A produtividade e a qualidade do trigo podem ser influenciadas pela nutrição de plantas, sendo a interação entre nitrogênio e enxofre importantes na melhoria da qualidade da cultura. Objetivou-se verificar o efeito da interação entre nitrogênio e enxofre no desempenho agronômico e na qualidade tecnológica do trigo irrigado em condições do Cerrado do Estado de Mato Grosso. O experimento foi instalado em área experimental da Universidade Federal de Rondonópolis. O delineamento experimental foi em blocos casualizados, com quatro repetições. quatro repetições. As doses de nitrogênio (N) testadas foram 0, 70, 140, 210 e 280 kg ha-1, e as doses de enxofre (S) foram 0, 25, 50, 75 e 100 kg ha-1, totalizando13 tratamentos através das combinações entre os 2 nutrientes. As variáveis analisadas foram referentes ao desempenho agronômico e qualidade tecnológica dos grãos. O modelo de superfície de resposta e os termos (linear, quadrático e interação) foram avaliados por meio da análise de variância (ANOVA) e da verificação da falta de ajuste (Lack of fit), utilizando o teste F (p<0,05). Nos casos em que os critérios de seleção do modelo de superfície de resposta não foram atendidos, foram estudados analisados os efeitos isolados e interação dos fatores, utilizando a análise de regressão polinomial. Para a significância dos efeitos, foram considerados o teste F (p<0,05) da ANOVA e o teste t de Student (p<0,05). O desempenho agronômico e a qualidade tecnológica do trigo irrigado cultivado sob condições do Cerrado são influenciados pelas doses de nitrogênio entre 176 a 280 kg ha-1 e enxofre entre 38 à 100 kg ha-1
Wheat productivity and quality can be influenced by plant nutrition, and the interaction between nutrients can be synergistic or antagonistic, especially in the interaction between nitrogen and sulfur. The objective of this study was to verify the effect of the interaction between nitrogen and sulfur on the agronomic performance and technological quality of irrigated wheat in Cerrado conditions. The experiment was installed in an experimental area at the Federal University of Rondon & oacute;polis. The experimental design was in randomized blocks, with four replications. four repetitions. The nitrogen (N) doses tested were 0, 70, 140, 210 and 280 kg ha(-1), and the sulfur (S) doses were 0, 25, 50, 75 and 100 kg ha(-1), totaling 13 treatments across the combinations between the 2 nutrients. The variables analyzed referred to the agronomic performance and technological quality of the grains. The response surface model and terms (linear, quadratic and interaction) were evaluated using analysis of variance (ANOVA) and checking for lack of fit (Lack of fit), using the F test (p<0.05). In cases where the response surface model selection criteria were not met, the isolated effects and interaction of factors were analyzed using polynomial regression analysis. For the significance of the effects, the ANOVA F test (p<0.05) and the Student's t test (p<0.05) were considered. The agronomic performance and technological quality of irrigated wheat grown under Cerrado conditions are influenced by nitrogen doses between 176 and 280 kg ha(-1) and sulfur between 38 and 100 kg ha(-1).
ABSTRACT Regionally, the municipality of Tangará da Serra, Mato Grosso state, Brazil, has significant agricultural potential due to its latitudinal and orographic conditions. The variability of meteorological elements, especially rainfall, has direct impacts on the socio-environmental, economic and agricultural spheres, so assessing the intensity and trends of this variability is essential to rationalize the use of water resources, quantify impacts and for decision-making and planning to minimize possible negative impacts. In this context, the objective was to analyze the variability of precipitation and apply the Standardized Precipitation Index (SPI) to quantify drought severity. Precipitation data made available by the National Institute of Meteorology and the National Water and Sanitation Agency (ANA) between 1970 and 2023 were used. These data were analyzed for monthly and annual distribution and subjected to analysis of the probabilistic Gamma distribution model and SPI index. In general, in 47.1% of the years (25 years), the annual average precipitation was higher than the historical average (1,774.4 mm). Between 2000 and 2023, only 15% of the years exceeded the historical average precipitation. Several years with prolonged dry periods indicated by the SPI were observed in the analyzed period, with evidence of accentuation from the last 20 years; to better analyze drought events and relate their influence on agriculture, time scales of 3 and 12 months were considered.
