Most of the nitrogen (N) required by a soybean plant is supplied via biological nitrogen fixation (BNF). When BNF is adequately established in the soil, soybean can obtain up to 50 to 75% of its N from the air. This project aims to quantify the response to inoculation for soybean in its second year in a field without previous history of this crop. Due to this objective, a field study was conducted during the 2015 and 2016 growing seasons at Ottawa, KS (East Central experiment field location). The treatments consisted of five different Nmanagement approaches: non-inoculated (NI), inoculated ×1 (I×1), inoculated ×2 (I×2), inoculated ×3 (I×3), and non-inoculated but fertilized with 300 lb N/a (NF) as the main N source. In 2015, yields among treatments did not differ significantly from one another. In 2016, yields ranged from 36 to 59 bushels per acre. Greater yields were recorded when fertilized with 300 lb N/a, while lowest yield was related to the noninoculated scenario. Treatments presented significant yield difference; however, the scenario with 300 lb N/a did not differ from the inoculated ×3; while the inoculated treatments were not different for the yield factor. In summary, further research should be pursued to be more conclusive as to the best management approach for N in soybeans in an area without history of this crop.

Traffic noise is a problem that affects the society. However, they have to establish the triggers values for minimum standards of acoustic comfort to the people. The major factor to generate traffic noise is the tire/pavement interaction for speeds higher than 40 km/h. This work presents some evaluations of noise on the tire/pavement interface for different traffic speeds (40, 60 and 80 km/h), for several types of asphalt wearing courses applied in the State of Sergipe-Brazil (conventional asphalt mix and polymer-modified hot mix asphalt, slurry seal and double bituminous surface treatment). It was observed that the noise growth is proportional to the speed increase. The noise also varies with changing parameters such as voids, surface texture and roughness. It was proposed a prediction model to quantify the noise at the tire/pavement interaction from the speed and surface characteristics of asphalt wearing courses. The designers have now additional tools to indicate alternative pavements to critical urban roads, contributing to increase the society acoustic comfort, knowing as quit pavements.

Nas circunstâncias de escassez hídrica, cresce a adoção de técnicas de uso racional de água, dentre as quais o reúso, que vem sendo utilizado por vários setores usuários desse recurso, inclusive a indústria. Diante desse cenário, este trabalho teve por objetivo principal analisar a viabilidade da implementação do sistema de reúso de água em uma indústria de revestimento cerâmico, localizada no estado de Sergipe, considerando aspectos econômicos, ambientais e sociais. Para isso foram realizadas entrevistas, visitas locais, questionários, ensaios laboratoriais, projeto e orçamento da obra, por meio dos quais foram coletados os dados necessários para o desenvolvimento do trabalho. Concluiu-se que é viável a implantação do sistema de reúso em uma indústria de revestimento cerâmico, pois, apesar de não promover retorno de investimento para a indústria em estudo, possibilita uma alta redução de consumo e tem boa aceitabilidade, contribuindo para o meio ambiente e a atenuação da crise. Palavras-chave: Uso racional. Reúso de água. Indústria.

One of the biggest impacts on the country's water resources is the discharge of raw wastewater into rivers, which can be minimized with wastewater treatment. In this work, both the treatment systems performance used in four Wastewater Treatment Plants (WWTPs), which treat the domestic wastewater of Aracaju, and the compliance with the requirements of the current environmental legislation for the release of effluents were evaluated. To do so, physical-chemical, and bacteriological monitoring bulletins of the WWTPs were evaluated through the period of 1 year and 3 months. The WWTPs almost fully complied with all the conditions set out in the legislation for the parameters analyzed. Data analysis showed, in general, a better quality of the effluent from WWTP Orlando Dantas, with pollutant removal efficiencies very close to those found in the literature. However, the other stations, WWTP ERQ Norte, WWTP ERQ Sul and WWTP ERQ Leste, even fulfilling the legislation almost throughout all the studied period, achieved performance below expectations, due to the type of treatment technology adopted. With the evaluation of the results and the operating and maintenance conditions of the stations, it was concluded that there is a need to allocate resources for investments in a greater frequency of laboratory analysis and in the operation and maintenance of the infrastructure of the WWTPs. Furthermore, continuously training professionals involved in the operation of the systems will increase the performance of wastewater treatment structures. Consequently, there will have the improvement in the quality indices of treated wastewater, reduction of pollution and public health problems.

The adoption of decentralized sewage treatment systems appears as an alternative for regions lacking sanitary infrastructure. Regarding Brazilian municipalities, they presented, in 2020, a sewage collection service rate for the urban population equal to 63.2%. Also, according to data from the National Sanitation Information System, in the municipality of Aracaju, capital of the state of Sergipe, the rate of collection of generated sewage is only 53.5%. Due this reality, investment in individual effluent treatment systems becomes a valuable alternative for areas that lack of sanitary infrastructure. In this work, the performance of domestic sewage treatment systems, used as individual treatment solutions in two multifamily condominiums in the capital of Sergipe, was evaluated. Physical-chemical monitoring of the individual sewage treatment systems was carried out, and the results indicated negative efficiencies in most of the analyzed parameters. As for the requirements of the current environmental legislation for the release of effluents, there was non-compliance with the legislation in almost all the time of observation. The lack of systems operation supervision by public agencies leads to failures that cause degradation of groundwater and surface water. Moreover, there is a lack of commitment to inspections and maintenance of the systems by those responsible for the condominiums. According to the types of solutions adopted, treated sewage with higher quality should be achieved and, thus, effluents with high loads of pollutants would not be released into water bodies.

