Results 71 to 80 of about 15,471 (289)

Efeito da qualidade da água na perda de carga em filtros utilizados na irrigação localizada Effect of water quality on head loss in filters utilized in trickle irrigation

Revista Brasileira de Engenharia Agrícola e Ambiental, 2005
O presente trabalho teve como objetivo apresentar a investigação experimental de uma fonte hídrica superficial utilizada em um sistema de irrigação por gotejamento e sua influência na evolução da perda de carga de dois filtros, um de disco e outro de ...
Túlio A. P. Ribeiro, Rogério P. da S. Airoldi, José E. S. Paterniani, Marcelo J. M. da Silva   +3 more
doaj   +1 more source

Private-public partnership and technological imperatives for irrigation development [PDF]

Irrigated farmingDrip irrigationSprinkler irrigationWater ...
Mengiste, A.
core  

Water management assessment in a historic garden: the case study of the Real Alcazar (Seville, Spain) [PDF]

, 2018
Irrigation plays a very important role in a Mediterranean garden. In spite of this, there are not many studies assessing irrigation water management of landscapes.
Egea Cegarra, Gregorio, Fernández Cañero, Rafael, Pérez Urrestarazu, Luis, Roldán Olmo, Fuensanta, Ruiz Alcalá, Cecilia   +4 more
core   +1 more source

REPRESENTING POLLUTION AT THE AGRARIAN–URBAN FRONTIER: Participatory Documentary Film‐Making in Bar Elias, Lebanon

International Journal of Urban and Regional Research, EarlyView.
Abstract The Beqaa Valley in Lebanon has become increasingly polluted, and residents are attributing illness to improper waste disposal and dumping. This article explores local epistemologies of pollution’s causes and effects in three films, which were researched and produced by local residents of Bar Elias, a small town in the Beqaa, which has rapidly
Hannah Sender, Hanna Baumann, Joana Dabaj   +2 more
wiley   +1 more source

CARACTERIZAÇÃO DA PERFORMANCE HIDRÁULICA DE DOIS EMISSORES TIPO MICROASPERSOR

Revista Brasileira de Engenharia Agrícola e Ambiental
RESUMO Avaliaram-se as características hidráulicas de dois emissores de irrigação localizada, tipo micoraspersor Carborundum, modelo MSIII, tendo sido analisados o coeficiente de variação de fabricação e a equação característica da relação vazão-pressão.
José de Arimatea de Matos, Carlos Renato Alves Ragoso   +1 more
doaj   +1 more source

A preventive strategy for the control of aphids in sweet pepper using lacewings and micrococcinelid beetles

Insect Science, EarlyView.
Aphids pose a serious risk to horticultural crops. Current biocontrol strategies often fail due to the poor establishment of natural enemies when aphids are scarce. We evaluated the potential of two aphidophagous predators, Micromus variegatus and Scymnus interruptus, to be used as preventive biocontrol agents, released before aphid infestation.
Jesica Pérez‐Rodríguez, Reinier T. Valstar, Ada Leman, Gerben J. Messelink   +3 more
wiley   +1 more source

PERFORMANCE HIDRÁULICA E PERFIL DE DISTRIBUIÇÃO DE ÁGUA DO MICROASPERSOR NAAN 7110, SOB DIFERENTES CONDIÇÕES DE VENTO

Revista Brasileira de Engenharia Agrícola e Ambiental
RESUMO A principal finalidade de ensaios de equipamentos utilizados em sistemas de irrigação localizada consiste na determinação das características hidráulicas e nas análises de seu desempenho.
José Dantas Neto, Mônica Garcia Agra de Medeiros, Carlos Alberto Vieira de Azevedo, Hamilton Medeiros de Azevedo   +3 more
doaj   +1 more source

Evolution of the spherical cavity radius generated around a subsurface emitter [PDF]

, 2010
The emitter discharge in subsurface drip irrigation can be affected by soil properties. A positive pressure develops at the emitter outlet where a spherical cavity is assumed to form.
Gil Rodríguez, María, Juana Sirgado, Luis, Rodríguez Sinobas, Leonor, Sánchez Calvo, Raúl   +3 more
core   +1 more source

Enhancing the vase life of cut roses through spectral optimisation during greenhouse cultivation

Annals of Applied Biology, EarlyView.
Here, we examined three red‐to‐blue (R:B) light emitting diode (LED) ratios (90:10, 80:20 and 70:30) in two cut rose cultivars. All treatments enhanced photosynthesis, with 90:10 showing the strongest effects—raising chlorophyll, carotenoids, anthocyanins and carbohydrate levels, and extending vase life by up to 30%.
Maryam Davarzani, Sasan Aliniaeifard, Mahboobeh Zare Mehrjerdi, Mahmoud Reza Roozban, Seyyed Arash Saeedi, Dimitrios Fanourakis, Nazim S. Gruda   +6 more
wiley   +1 more source

Modern irrigation development: hybrid MCDM-GIS framework for identifying potential areas and feasibility assessment (theory and application in a semi-arid region)

Applied Water Science
Due to limited water and soil resources in arid and semi-arid regions, improving irrigation efficiency and both physical and economic water productivity is essential.
Mahmood Akbari, Mehdi Mardian, Hamidreza Shamsikhani, Majid Naeimi, Alireza Ghaemmaghami, Firoozeh Mazaheri, Mahnaz Khazanchin, Ali Salehi Marzijarani, Ahmadreza Gholami, Leyla Amiri, Mehrad Ebrahimi, Atena goleh Senejani, Kazem Karchani, Masood Amereii, Ramtin Alikhani, Mehdi Darestani Farahani, Ali Eskandari, Saeed Ramezani, Saeed Farahani, Mahdi Gheysari   +19 more
doaj   +1 more source