A água é o principal elemento para manutenção da vida no planeta, alterações no ciclo hidrológico, assim como o mal gerenciamento das bacias hidrográficas podem condicionar diferentes cenários quanto a disponibilidade dos recursos hídricos. Dito isso, este trabalho tem como objetivo, delimitar a Bacia Hidrográfica do Rio Sepotuba, realizar a caracterização morfométrica da bacia e avaliar as mudanças no uso e ocupação do solo utilizando a coleção 8 do MapBiomas. A caracterização da bacia hidrográfica foi realizada a partir do Modelo Digital de Elevação (MDE), extraído do Shutter Radar Terrain Mission (SRTM), utilizando técnicas de geoprocessamento e Sistemas de Informação Geográficas (SIG). Para avaliação das mudanças do uso e ocupação do solo, as imagens foram adquiridas via Google Earth Engine (GEE), referentes a coleção 8 do MapBiomas, para os anos de 1987 a 2022. Todas as análises foram realizadas nos softwares QGIS 3.18.0 – Zurich e software R. A bacia hidrográfica do Rio Sepotuba (BHRS) tem uma área total de 9853,9 km², com um perímetro de 1298,8 km. A amplitude altimétrica é de 620 m. A bacia é classificada como alongada e sem propensão a enchentes, segundos os parâmetros pelo Fator de Forma de 0,23, Índice de Circularidade 0,07, Fator de Forma de I-Pai-Wu (F) 1,83 e Coeficiente de Compacidade 3,66. A BHRS é condicionada por mudanças pontuais na formação florestal para atividades agropecuárias, além disso, outras atividades ganharam espaço dentro dos limites da bacia, caracterizando assim, alterações nas condições naturais do ambiente. Dentro das características de relevo, a BHRS apresentou pouca declividade dentro dos seus limites geográficos.
Natural flowering in pineapple crops can cause significant economic losses to growers, resulting in uneven fruiting, which hinders phytosanitary operations and the scaling of fruit harvest. The objective of this work was to evaluate the tolerance of eight pineapple cultivars to natural flowering induction in Tangara da Serra, Mato Grosso, Brazil. The cultivars BRS-Ajuba, BRS-Imperial, BRS-Vitoria, Gigante-de-Tarauaca, IAC-Fantastico, Jupi, Perola, and Smooth-Cayenne were evaluated. Planting was carried out in May of 2018, in a randomized block design, with five replications and 20 plants per plot. Plant height, D-leaf length, and percentage of induced plants were evaluated. The surveying period of plants naturally induced was between May and September 2019. In this period, the plants were between 12 and 16 months of age, with adequate D-leaf lengths and plant heights for the occurrence of flowering induction. There were days with night-time temperatures below 15 °C; the lowest photoperiod was in June. The cultivars Smooth-Cayenne, BRS-Imperial, and IAC-Fantastico were tolerant to the natural induction, which resulted in uneven fruiting, causing losses to growers.
Drought is the primary event driven by climate variability, and these episodes are increasing in frequency, intensity, and duration in Brazil. This study aims to assess the annual and monthly distribution, as well as trends of increases or decreases in precipitation, and to identify meteorological and agricultural drought events for municipalities in the western region of Mato Grosso: Campo Novo do Parecis, Campos de J & uacute;lio, Comodoro, and Sapezal. Data were acquired via Google Earth Engine (GEE), utilizing ERA5-Land reanalysis. To assess droughts, the Standardized Precipitation-Evapotranspiration Index (SPEI) was applied, and the Man-Kendall non-parametric test was used for trend analysis. All four municipalities experience two well-defined seasons, wet and dry, with similar annual precipitation patterns. Comodoro, located in the Amazon biome, recorded the highest annual precipitation averages, while the other three municipalities lie within the Cerrado biome. A decrease in annual precipitation has been observed across the region over recent decades. In the early 21st century, dry periods became more pronounced, with the Man-Kendall Z statistic indicating a significant reduction in precipitation in May, July, August, September, and October. The main drought events occurred in 2015-2016 and 2019-2020 across these regions.
