The use of conflict mediation by the Sergipe River Basin Committee as a tool for implementing decentralised water resource management

Parallel to the growing demand for multiple uses of water, conflicts between its users appear, contributing to the increase in the number of cases submitted to the Judiciary. This study aimed at analyzing the existence of mediation as a method of resolving possible conflicts related to water resources in the Sergipe River Basin. The qualitative approach research was developed based on a bibliographic survey, by means of consultations with books, pertinent legislation, articles in scientific and non-scientific journals and, documental, through the analysis of the minutes of the meetings of the Sergipe River Basin Committee, its Internal Regulations and the Climatological Report that analyses the rainfall variability by regions in Sergipe, from 2000 to 2017. The results revealed that despite moving towards recognizing mediation as a method for resolving conflicts, the Committee faced several difficulties in carrying out decentralized management of water resources, especially with regard to the resolution of water disputes. Possible solutions to some of the problems faced by the Committee can be pointed out, such as training its members in water resource management and conflict management, in addition to making them aware of participating frequently in Committee meetings and also stimulating the participation of the population in these meetings

Influence of irrigation and nitrogen fertilization on the characteristics of seeds of Jatropha

Agronomic information on the cultivation of Jatropha plants (Jatropha curcas L.) in the field is still uncommon in the literature, especially under conditions of water and nutritional stress. Thus, this field study aimed to evaluate the effects of irrigation depths (735; 963; 1,191; 1,418 and 1,646 mm) and nitrogen fertilization (0; 25; 50 and 75 kg ha-1) on the characteristics of seeds of Jatropha. Nitrogen fertilization did not influence the production components of Jatropha. The seeds have an elongated aspect, where the length is always greater than the width and thickness. The highest values of seed thickness obtained in plants under the lowest irrigation depth. Plants under the highest irrigation depth showed the highest values of seed length, total number of seeds per plant and productivity of seeds

Eficiencia del uso del agua en pimiento de la especie Capsicum frutescens L., variedad tabasco

AbstractThe cultivation of peppers in Ceará emerge as a major revenue option and hand occupation of regional work, especially in small and medium production arrangements. However, there is in production Peppers water applications in excess or in deficit, rising costs and/or reducing the productivity of crops. Thus management strategies of irrigation has been identified as key to modify this setting and promote efficient use of this important resource. Therefore, this study aimed to evaluate the efficiency of water use productivity of pepper cv Tabasco. The study was implemented and conducted in a greenhouse at the Federal Institute of Education, Science and Technology of Ceará - Campus Sobral, with the intervening factors five water slides (20, 40, 60, 80 and 100% of crop evapotranspiration - ETc in system located irrigation). Of the results it can be concluded that: the most significant values of US were found on the blade of approximately 60% of ETc; the water requirement of tabasco pepper in greenhouse reduces by about 1/3 of the full need, when compared to growing in natural environment. Eficiencia del uso del agua en pimiento de la especie Capsicum frutescens L., variedad tabascoResumenEl cultivo de pimientos en Ceará despunta como una opción importante de ingresos y ocupación de mano de obra regional, especialmente pequeños y medianos sistemas de producción. Sin embargo, se verifica en las áreas de producción pimientos aplicaciones de agua en exceso o déficit, aumentando los costes y / o reduciendo la productividad de los cultivos. Por lo tanto las estrategias de gestión de riego han sido identificadas como clave para modificar esta configuración y promover el uso eficiente de este importante recurso. Por lo tanto, esta investigación tuvo como objetivo evaluar la eficiencia del uso del agua en la productividad del pimiento cv. Tabasco El estudio se llevó en un invernadero en el Instituto Federal de Educación, Ciencia y Tecnología de Ceará - Campus Sobral, teniendo como factores que intervienen cinco láminas de riego (20, 40, 60, 80 y 100% de la evapotranspiración del cultivo - Etc en sistema de riego localizado). De los resultados se puede concluir que: los valores más altos de EUA se encuentran lámina de aproximadamente el 60% de la ETc; las necesidades de agua de la pimienta tabasco en invernadero se reduce em aproximadamente 1/3 de la necesidad total, en comparación con el crecimiento en el medio natural. O cultivo de pimentas no Ceará desponta como uma importante opção de receita e ocupação de mão de obra regional, especialmente nos pequenos e médios arranjos de produção. Contudo, verifica-se nas áreas de produção de pimentas aplicações de água em excessos ou em déficit, elevando custos e/ou reduzindo a produtividade dos cultivos. Desta forma estratégias de manejo da irrigação tem sido apontada como fundamental para modificar este cenário e promover o uso eficiente deste importante recurso. Sendo assim, objetivou-se nesta pesquisa avaliar a eficiência do uso da água na produtividade da pimenta cv Tabasco. O estudo foi implantado e conduzido numa estufa agrícola do Instituto Federal de Educação, Ciência e Tecnologia do Ceará – Campus Sobral, tendo como fatores intervenientes cinco lâminas de água (20, 40, 60, 80 e 100% da evapotranspiração da cultura – ETc em sistema localizado de irrigação). Dos resultados encontrados pode-se concluir que: valores mais expressivos de EUA foram encontrados na lâmina de aproximadamente 60% da ETc; o requerimento hídrico da pimenta tabasco em ambiente protegido reduz em aproximadamente 1/3 da necessidade plena, quando comparado ao cultivo em ambiente natural

