification(WSM),and iv)explain possible changes in prediction accuracy based on the SMs.Thus,a regional soil spectral library with 1535 samples from the State of Santa Catarina,Brazil was used.Soil reflectance data were obtained by Vis-NIR-SWIR spectroscopy in the laboratory using a spectroradiometer covering the 350–2500 nm spectral range.Sand,silt,and clay fractions were determined using the pipette method.Twenty-two components of color parameters were derived from the Vis spectrum using the colorimetric models.A cubist regression algorithm was used to assess the accuracy of the applicability of the initial models(SMs and WSM)and of the validation between the clusters.Fractional order derivatives(FODs)at 0.5,1.5,and 2 intervals were used to explain possible changes in the performance of the SMs.The SMs with higher contents of clay and iron oxides obtained the highest accuracy,and the most important spectral bands were identified,mainly in the 480–550 and 850–900 nm ranges and the 1400,1900,and 2200 nm bands.Therefore,stratification of soil spectral libraries is a good strategy to improve regional assessments of soil resources,reducing prediction errors in the qualitative determination of soil properties. 相似文献
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de Souza Alonso Tales Arthur da Silva Dalila Lopes de Mello Prado Renato Soares Pedro Luiz Martins Tenesaca Luis Felipe Lata Ferreira Rivanildo Jnior 《Journal of pest science》2022,95(3):1453-1466
Journal of Pest Science - Silicon (Si) has a physical barrier effect on plant tissues, decreasing nematode infection in different crops. Notwithstanding, research on lettuce is lacking, especially... 相似文献
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Abstract – This study reports on the relationships between young-of-the-year (YOY) fish species richness and landscape and local factors in 20 backwaters of the Seine River flood plain. Using multiple linear regression, we tested the importance of three types of variable for explaining total species richness (TSR), phytophil species richness (PSR) and lithophil species richness (LSR): (1) colonisation–extinction processes, (2) habitat heterogeneity and (3) productivity. At the local scale, no variables describing habitat heterogeneity correlated with TSR, PSR or LSR. Productivity was correlated only with TSR according to a polynomial model. In contrast, variables relating to the colonisation–extinction process correlated with TSR, PSR and LSR: TSR varied mainly with backwater size, which is a surrogate of extinction, whereas PSR and LSR correlated with the relative longitudinal position of backwaters and the size of their connection to the main channel. In conclusion, it seems that the total fish richness varies as a function of local factors, whereas the components of fish diversity are rather influenced by landscape factors. 相似文献
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Becker Aline Minuzzi Cunha Heloisa Pamplona Lindenberg Antônio Corrêa de Andrade Fernanda de Carvalho Tales Boaventura Brunna Cristina Bremer da Silva Edson Luiz 《Plant foods for human nutrition (Dordrecht, Netherlands)》2019,74(4):495-500
Plant Foods for Human Nutrition - The aim of the present study was to evaluate the clinical effects and antioxidant potential of spray-dried yerba mate extract (SDME) capsules in healthy... 相似文献
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Sediment source fingerprinting: benchmarking recent outputs,remaining challenges and emerging themes
Collins Adrian L. Blackwell Martin Boeckx Pascal Chivers Charlotte-Anne Emelko Monica Evrard Olivier Foster Ian Gellis Allen Gholami Hamid Granger Steve Harris Paul Horowitz Arthur J. Laceby J. Patrick Martinez-Carreras Nuria Minella Jean Mol Lisa Nosrati Kazem Pulley Simon Silins Uldis da Silva Yuri Jacques Stone Micheal Tiecher Tales Upadhayay Hari Ram Zhang Yusheng 《Journal of Soils and Sediments》2020,20(12):4160-4193
Journal of Soils and Sediments - This review of sediment source fingerprinting assesses the current state-of-the-art, remaining challenges and emerging themes. It combines inputs from international... 相似文献
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Evrard Olivier Durand Roxanne Foucher Anthony Tiecher Tales Sellier Virginie Onda Yuichi Lefèvre Irène Cerdan Olivier Laceby J. Patrick 《Journal of Soils and Sediments》2019,19(9):3290-3301
Journal of Soils and Sediments - Spectrocolourimetric measurements provide a relatively inexpensive, quick and non-destructive alternative to the analysis of geochemical and organic matter... 相似文献
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