With the expansion of wheat cultivation into areas with low natural fertility such as the Brazilian Cerrado, studies aimed at determining the appropriate amounts of nutrients supplied in fertilization are crucial. In this context, the objective was to evaluate the effects of applying doses of nitrogen combined with doses of potassium in the fertilization of irrigated wheat cultivar BRS 254 grown in a Cerrado environment. The experiment was conducted in the experimental area of the Federal University of Rondonópolis, Brazil, in randomized blocks with a 5x5 split factorial design with four replications. The treatments were five doses of nitrogen (0, 70, 140, 210 and 280 kg ha-1) and five doses of potassium (0, 50, 100, 150 and 200 kg ha-1). For grain yield, the application of 168 kg N ha-1 and 200 kg K ha-1 provided maximum grain yield (2,828 kg ha-1). Nitrogen fertilization does not benefit the technological quality aspects of wheat and the use of 200 kg K ha-1 provides the best results. Nitrogen is the nutrient that most limits the development of the BRS 254 wheat cultivar.
A seca é o principal evento causado pela variabilidade climática, esses episódios aumentam em frequência, intensidade e duração no Brasil. O objetivo desse estudo é avaliar a distribuição anual e mensal da precipitação e tendências de acréscimos ou decréscimos e identificar eventos de secas meteorológicas e agrícolas para os municípios da região Oeste de Mato Grosso: Campo Novo do Parecis, Campos de Júlio, Comodoro e Sapezal. Os dados foram adquiridos via Google Earth Engine (GEE), e correspondem a reanálises ERA5-Land. Para avaliação das secas foi utilizado o Índice Padronizado de Precipitação-Evapotranspiração (SPEI). Para análise de tendência foi aplicado o teste não paramétrico de Man-Kendall. Nos quatro municípios há duas estações bem definidas, seca e chuvosa, com regime anual de precipitação semelhantes. A maior média anual de precipitação foi em Comodoro, bioma Amazônico, sendo os outros três do bioma Cerrado. É observada uma redução da precipitação anual nas últimas décadas em toda a região. No início do século XXI, houve maior acentuação de períodos secos, conforme a estatística Z do teste de Man-Kendall ocorreu redução significa da precipitação em maio, julho, agosto setembro e outubro. Os principais eventos de secas foram em 2015 a 2016 e 2019 a 2020 para as regiões.
Objetivou-se analisar como as condições meteorológicas (precipitação, temperatura, amplitude térmica e umidade relativa do ar) estão relacionadas com as internações por doenças cardiovasculares no município de Tangará da Serra -MT. Os dados meteorológicos, total acumulado mensal da precipitação e média mensal da temperatura do ar, umidade relativa do ar e amplitude térmica foram coletados no Site do Instituto Nacional de Meteorologia. O número de internações/mês por doenças cardiovasculares para todas as faixas etárias e para a faixa etária de 60 anos, no site do Departamento de Informática do Sistema Único de Saúde. Foi considerado o período de 2008 a 2018 para coleta dos dados. Foi utilizado correlação de Pearson (r). Verificou-se entre 2008 e 2018 um total de 3.764 internações por doenças cardiovasculares, destes, 2.167 entre idosos. Correlações significativas entre internações por doenças cardiovasculares e os elementos meteorológicos foram observadas em 2008, 2012 e 2015 incluindo todas as faixas etárias, com coeficientes entre (r=-0,65) e (r=0,73), de modo que as variáveis precipitação, temperatura (média e máxima) são as que mais estão associadas ao número de internações. Com os idosos, encontrou-se associações nos anos de 2008, 2009, 2012 e 2015 com a amplitude térmica, umidade relativa do ar mínima e média, temperatura máxima e média e precipitação, com coeficientes entre (r=-0,64) e (r=0,64). Os resultados contribuem para outras pesquisas e para saúde pública no sentido de estabelecer estratégias para promoção e prevenção das doenças cardiovasculares.
