Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Rubens D Coelho"'
Publikováno v:
Engenharia Agrícola, Vol 30, Iss 2, Pp 279-287 (2010)
Neste trabalho, buscou-se avaliar a suscetibilidade de modelos de tubos gotejadores ao entupimento, quando expostos ao uso de cloreto de potássio (branco e vermelho), aplicados via diferentes qualidades de água. O experimento foi realizado no Labor
Externí odkaz:
https://doaj.org/article/f6a715daae67465baf7a6fabb9013bf9
Autor:
Jéfferson de O. Costa, Rubens D. Coelho, Timóteo H. da S. Barros, Eusímio F. Fraga Júnior, André L. T. Fernandes
Publikováno v:
Engenharia Agrícola, Vol 38, Iss 5, Pp 648-656 (2018)
ABSTRACT The plant water potential and the leaf temperature are physiological responses of the coffee tree that can be used as indicative of the irrigation management of this crop. There is a dependence between the leaf water potential with the poten
Externí odkaz:
https://doaj.org/article/05a526b97daf4c66a56f72f7e281eaea
METHODOLOGY FOR DIMENSIONING OF A CENTER PIVOT IRRIGATION SYSTEM OPERATING WITH DRIPPER TYPE EMITTER
Publikováno v:
Engenharia Agrícola, Vol 37, Iss 4, Pp 828-837 (2017)
ABSTRACT: In Brazil, the conventional center pivot is widely used for irrigation of agricultural crops and its use has grown continuously. However, when improperly managed, it facilitates the development of diseases in all parts of the plant, with a
Externí odkaz:
https://doaj.org/article/21c445783fa7476fae3af63bf14861ca
Autor:
Robson Mauri, Rubens D. Coelho, Eusímio F. Fraga Junior, Fernando Da S. Barbosa, Daniel P. V. Leal
Publikováno v:
Engenharia Agrícola, Vol 37, Iss 2, Pp 268-276 (2017)
ABSTRACT This study aimed to quantify water deficit levels that compromise sugarcane initial growth exposed to different availability soil depths. The experiment was conducted in a greenhouse by using 100-liter capacity asbestos-cement boxes filled w
Externí odkaz:
https://doaj.org/article/c5b5ed12847142adb1bf6a3f98814b33
Autor:
ALEX N. DE ALMEIDA, RUBENS D. COELHO, ASDRÚBAL J. FARÍAS, RODRIGO O. C. MONTEIRO, JÉFFERSON DE O. COSTA
Publikováno v:
Engenharia Agrícola, Vol 36, Iss 5, Pp 902-916 (2016)
ABSTRACT The tariff flags on Brazil came into force in January 2015, applied to all electrical distribution agents of the national interconnected system (SIN) and all final consumers are being charged for this new model. Given this, the cost of elect
Externí odkaz:
https://doaj.org/article/1bebdeb9d5c9481398c49643d606b613
Publikováno v:
Engenharia Agrícola, Vol 35, Iss 3, Pp 419-429 (2015)
Este trabalho foi desenvolvido com o objetivo de determinar, em condições laboratoriais, o coeficiente de descarga (Cd) dos emissores fixos tipo “spray” (Senninger, Nelson e Fabrimar) utilizados em equipamentos pivô central no Brasil. Foram av
Externí odkaz:
https://doaj.org/article/692a3fd0004b475b954fc27d4aa8bdbb
Autor:
Fernando da S. Barbosa, Rubens D. Coelho, Rafael Maschio, Carlos J. G. de S. Lima, Everaldo M. da Silva
Publikováno v:
Engenharia Agrícola, Vol 34, Iss 2, Pp 203-210 (2014)
Soil water availability is the main cause of reduced productivity, and the early development period most sensitive to water deficit. This study aimed to evaluate the drought resistance of the varieties of sugar-cane RB867515 and SP81-3250 during the
Externí odkaz:
https://doaj.org/article/581a82162ab24f4c98b013b11d0916e3
Publikováno v:
Engenharia Agrícola, Vol 25, Iss 3, Pp 722-731 (2005)
Visando a avaliar a cultura do melão rendilhado em função do manejo da irrigação, foi realizado um experimento em casa de vegetação com a cultivar Bônus nº 2, na área experimental do Departamento de Engenharia Rural da Escola Superior de Ag
Externí odkaz:
https://doaj.org/article/3a857349a68c4340a5350d398cf4ee3a
Publikováno v:
Engenharia Agrícola, Vol 24, Iss 1, Pp 226-234 (2004)
Em função do índice de área foliar (IAF) do Capim Tanzânia (Panicum maximum J.) e da lâmina de evaporação do tanque "Classe A" (ECA), foi gerado um modelo multiplicativo para determinar a evapotranspiração máxima (ETm) desse cultivo forrag
Externí odkaz:
https://doaj.org/article/6da6e1bcb2ab484299bb7af3a5f5d57f
Publikováno v:
Engenharia Agrícola, Vol 32, Iss 4, Pp 774-783 (2012)
In this study is presented an economic optimization method to design telescope irrigation laterals (multidiameter) with regular spaced outlets. The proposed analytical hydraulic solution was validated by means of a pipeline composed of three differen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::fed7b80c691c0e4691d51d51ee28c4ad
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400017
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000400017