Zobrazeno 1 - 10
of 334
pro vyhledávání: '"José A. Frizzone"'
Autor:
Ricardo Gava, Jefferson L. Anselmo, Christopher M. U. Neale, José A. Frizzone, Aguinaldo J. F. Leal
Publikováno v:
Engenharia Agrícola, Vol 37, Iss 3, Pp 441-452 (2017)
ABSTRACT Planting density can influence the competitiveness among plants mainly by water, nutrients and solar radiation, directly affecting yield. The purpose of this study was to evaluate the productivity of different soybean cultivars at different
Externí odkaz:
https://doaj.org/article/74b5caefd3594eae9247402ea4e98cbb
Autor:
Verônica G. M. L. Melo, Ana C. S. Araújo, Antonio P. Camargo, Leonardo L. Melo, José A. Frizzone, Wagner W. A. Bombardelli
Publikováno v:
The Scientific World Journal, Vol 2019 (2019)
Thin-walled drip tapes with continuous labyrinth have been used for irrigation of vegetables and other short-cycle crops, especially due to their low cost. The continuous labyrinths welded into the pipe inner wall affect the head loss along such emit
Externí odkaz:
https://doaj.org/article/9f9b5df3eac047bd8b45dd72c8508f7e
Autor:
Alexsandro C. dos Santos Almeida, Ceres D. G. C. de Almeida, Tarlei A. Botrel, José A. Frizzone
Publikováno v:
Engenharia Agrícola, Vol 36, Iss 1, Pp 36-45 (2016)
ABSTRACT Microsprinkler non-pressure compensating nozzles usually show water flow variation along the lateral line. This study aimed at adapting microtubes into non-compensating system of microsprinklers previous installed in the field, as a self-com
Externí odkaz:
https://doaj.org/article/49c5c54b2d00401b94defb2ac0996de3
Autor:
Rogério Lavanholi, Fabricio C. Oliveira, Antonio P. de Camargo, José A. Frizzone, Bruno Molle, Nassim Ait-Mouheb, Séverine Tomas
Publikováno v:
The Scientific World Journal, Vol 2018 (2018)
Emitter clogging is a major problem in microirrigation systems, which may result from the isolated or combined effects of physical, chemical, and biological agents. Clogging caused by suspended solid particles is the most common plugging form of emit
Externí odkaz:
https://doaj.org/article/0c4889abda3145098a31e89b7973c53c
Autor:
Osvaldo Rettore Neto, Tarlei A. Botrel, José A. Frizzone, Marinaldo F. Pinto, Antônio P. Camargo
Publikováno v:
Engenharia Agrícola, Vol 33, Iss 6, Pp 1312-1321 (2013)
A indústria de plásticos e derivados, com o auxílio da engenharia, tem aprimorado a qualidade do material destinado à fabricação de tubos, principalmente os de polietileno. A elasticidade desses tubos permite que ocorra aumento do diâmetro int
Externí odkaz:
https://doaj.org/article/07eff22d087f4f3cb335429ee4d9a5f5
Autor:
Kelly N. Leite, Raimundo N. T. Costa, João R. Crisótomo, José A. Frizzone, Albanise B. Marinho
Publikováno v:
Engenharia Agrícola, Vol 33, Iss 4, Pp 739-747 (2013)
Water and fertilizer among the production factors are the elements that most restrict the production of cashew. The precise amount of these factors is essential to the success of the crop yield. This research aimed to determine the best factor-produc
Externí odkaz:
https://doaj.org/article/8de82370931043c09c1bef6aac08c0d6
Publikováno v:
Engenharia Agrícola, Vol 33, Iss 1, Pp 89-98 (2013)
This study was conducted at the Agronomic Institute of Paraná (IAPAR) in Londrina, State of Paraná (PR), Brazil (latitude 23º18'S, longitude 51º09'W and average altitude of 585 m). The local climate, according to the classification of Köeppen, i
Externí odkaz:
https://doaj.org/article/f2b1fd6ec3904c81a116b866a8f0013d
Publikováno v:
Engenharia Agrícola, Vol 30, Iss 3, Pp 435-446 (2010)
Este trabalho foi desenvolvido para analisar as perdas de carga localizadas em gotejadores coaxiais integrados em tubos de polietileno. A perda de carga para diferentes vazões foi determinada em quatro modelos de tubos gotejadores, com sete repetiç
Externí odkaz:
https://doaj.org/article/98cdc7097c6b4ed686515864114347e7
Publikováno v:
Engenharia Agrícola, Vol 30, Iss 3, Pp 447-458 (2010)
O experimento foi conduzido no Centro Técnico de Irrigação (CTI), Universidade Estadual de Maringá (UEM), tendo como objetivo avaliar os efeitos de diferentes regimes hídricos (irrigado e não irrigado) e fertirrigação, combinados com diferent
Externí odkaz:
https://doaj.org/article/0b83bacc1d6340288520d0a4ead2c235
Publikováno v:
Engenharia Agrícola, Vol 29, Iss 1, Pp 28-39 (2009)
Este trabalho apresenta os resultados de experimento conduzido para avaliar as perdas de carga localizadas em gotejados não coaxiais integrados a tubos de polietileno. As perdas de carga para diferentes vazões foram determinadas em quatro modelos d
Externí odkaz:
https://doaj.org/article/f5279cc0f060469996475a8ec519e712