TEMPERATURA E UMIDADE DO SOLO EM SISTEMAS DE MILHO CONSORCIADO E EM MONOCULTIVO COM E SEM IRRIGAÇÃO JOÃO DANILO BARBIERI1; PAULO SERGIO LOURENÇO DE FREITAS2; RIVANILDO DALLACORT3; DIEGO FERNANDO DANIEL4; ROBERTO REZENDE2 E WILLIAM FENNER3 1Departamento de Agronomia, UNEMAT, BR - MT-358, Km 7 - Jardim Aeroporto, 78300-000, Tangará da Serra - MT, Brasil. jd.barbieri@hotmail.com 2Programa de Pós-graduação em Agronomia, UEM, Bloco J45 - Av. Colombo, 5790 - 2° Piso - Zona 7, 87020-900, Maringá - PR, Brasil. pslfreitas@uem.br; rrezende@uem.br 3Programa de Pós-graduação em Ambiente e Sistemas de Produção Agrícola, UNEMAT, BR - MT-358, Km 7 - Jardim Aeroporto, 78300-000, Tangará da Serra - MT, Brasil. rivanildo@unemat.br; fennerwilliam@gmail.com 4Programa de Pós-graduação em Agronomia, UTFPR, Via do Conhecimento, Km 1, 85503-390, Pato Branco - PR, Brasil. diegodaniel.agro@gmail.com 1 RESUMO Cultivos consorciados visam à maximização sustentável do uso do solo e água, e têm-se tornado uma alternativa para regiões com períodos chuvosos relativamente curtos e temperaturas elevadas. O objetivo foi verificar a dinâmica e a manutenção da umidade do solo, em função das oscilações da temperatura do solo em sistemas de milho consorciado com e sem irrigação. O delineamento experimental foi composto por doze tratamentos, sendo: milho, braquiária e crotalária em monocultivo, consórcio entre milho e braquiária, consórcio entre milho e crotalária, e sem cobertura do solo, em dois sistemas (seis tratamentos irrigados e seis sem irrigação), com quatro repetições. Avaliou-se a temperatura do solo nas profundidades de 10, 20, 30 e 40 cm e umidade do solo na camada entre 0-30 cm. Foram avaliados os componentes de produção do milho ao final do ciclo. O cultivo do milho em consórcio com a crotalária ou braquiária, proporcionou redução da temperatura média do solo em 17,4 e 17,6%, respectivamente. O consórcio reduziu a amplitude térmica do solo quando comparado com o milho em monocultivo. A umidade do solo apresentou menores valores nas fases de desenvolvimento, intermediária e final para os cultivos de milho consorciado. O cultivo do milho em consórcio irrigado não apresentou diferença significativa na produtividade em relação ao monocultivo. Palavras-chave: braquiária, consórcio, crotalária, reflectometria no domínio do tempo, Zea mays L. BARBIERI, J. D.; FREITAS, P. S. L. DE; DALLACORT, R.; DANIEL, D. F.; REZENDE, R.; FENNER, W. TEMPERATURE AND SOIL MOISTURE IN MAIZE CULTIVATE IN SINGLE AND INTERCROPPING SYSTEMS WITH AND WITHOUT IRRIGATION 2 ABSTRACT Intercropping aims at sustainable maximization of soil and water use, and has become an alternative for regions with relatively short rainy periods and high temperatures. The aim was to verify the dynamics and maintenance of soil moisture as a function of soil temperature oscillations in intercropped corn systems with and without irrigation. The experimental design was composed of twelve treatments: corn, brachiaria and crotalaria in monoculture, intercropping between corn and brachiaria, intercropping between corn and crotalaria, and uncovered soil, in two systems (six irrigated treatments and six without irrigation), with four replications. Soil temperature at depths of 10, 20, 30, and 40 cm and soil moisture in the 0–30 cm layer was evaluated. The production components of corn at the end of the cycle were evaluated. Corn intercropped with crotalaria or brachiaria provided a 17.4 and 17.6% reduction in average soil temperature, respectively. Intercropping reduced the temperature range of the soil compared to corn in monocrop. Soil moisture showed lower values at the development, intermediate, and final stages for the intercropped corn crops. Corn under irrigated intercropping showed no significant difference in yield compared with monocropping. Keywords: brachiaria, intercrop, crotalaria, time domain reflectometry, Zea mays L.
