Results 71 to 80 of about 3,303 (287)

Influence and selection of nitrogen and phosphorus compound fertilizers on emitter clogging using brackish water in drip irrigation systems

open access: yesAgricultural Water Management
Emitter clogging is a major obstacle to the application of brackish water in drip irrigation systems, which can be aggravated with inappropriate fertilizer application.
Yayu Wang   +5 more
doaj   +1 more source

Double optic system for ion engine Patent [PDF]

open access: yes, 1967
Accel and focus electrode design for ion engine with improved ...
Zimmerman, R. L.
core   +1 more source

Effect of vehicular pollution on Duranta repens L. in Jammu City [PDF]

open access: yes, 2011
Experimental potted plants of Duranta repens has been exposed to air pollution at major traffic crossings-Amphalla chowk, Dogra chowk, Bikram chowk, Satwari chowk of Jammu city and also inside University Campus in the department which has been taken as a
Bala, Chand, Raina, Anil K.
core   +2 more sources

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen   +3 more
wiley   +1 more source

Determining clogging threshold of ceramic emitters to promote wolfberry production in Northwest China

open access: yesAgricultural Water Management
Drip irrigation is a worldwide water-saving irrigation technology and benefits crop production. Yet, the emitter clogging is still a crucial problem for application.
Xuanyue Tong   +3 more
doaj   +1 more source

An Investigation of Emitters Clogging Under Magnetic Field and Water Quality

open access: yesمجله آب و خاک, 2016
Introduction: Water scarcity is one of the major problems for crop production. Using drip irrigation as an effective method in the efficient use of water is expanding in arid and semi-arid regions.
A. Kiani   +3 more
doaj   +1 more source

CONCENTRATION OF SINGLE SUPERPHOSPHATE ON CLOGGING OF DRIP EMITTERS

open access: yesIRRIGA, 2018
CONCENTRATION OF SINGLE SUPERPHOSPHATE ON CLOGGING OF DRIP EMITTERS     DAYANE RODRIGUES GONÇALVES1; PEDRO RÓBINSON FERNANDES DE MEDEIROS1; ELTON CARLOS PEREIRA VIEIRA DE ALENCAR TELES1; GABIANE SOUZA DOS SANTOS1; ROBERTO CASTRO NASCIMENTO1 E FRANCISCO MAX FERNANDES DO NASCIMENTO2   1Colegiado de Pós Graduação em ...
Francisco Max Fernandes   +5 more
openaire   +2 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Optimized selection of clean nitrogen fertilizers for high-sediment water pressure-compensating drip irrigation systems based on system failure perspective

open access: yesAgricultural Water Management
High-sediment water pressure-compensating drip irrigation (PCDI) has become a widely adopted technique for perennial crops, such as mountain fruit trees, in response to agricultural irrigation water shortages.
Changjian Ma   +7 more
doaj   +1 more source

STATISTICAL PROCESS CONTROL IN THE ASSESSMENT OF DRIP IRRIGATION USING WASTEWATER [PDF]

open access: yesEngenharia Agrícola, 2018
The aim of this study was to evaluate drip irrigation as a process, by monitoring the average flow applied by the emitter using tools of statistical quality control. Four kinds of drippers were selected, two inline labyrinth type and two online where one
Sisgo R. Acuña Chinchilla   +4 more
doaj   +2 more sources

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