https://www.socictopen.socict.org/files/original/7f397d6faef0617f2f88d3b7076111f4.pdf 28006c810ade2642ed057ae1d7c9687c Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Desempenho de lisímetro de pesagem hidráulica de baixo custo no semi-árido nordestino Low cost hydraulic weighing lysimeter performance in the semi arid northeast, Brazil Creator An entity primarily responsible for making the resource Francisco X. dos Santos, José J. V. Rodrigues, Abelardo A. de A. Montenegro, Ronaldo F. de Moura Description An account of the resource Medidas diretas de evapotranspiração de referência são importantes na avaliação e na calibração de métodos indiretos. Avaliou-se o desempenho de lisímetro de pesagem hidráulica de baixo custo, visando à determinação direta da evapotranspiração de referência (ETo), em área de assentamento rural no Semi-Árido nordestino. O lisímetro é de concepção simplificada, com travesseiros hidráulicos confeccionados com mangueira flexível de butil e revestida em náilon, interligados a um sistema manométrico com mercúrio e água. O equilíbrio do lisímetro foi estável, sendo o maior erro médio posicional de 3,93%. As calibrações geraram coeficientes de correlação superiores a 0,9993 e resoluções de leituras entre 0,095 e 0,134 mm. As leituras lisimétricas foram comparadas com estimativas da ETo obtidas, utilizando-se dos métodos de Penman-Monteith, Blaney-Criddle-FAO, Jensen-Haise e do Tanque Classe A-FAO. Adicionalmente, avaliou-se o desempenho de um tanque evaporimétrico simplificado, construído a partir de material reciclado, o qual vem sendo utilizado no manejo da irrigação em áreas de agricultura familiar. Todos os métodos analisados apresentaram bom desempenho, com medidas bem correlacionadas aàs do lisímetro, para o período estudado.Direct evapotranspiration measurements are important to the calibration of indirect methods. The performance of a low cost hydraulic weighing lysimeter was evaluated, aiming to estimate the reference evapotranspiration (ETo) in a settlement area in the Semi Arid Brazilian northeast. The lysimeter presents a simplified design, with loading cells of butyl internally covered with nylon, connected to a manometric system with mercury and water. The lysimeter equilibrium was stable, with the largest positional average error of 3.93%. Calibrations produced correlation coefficients higher than 0.9993, and reading resolutions between 0.095 and 0.134 mm. Lysimeter readings were compared to ETo estimate Penman-Monteith, Blaney-Criddle FAO, Jensen-Haise, and Class A methods. Additionally, the performance of a simplified evaporimetric tank was evaluated, built with recycled material, which has been used for irrigation management in communal areas. All the considered methods produced good results, well correlated to the readings from the lysimeter, for the studied period. Date A point or period of time associated with an event in the lifecycle of the resource 2008 Subject The topic of the resource Penman-Monteith, evapotranspiration, evapotranspiração, lisímetro de pesagem, necessidade hídrica, water requirement, weighing lysimeter Identifier An unambiguous reference to the resource within a given context 10.1590/S0100-69162008000100012 Source A related resource from which the described resource is derived Engenharia Agrícola Publisher An entity responsible for making the resource available Sociedade Brasileira de Engenharia Agrícola Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Agriculture (General) Relation A related resource <a href="http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0100-69162008000100012" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S0100-69162008000100012</a>