Agricultural intensification is often seen as an appropriate approach to meet the growing demand for agricultural products. In regions affected by seasonal or chronic water scarcity, closing the yield gap depends on irrigation. Brazil is the second-largest wheat importer of the world and irrigated wheat has high yield potential in Brazil, especially in tropical and sub-tropical regions of the country. The crop coefficient (Kc) is still a practical and simple way of quantifying crop irrigation requirements. In this paper, we provided Kc values based on a robust experimental dataset across different wheat-producing regions in Brazil. Four experiments were conducted in three sites [season 2017 in Piracicaba, State of São Paulo (Southeast region); season 2012 Maringá, State of Paraná (Southern region); and seasons 2016 and 2017 Rondonópolis, State of Mato Grosso) (Midwest region)] using lysimeters and the Bowen ratio energy balance method for crop evapotranspiration measurements. Our data showed that Kc values varied among the regions analyzed. For the Midwest region, Kc values ranged from 0.88 to 1.36; the Southeastern region from 0.81 to 1.15, and the Southern region from 0.67 to 1.01. Considering values suggested by FAO, those for arid climates should be used in the Midwest region, sub-humid values for the Southeast, and humid values in the Southern. Differently, that was observed for other crops, our database showed wheat Kc values being stable disregarding the ETo range, which might be related to relatively lower ETo during the winter.
The aim was to evaluate the influence of soil covers on the dynamics of soil temperature and moisture, canopy air temperature, and yield of creeping fresh market tomatoes. The experiment was carried out in randomized blocks design, using the tomato cultivar Thaise, with 5 treatments, 4 replications, with different soil covers: a) Uncovered soil (conventional planting); b) Mulching (double-sided plastic film - black and white); c) Sorghum; d) Sudan grass and e) Pearl millet), cultivated in Tangará da Serra, Mato Grosso, Brazil. Soil temperature was monitored at depths of 5, 10, 20, and 30 cm and in the crop canopy, using thermocouple sensors of the type "K". Soil moisture was monitored in the 0 to 30 cm layer, using of time-domain reflectometry (TDR) probes. Soil temperature and moisture were evaluated throughout the cycle and, in the end, the total and commercial yield of tomato crop. Soil covers have a positive influence on soil temperature and moisture in the cultivation of creeping fresh market tomatoes so that soil cover with mulching provides the highest soil temperature in the early stages of development and covers with mulching and pearl millet provide the highest values of soil moisture. The highest total and commercial yield of tomato were in the soil cover with mulching, with 110.71 and 75.93 t ha-1, respectively, presenting ideal ranges of temperature and soil moisture, so that the other treatments do not differ from each other, with the average total yield of 91.45 t ha-1.
The aim of this study was to test two models and two sizes of microlysimeters to determine soil water evaporation as a function of the removal of water by drainage at the bottom of the units. The experiment was conducted at the experimental field of the State University of Mato Grosso (UNEMAT) in Tangará da Serra, Mato Grosso, Brazil. Soil water evaporation was determined using microlysimeters constructed from rigid PVC tubes, of which two models and two sizes were tested. The four microlysimeter treatments were: 100 mm diameter without drainage (ML100WD), 100 mm diameter with drainage (ML100D), 150 mm diameter without drainage (ML150WD), and 150 mm diameter with drainage (ML150D). The microlysimeters were fitted to an irrigation blade of 60 mm and compared to applications with four irrigation blade sizes (15, 30, 45, and 60 mm). Water evaporation from the soil was obtained from the mass variation of the microlysimeters, and was then compared to the soil water evaporation determined using weighing lysimeters. The obtained data were analyzed using descriptive statistical techniques, tests of means, and regression analysis. The soil water evaporation values present significant differences between the two microlysimeter sizes (100 and 150 mm diameter) and the two models (with and without water drainage). Soil water evaporation is affected by the water drainage that occurs at the bottom of the microlysimeters. There was no difference in soil water evaporation between irrigation rates within the same microlysimeter size and model. The two models and the two microlysimeter sizes tested can be used for the quantification of soil water evaporation, due to the high determination coefficients observed when compared to the evaporation observed with the weighing lysimeters.
