Results 21 to 30 of about 636 (254)

A Hydraulic Study of Trickle Irrigation.(Dept.C) [PDF]

open access: yesMEJ. Mansoura Engineering Journal, 2021
Polyethylene pipes are widely used in the trickle irrigation system. The main objective of this research work is to determine friction factors for this type of pipes.  A field study was carried out on two trickle irrigation laterals each of which was about 240 m in length.
Abdel Razik Zidan, El-Sir El-Amin
openaire   +1 more source

Investigation of Hydraulic Indexes of Production Quality of Trickle Tube with in Line Emitter used in Iran [PDF]

open access: yesمهندسی منابع آب, 2019
The emitters are the most important part of drip irrigation systems, so the evaluation of the hydraulic performance of drippers is very important to have an efficient irrigation system.
sara abdi, Eisa Maroufpoor
doaj  

Effluent Reuse by Trickle Irrigation

open access: yesWater Science and Technology, 1991
Trickle systems can be implemented for domestic effluent disposal and reuse for irrigation of edible crops. This hypothesis was examined in field experiments conducted recently with the treated domestic wastewater of the city of Beer-Sheva, Israel. The results indicate that minimal soil surface and plant contamination was detected under subsurface ...
Yosi Manor   +3 more
openaire   +1 more source

Fontes de fósforo aplicadas na cultura do melão via água de irrigação Souces of phosphorus applied through fertigation muskmelon

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2000
Este estudo teve por objetivo avaliar o efeito de fontes de fósforo aplicadas via água de irrigação e, de modo convencional, na cultura do melão (Cucumis melo L.), híbrido AF-682, em um Latossolo Vermelho-Amarelo.
Luiza Teixeira de Lima Brito   +3 more
doaj   +1 more source

EVAPOTRANSPIRATION AND IRRIGATION WATER REQUIREMENTS EVALUATION OF CHINAROK AREA USING ASCE PENMAN- MONTEITH METHOD

open access: yesThe Iraqi Journal of Agricultural science, 2020
The Koya Directorate of Irrigation (KDI) has a plan to develop the agriculture and launch new agricultural projects in Chinarok area in particular for forestry and orchards plantation.
M. O. Al-Kazragy
doaj   +1 more source

WATER REQUIREMENTS FOR IRRIGATED SUGARCANE UNDER TRICKLE IRRIGATION [PDF]

open access: yesMisr Journal of Agricultural Engineering, 2008
Effect of irrigation water requirements and row spacing of surface and subsurface trickle irrigated sugarcane on soil moisture distribution, sugarcane yield, sugar percentage and water use efficiency were studied. There are three different lateral distance between plants (L) used in the experiment; 0.75 m, 1.00 m and 1.25 m under four irrigation ...
M. Hanafy, A. Mahrous, M. Z. El Garib
openaire   +1 more source

MODELING SOIL WATER REDISTRIBUTION UNDER SURFACE DRIP IRRIGATION [PDF]

open access: yesEngenharia Agrícola, 2019
The main objective of this study was to develop a numerical model to simulate water distribution, and the shape of the wetted soil volume, resulting from a point source irrigation at the ground surface (dripper), given soil hydraulic properties and ...
Francisco D. D. Arraes   +2 more
doaj   +1 more source

IRRIGATION REQUIREMENTS OF SWEET PEPPER (Capsicum annuum L.) GROWN IN PLASTIC GREENHOUSES UNDER EL-ARISH CONDITIONS: III:VEGETATIVE GROWTH, YIELD AND ITS COMPONENTS AND WATER USE EFFICIENCY [PDF]

open access: yesJournal of Plant Production, 2002
This study was carried out at the Experimental Farm of the Faculty of Environmental Agriculture Sciences in EI-Arish. Suez Canal University. during the early summer seasons of 1999-2000 and 2000-2001. Sweet pepper (Capsicum annuum L.) plants cv. Sonar
M. Hassan   +3 more
doaj   +1 more source

Trickle irrigation systems affect spatial distribution of roots of banana crop

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
Trickle irrigation has been largely used for banana in Brazil, mainly due to the increase in water and fertilizer use efficiency. These irrigation systems have different options concerning number, type and flow rate of emitters as well as for hydraulics,
Edvaldo B. Santana Junior   +5 more
doaj   +1 more source

Backpressure effects on the flow-pressure relation of driplines [PDF]

open access: yesEngenharia Agrícola, 2016
For drip irrigation design and management, it is necessary to know the relation between flow and pressure acting on emitters. In the case of subsurface drip irrigation, the backpressure phenomenon may change the hydraulic characteristics of emitters ...
Michael S Thebaldi   +3 more
doaj   +1 more source

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