In-Field Evaluation of Pressure-Compensated Subsurface Drip Irrigation

2009 ◽  
Author(s):  
Tyrel L Harbuck ◽  
John P Fulton ◽  
Mark P Dougherty ◽  
Steve T Taylor ◽  
Larry P Curtis ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Field Evaluation ◽  
Subsurface Drip Irrigation ◽  
Subsurface Drip

scholarly journals Using the step by step models to evaluate field application uniformity of subsurface drip irrigation systems

2019 ◽  
Vol 6 (12) ◽  
pp. 233-241
Author(s):  
Hiba Ghazouani ◽  
Basma Latrech ◽  
Mguidich Belhaj Amel ◽  
Boutheina M. Douh ◽  
Ghazouani Issam ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Distribution ◽  
Soil Surface ◽  
Field Evaluation ◽  
Field Application ◽  
Subsurface Drip Irrigation ◽  
Irrigation Systems ◽  
Water Losses ◽  
Uniformity Coefficient ◽  
Subsurface Drip

Compared to other irrigation methods, drip irrigation systems (DI) are considered one of the most efficient form of irrigation. Subsurface drip irrigation allowed reducing water losses by evaporation, runoff, and deep percolation comparing to other irrigation systems supplying water on soil surface. Field evaluation of Uniformity of water applications and its stability, however, are still a matter of controversy and deserve more investigation, since the collection of water discharged needs to excavate the soil around the emitters. Experiments carried out at the Department of Rural and Agrifood Engineering of Polytechnic University of Valencia allowed describing a methodology to assess the performance of drip irrigation through hydraulic characterizations and an emission uniformity coefficient, using the step by step models. Calculations evidenced that operating pressures on emitters ranged between 127.6 kPa and 131.7 kPa, whereas the corresponding flow rates varied from 4.00 L/h and 4.07 L/h, with an average value of 4.02 L/h. Variability in the emitters’ flow rate resulted very limited due to the short length of the lateral (25.6 m). However, more attention should be paid to this for a longer field dimensions. Consequently, the value of emission uniformity coefficient was equal to 96.3%, testifying the uniform water distribution within the sub-plot.

Subsurface Drip Irrigation and Fertigation of Broccoli

2002 ◽  
Vol 66 (1) ◽  
pp. 178 ◽  
Author(s):  
Thomas L. Thompson ◽  
Thomas A. Doerge ◽  
Ronald E. Godin
Keyword(s):  
Drip Irrigation ◽  
Subsurface Drip Irrigation ◽  
Subsurface Drip

Behaviour of the fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation

2000 ◽  
Vol 42 (1-2) ◽  
pp. 75-79 ◽  
Author(s):  
C. Campos ◽  
G. Oron ◽  
M. Salgot ◽  
L. Gillerman
Keyword(s):  
Organic Matter ◽  
Drip Irrigation ◽  
Organic Matter Content ◽  
Fecal Pollution ◽  
Fecal Coliforms ◽  
Subsurface Drip Irrigation ◽  
Treated Wastewater ◽  
Reclaimed Wastewater ◽  
Pollution Indicators ◽  
Subsurface Drip

A critical objective for any wastewater reuse programme is to minimise health and environmental hazard. When applying wastewater to soil–plant systems, it is to be noted that the passage of water through the soil considerably reduces the number of microorganisms carried by the reclaimed wastewater. Factors that affect survival include number and type of microorganisms, soil organic matter content, temperature, moisture, pH, rainfall, sunlight, protection provided by foliage and antagonism by soil microflora. The purpose of this work was to examine the behaviour of fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation. The experiment was conducted in a vineyard located at a commercial farm near the City of Arad (Israel). Wastewater and soil samples were monitored during the irrigation period and examined for fecal coliforms, somatic and F+ coliphages and helminth eggs. Physico-chemical parameters were controlled in order to determine their relationship with removal of microorganisms. The results showed high reduction of the concentration of microorganisms when wastewater moves through the soil; and a good correlation between the reduction of fecal pollution indicators and moisture content, organic matter concentration and pH. The application of secondary treated domestic wastewater in this specific soil and under these irrigation systems affect the survival of microorganisms, thus reducing the health and environmental risk.

Tomato (Solanum lycopersicum) production under subsurface drip irrigation with two types of drip tape

2019 ◽  
pp. 397-404
Author(s):  
J.V. Prado-Hernández ◽  
F.R. Hernández-Saucedo ◽  
M. Carrillo-García ◽  
J. Pineda-Pineda ◽  
A.H. Gutiérrez-Campos ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Drip Irrigation ◽  
Subsurface Drip Irrigation ◽  
Subsurface Drip

Double-Cropped Soybean and Wheat with Subsurface Drip Irrigation Supplemented by Treated Swine Wastewater

2011 ◽  
Vol 42 (22) ◽  
pp. 2778-2794 ◽  
Author(s):  
P. G. Hunt ◽  
K. C. Stone ◽  
T. A. Matheny ◽  
M. B. Vanotti ◽  
A. A. Szogi ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Subsurface Drip Irrigation ◽  
Swine Wastewater ◽  
Subsurface Drip
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