The objective was to compare the evapotranspiration of cotton (Gossypium sp. L.) estimated by the SEBAL model and the FAO-56 method, throughout the phenological cycle of the plant on eight fields located in the upper area of the Rio das Mortes basin, State of Mato Grosso—Brazil. Images from the Landsat 8 satellite were used under the Geographic Information Systems environment through the capabilities of the QGIS 3.6.2 and GRASS 7.6.1 software. The reference evapotranspiration was determined by the FAO Penman–Monteith method implementing the Ref-ET software and data from the Campo Verde meteorological station of INMET—Brazil. The R software was applied to the statistical analyses of correlation and regression. The dataset of the available stages of the cotton phenological cycle shows a strong positive correlation, with approximately 68% of the evapotranspiration variation of the SEBAL model related to the estimates of the FAO-56 method.
Water availability, fertilizer management and crop rotation are fundamental to the sustainability of agriculture and food security. Thus, the objective of this study was the determination of crops coefficients, verification and comparison of methods of estimation and determination of the evapotranspiration of irrigated wheat. The experiment was carried out during two consecutive years, in which BRS 254 varieties were cultivated in 2016 and BRS 394 in the year 2017. The evapotranspiration was estimated and determined using the dual kc methodology, FAO-56, with plants grown in 12 lysimeters filled with soil monoliths, and the loss of water by evaporation measured by weighing small-lysimeters. Evapotranspiration was also determined by the water balance method. The results measured in the lysimeters (standard method) were compared with the data simulated by the dual kc method and determined by method of soil water balance, in order to determine the accuracy and efficiency of the methods used. The coefficients used to determine the efficiency of the methods were the RMSE, the RSR and the confidence index "c". The total evapotranspiration of the crop in both years of cultivation was 360 mm, with mean values of 3.87 mm d-1 for cultivar BRS 254 and 4.10 mm d-1 for cultivar BRS 394. The basal crops coefficients in the emergence, tillering, flowering, maturation and harvest stages were 0.42, 0.78, 0.94, 0.74 and 0.47 for cultivar BRS 254 and 0.28, 0.27, 0.65, 0.98 and 0.66 for cultivar BRS 394. The soil water evaporation coefficients at the respective stages are 0.72, 0.52, 0.39, 0.58 and 0.13 for cultivar BRS 254 and 1.04, 0.96, 0.65, 0.34 and 0.51 for cultivar BRS 394. Ke represents on average about 47% of the evapotranspiration of the irrigated wheat crop. Between methods tested, lysimeter is the best to wheat transpiration followed by FAO method and soil water balance. The use of any methods should consider the objectives and resources availability.
Background. The maize crop is strongly influenced by climatic variables such as precipitation and air temperature, directly influencing its adaptation to a specific location and climate. Objective. To determine the agroclimatic adaptability of the maize crop for different agricultural regions of the Mato Grosso State, Brazil. Methodology. This work was developed at the State University of Mato Grosso (UNEMAT), on the dependences of the Centro Tecnológico de Geoprocessamento e Sensoriamento Remoto (CETEGEO-SR). A study was carried out on the adaptability of maize in the municipalities of Rondonópolis, Cuiabá, Tangará da Serra, Campo Novo do Parecis, Sorriso, and Sinop, in the state of Mato Grosso, Brazil. The climatic variables of precipitation and air temperature, calculated on ten-day periods, were used for each municipality as provided by the Instituto Nacional de Meteorologia (INMET). Based on the climatic requirements of the crop, the adaptability of maize during the year was classified. Results. The recommended sowing of the season maize in the municipalities is between the 30th and 33rd ten-day periods and for off-season maize it is between the 1st to 5th ten-day periods, without damage to the development, productivity, and crop harvest. All municipalities are considered suitable for growing maize with the average air temperature. Regarding precipitation, maize is classified as moderated by excess water for cultivation in the spring and summer periods. Implications. This study provides knowledge and technical recommendations on the use of water in the maize crop, as well as the correct sowing date and cultivation of this crop for the study region. Conclusion. The maize crop is suitable for cultivation in the municipalities studied, with recommended sowing between October to February.