Application of indexes to evaluate the water quality of the Continguiba/Pindoba Irrigated Perimeter in Sergipe, Brazil

Irrigation makes food production viable, but the quality and quantity of water may be compromised as a result of inadequate management, which may lead to an increase in the concentration of nutrients, heavy metals and agrochemicals. This study aimed to characterize and monitor the water quality of the Continguiba/Pindoba Irrigated Perimeter in Sergipe, Brazil. Secondary data from the Water Quality Monitoring Program were used through the reports of monitoring campaigns carried out between 2013 and 2014. The Water Quality Index (WQI) and the Trophic State Index (TSI) were used in the water quality assessment. The results showed that there is an influence of seasonality, where the best indices were obtained in the rainy season, with the WQI characterized as regular to good, and the TSI characterized as oligotrophic. There was interference from the drainage of rice lots in the dry season, contributing to the increase of nutrients. There was no spatial influence for WQI, which may be related to the eclipse effect, which attenuated the negative impact of a certain variable given the aggregation of several variables. The TSI suffered spatial influence, the waters added to agricultural and fish lots were classified as oligotrophic or ultraoligotrophic, already in the drainage were found indexes of super-utrophic state

Validation of the ISAREG model for the irrigation management of the melon crop in the state of Ceará

The research aimed to validate the ISAREG model, introducing it to water management studies in irrigation in the State of Ceará, comparing results of experimental research, with results of simulations, carried out with the use of software, analyzing the following variables: crop evapotranspiration, variation of soil water storage and water flow in the soil. A bibliographic survey was carried out to obtain soil, climate and crop information required by the model to perform the soil water balance. Aiming at the validation of ISAREG, the model was fed with the following data: reference evapotranspiration, precipitation, phenological phases of the crop, effective depth of the root system, water availability factor in the soil, crop coefficient and soil information. Subsequently, the irrigation management option "dates and irrigation depths" was selected, and ISAREG performed the simulation of the soil water balance. The ISAREG demonstrated a detailed soil water balance, being validated in this study, because when its results were compared to the experimental ones, there was similarity in the trends of the variables analyzed, despite the reduced correlation verified regarding the variation of water storage in the soil

Reuse of treated domestic sewage for biquinho pepper cultivation

This study aimed to evaluate the reuse of treated domestic sewage in biquinho pepper (Capsicum chinense L.) cultivation under different irrigation regimes. The experiment was carried out in a greenhouse, in a randomised block design with a 3 x 4 factorial scheme, with four replications. Forty-eight pepper plants were subjected to three treated domestic sewage concentrations (0, 50, and 100%) and four irrigation depths (75, 100, 125, and 150% of the crop evapotranspiration - ETc). Data for ETc estimation were obtained from an automatic meteorological station, which was installed in the greenhouse. The results showed that irrigation depths corresponding to 125 and 150% of the ETc at a concentration of 100% treated domestic sewage resulted in higher plants. Moreover, longer fruits were obtained when plants were subjected to 100% ETc at 100% treated domestic sewage. The studied irrigation depths influenced pepper fruit total weight and yield. No treated domestic sewage concentrations significantly influenced the variables analysed. Treated domestic sewage reuse can constitute an alternative for quality water saving and for chemical fertilisation of biquinho pepper crop. Highlights: The growing of beak pepper with domestic sewage treated can bring benefits in terms of providing nutrients to the crops; Adequate levels of water replacement with domestic sewage treated may promote good crop development. The use of treated domestic sewage can be an alternative to reduce the use of better quality water and chemical fertilization in the growing of beak pepper. Reduction of environmental impact may be possible with the replacement of chemical fertilizer by domestic sewage treated in the growing of beak pepper.This study aimed to evaluate the reuse of treated domestic sewage in biquinho pepper (Capsicum chinense L.) cultivation under different irrigation regimes. The experiment was carried out in a greenhouse, in a randomised block design with a 3 x 4 factorial scheme, with four replications. Forty-eight pepper plants were subjected to three treated domestic sewage concentrations (0, 50, and 100%) and four irrigation depths (75, 100, 125, and 150% of the crop evapotranspiration - ETc). Data for ETc estimation were obtained from an automatic meteorological station, which was installed in the greenhouse. The results showed that irrigation depths corresponding to 125 and 150% of the ETc at a concentration of 100% treated domestic sewage resulted in higher plants. Moreover, longer fruits were obtained when plants were subjected to 100% ETc at 100% treated domestic sewage. The studied irrigation depths influenced pepper fruit total weight and yield. No treated domestic sewage concentrations significantly influenced the variables analysed. Treated domestic sewage reuse can constitute an alternative for quality water saving and for chemical fertilisation of biquinho pepper crop. Highlights: The growing of beak pepper with domestic sewage treated can bring benefits in terms of providing nutrients to the crops; Adequate levels of water replacement with domestic sewage treated may promote good crop development. The use of treated domestic sewage can be an alternative to reduce the use of better quality water and chemical fertilization in the growing of beak pepper. Reduction of environmental impact may be possible with the replacement of chemical fertilizer by domestic sewage treated in the growing of beak pepper