A seca é um fenômeno natural recorrente em diversas regiões do planeta e provoca sérios impactos sobre o meio ambiente e a população. O histórico da gestão de secas no Brasil revela o caráter emergencial e reativo das medidas comumente adotadas. Contudo, a implementação do Monitor de Secas (MSB) no país evidencia o início da transição para gestão de riscos. Essa ferramenta consiste em um produto de monitoramento baseado em diversos índices e dados observados, através de um processo participativo entre instituições federais e estaduais. Dada a importância da consolidação do Monitor como meio de suporte à decisão para políticas públicas, esta pesquisa buscou avaliar a existência de associação entre as categorias de seca do MSB e dados climáticos para o estado de Sergipe. Foram utilizadas as ferramentas estatísticas do teste de independência do Qui-Quadrado e do coeficiente de correlação  de Cramer. O teste de independência mostrou que há associação entre os mapas do MSB e as precipitações mensais, trimestrais e semestrais; anomalias mensais, trimestrais e semestrais; e o Índice de Vegetação da Diferença Normalizada (NDVI). Contudo, o cálculo do coeficiente de Cramer identificou fraqueza na associação com os dados de precipitação e anomalias, com melhores resultados à medida que o período considerado foi maior. O NDVI foi a variável climática com maior correlação com as categorias do Monitor, refletindo características agrícolas da seca. De modo geral, pode-se afirmar que o Monitor tem representado o estado de Sergipe com baixa eficiência, necessitando de ajustes e melhorias, devido à sua crescente importância como ferramenta de suporte à decisão.

Brand names appearing in this publication are for product identification purposes only. No endorsement is intended, nor is criticism implied of similar products not mentioned. K-State Research and Extension is an equal opportunity provider and employer. Follow this and additional works at: https://newprairiepress.org/kaesrr Part of the Agronomy and Crop Sciences Commons Recommended Citation Recommended Citation Secchi, M. A.; Albuquerque, T. M.; Ortez, O. A.; Carmona, G. I.; Kimball, J.; Adee, E. A.; and Ciampitti, I. A. Abstract AbstractThe relationships between soybean (Glycine max) seed yield and response to nitrogen (N) fertilization have received considerable coverage in scientific literature. This project aims to quantify the response to inoculation for soybean in a field without previous history of this crop (20 years). To address this objective, field studies were conducted during the 2015, 2016, and 2017 growing seasons at the East Central Experiment Field, Ottawa, KS. The treatments consisted of five different N-management approaches: non-inoculated (NI), inoculation at the recommended commercial rate (I1), a double rate of inoculation (I2), a triple rate of inoculation (I3), and non-inoculated but fertilized with 300 lb of N/a (NF). In the 2015 growing season, yields did not statistically differ from one another. In the 2016 growing season, treatment differences were observed and seed yield ranged from 36 to 59 bu/a. In the 2017 growing season, treatments showed significant yield difference, with yields ranging from 23 to 52 bu/a, from the NI to the NF treatment, respectively. Further research should be carried out to understand the impact of the inoculation practice and better understand the best management for N in soybean in newly-planted areas. SummaryThe relationships between soybean (Glycine max) seed yield and response to nitrogen (N) fertilization have received considerable coverage in the scientific literature. This project aims to quantify the response to inoculation for soybean in a field without previous history of this crop (20 years). To address this objective, field studies were conducted during the 2015, 2016, and 2017 growing seasons at the East Central Experiment Field, Ottawa, KS. The treatments consisted of five different N-management approaches: non-inoculated (NI), inoculation at the recommended commercial rate (I1), a double rate of inoculation (I2), a triple rate of inoculation (I3), and non-inoculated but fertilized with 300 lb of N/a (NF). In the 2015 growing season, yields did not statistically differ from one another. In the 2016 growing season, treatment differences were observed and seed yield ranged from 36 to 59 bu/a. In the 2017 growing season, treatments showed significant yield difference, with yields ranging from 23 to 52 bu/a, from the NI to the NF treatment, respectively. Further research should be carried out to understand the impact of the inoculation practice and better understand the best management for N in soybean in newly-planted areas.

Frente à necessidade de uso racional dos recursos hídricos conforme preconizado na Lei 9433/97, principalmente na região nordeste do Brasil, cuja disponibilidade hídrica é pequena devido à climatologia local, às demandas, além do mau uso dos recursos hídricos que são utilizados como meio de diluição de esgotos, como é o caso de muitos rios das bacias do estado de Sergipe, observa-se que a adoção de medidas que gerencie aumento de oferta e gerenciamento de demanda é essencial. Nesta pesquisa buscou-se analisar a eficiência do uso de uma pedra porosa de filtro, à base de cal, para tratamento preliminar de esgotos domésticos que serão direcionados para fins não potáveis, auxiliando assim na redução de poluentes contidos nos esgotos antes de serem lançados in natura. A análise desta eficiência foi realizada através de testes físico-químicos como: DBO5, DQO, turbidez, cor, sólidos gerais e em suspensão, cloretos, salinidade, nitratos, e entre outros relacionados à qualidade da água, baseados na Resolução 357/05 do Conselho Nacional do Meio Ambiente - CONAMA. O tratamento com o filtro de pedra porosa criado apresentou baixo custo, fácil produção e utilização, além de ser bastante eficaz no tratamento preliminar do esgoto.