Conflitos e interações agonísticas entre macacos-prego e humanos são comuns em parques urbanos de Goiás e do Distrito Federal, podendo inclusive causar danos físicos.Poucos estudos, no entanto, contêm dados sobre a forma com que as duas espécies interagem diretamente, e quais fatores ambientais podem levar ao escalonamento da agressividade.Neste trabalho, descrevemos as interações entre macacos-prego e humanos no Parque Nacional de Brasília (PNB), e testamos hipóteses sobre como essas interações são influenciadas por diferentes fatores: a sazonalidade de alimentos naturais, quem inicia a interação, o número de macacos e humanos envolvidos, e a posse de alimentos antrópicos ou sacolas por humanos.Registramos, através do método de todas as ocorrências, 234 interações entre as duas espécies em 581 horas de observação.Entre 1 e 7 categorias de agonismo/conflito foram registradas em 112 destas 234 interações, incluindo roubos por parte dos macacos (n=65) ameaças por parte dos macacos (n=29) e de humanos (n=76), e uma mordida de um macaco adulto em uma criança.Registros de conflitos foram mais comuns durante a estação seca, quando a interação foi iniciada pelos macacos, quando as interações envolviam um número menor de humanos,
Objetivou-se analisar as evidências científicas sobre os riscos à saúde e doenças que acometem os agricultores decorrentes das atividades rurais. Trata-se de uma revisão integrativa de literatura realizada na base de dados eletrônicas SciELO e na Biblioteca Virtual em Saúde (BVS) com os seguintes descritores: agricultores, trabalhadores rurais, população rural, exposição ocupacional, exposição ambiental, riscos ocupacionais, doenças dos trabalhadores agrícolas, doenças profissionais e estresse psicológico. Foram incluídos textos completos, do período entre 2010-2020, nos idiomas inglês, português e espanhol. A revisão foi realizada em seis etapas. Foram encontrados 104 artigos, após leitura do título, resumo e palavras-chave 89 artigos foram excluídos, resultando em uma amostra de 15 artigos para análise final. Os resultados foram descritos em cinco categorias temáticas, sendo: riscos à saúde decorrentes do uso e exposição aos agrotóxicos, implicações à saúde decorrentes da fumicultura, implicações na saúde mental decorrentes do trabalho rural, riscos à saúde decorrentes da atividade extrativista e adoecimento do agricultor decorrentes a diferentes exposições no trabalho rural. Os agricultores estão expostos à vários riscos à saúde, decorrentes de diferentes atividades agrícolas, entre eles, os riscos físicos, químicos, biológicos, ergonômicos, organizacionais e à saúde mental. Muitos riscos são minimizados com a utilização de Equipamentos de Proteção Individual, no entanto, é necessário maior sensibilização sobre a importância do uso correto desses equipamentos na prevenção dos agravos.Palavras chave: Agricultores; Trabalhadores Rurais; Exposição Ocupacional; Exposição Ambiental; Doenças Profissionais.
This research aimed to evaluate the amending potential of eucalyptus’s wood ash on soil chemical properties and soil-water potential. The experiment was conducted in a greenhouse at the Federal University of Mato Grosso, campus in Rondonópolis. The experimental design was composed of randomized blocks in a 5x5 factorial scheme, including five soil-water potentials (‒4, ‒8, ‒16, ‒32 and ‒64 kPa), and five wood ash doses (0; 8; 16; 24 and 32 g dm-3). The soil samples were collected from the top layer of an Oxisol under natural Cerrado vegetation. Mung bean (Vigna radiata L.) growth variables (plant height, numbers of leaves, stem diameter, and SPAD index) were analyzed at three different phenological periods. In general, the wood ash doses increased soil pH, eliminated the exchangeable aluminum, and improved soil essential nutrients availability. As a result, mung bean plants responded positively to wood ash, achieving superior results at doses ranging from 24 to 26 g dm-3. The interaction between wood ash doses and soil water potential was not significant. However, drier soil conditions constrained plant growth severely. According to our experimental conditions, plant growth variables achieved higher performance at soil water potential of -4 kPa