Produção da Cunhã Forrageira sob diferentes níveis de adubação fosfatada: Cunhã Forrage production under different levels of phosphate fertilization

A Cunhã (Clitoria ternatea L.) é uma leguminosa que apresenta elevado teor de proteína e que consegue produção satisfatória, mesmo em condições de semiaridez, em períodos em que a produção animal é baixa, devido à escassez de alimento no semiárido, tanto em quantidade quanto em qualidade nutricional. Diante desse contexto, se propõe com esse trabalho avaliar o efeito de doses de P2O5 sobre a produtividade de matéria natural da Cunhã forrageira. O experimento foi conduzido no Instituto Federal Baiano, campus Serrinha, Bahia. O estudo foi baseado na aplicação de diferentes níveis de adubação fosfatada: (i) 0 Kg ha-1 de P2O5; (ii) 150 Kg ha-1 de P2O5; (iii) 300 Kg ha-1 de P2O5; e (iv) 450 Kg ha-1 de P2O5. Com aplicação de 355 Kg ha-1 de P2O5, a Cunhã apresenta maior resposta em produtividade de matéria natural (49,5 Mg ha-1); e a maior eficiência agronômica ocorre com a aplicação de até 263,5 Kg ha-1 de P2O5

Uso de esgoto doméstico na produção da palma forrageira / Use of domestic sewage in the production of forage palm

Essa pesquisa teve por objetivo avaliar o cultivo da palma forrageira Gigante (Opuntia ficus indica) irrigada com esgoto doméstico tratado, nas condições edafoclimáticas do Território do Sisal, no Semiárido brasileiro. O experimento foi conduzido no Instituto Federal Baiano, campus Serrinha-Ba. A área experimental foi constituída de dez blocos inteiramente casualizados, com três tratamentos: ((i) irrigado com esgoto doméstico tratado; (ii) irrigado com água de chuva; e (iii) sem irrigação (sequeiro). A palma forrageira foi implantada em fileiras duplas com espaçamento 3 x 1 x 0,5m, totalizando 360 plantas na área. O sistema de Irrigação utilizado foi o localizado com gotejadores auto-compensantes e turno de rega fixo, aplicando 0,5 litros de água por planta por semana. Apesar do tempo de avaliação não ser suficiente para determinar a eficiência da irrigação com esgoto doméstico tratado, no cultivo da palma forrageira no Território do Sisal, é possível concluir-se que o aporte de nutrientes no solo advindo do uso da água residuária desperta atenção para a necessidade do monitoramento continuo do solo nessas condições de cultivo

Growth or somatotrophic hormone: new perspectives in isolated GH deficiency after description of the mutation in the GHRH receptor gene in individuals of Itabaianinha county, Brazil

Além de influenciar o crescimento corpóreo, o hormônio do crescimento, ou somatotrófico, desempenha importante papel no metabolismo, composição corporal, perfil lipídico, estado cardiovascular e longevidade. Seu controle é multi-regulado por hormônios, metabólitos e peptídeos hipotalâmicos. Dados sobre a Deficiência Isolada de GH (DIGH) obtidos a partir da descrição da mutação IVS1+1G→A no gene do receptor do hormônio liberador do GH (GHRH-R) em indivíduos da cidade de Itabaianinha, SE, são revisados. São abordadas novas perspectivas sobre o modelo de resistência ao GHRH, a importância do GHRH no controle da secreção de GH, a freqüência das mutações do gene do GHRH-R, a relevância diagnóstica do IGF-I e os achados metabólicos, cardiovasculares e de qualidade de vida nestes indivíduos._________________________________________________________________________________________ ABSTRACT: In addition to stimulating body growth, growth or somatotrophic hormone plays an important role in metabolism, body composition, lipid profile, cardiovascular status and longevity. Its control is multiregulated by hormones, metabolites and hypothalamic peptides. Obtained data of the isolated growth hormone deficiency (IGHD) after the description of the IVS1+1G→A GHRH receptor gene mutation in individuals of Itabaianinha County are reviewed. New perspectives about the growth hormone resistance model, the importance of GHRH in the control of GH secretion, the frequency of GHRH-R gene mutations, the diagnostic relevance of IGF-I and the metabolic, cardiovascular and quality of life findings are approached