Global Potential for a New Subsurface Water Retention Technology

2014 ◽  
pp. 315-324 ◽  
Author(s):  
Alvin Smucker ◽  
Bruno Basso
Keyword(s):  
Water Retention ◽  
Subsurface Water

Crop yield simulation optimization using precision irrigation and subsurface water retention technology

2019 ◽  
Vol 119 ◽  
pp. 433-444 ◽  
Author(s):  
Proteek Chandan Roy ◽  
Andrey Guber ◽  
Mohammad Abouali ◽  
A. Pouyan Nejadhashemi ◽  
Kalyanmoy Deb ◽  
...  
Keyword(s):  
Crop Yield ◽  
Water Retention ◽  
Simulation Optimization ◽  
Subsurface Water ◽  
Crop Yield Simulation ◽  
Precision Irrigation

Effects of Subsurface Water Retention Technology on Crop Coefficient and Crop Evapotranspiration of Eggplant

2018 ◽  
Vol 24 (8) ◽  
pp. 96
Author(s):  
Sabah Anwer Almasraf ◽  
Ahmed Hatif Salim
Keyword(s):  
Water Retention ◽  
Sandy Loam ◽  
Crop Coefficient ◽  
Growing Season ◽  
Control Plot ◽  
Subsurface Water ◽  
Crop Evapotranspiration ◽  
Initial Development ◽  
Loam Soil ◽  
Crop Coefficients

In this paper, the effects of subsurface water retention technology (SWRT) on crop coefficient (kc) and crop evapotranspiration (ETc) of eggplant were investigated in sandy loam soil. For this purpose, two treatments plot (with SWRT and without using SWRT) were adopted during 93 days of cultivation. The study was conducted in open field within Al-Fahamah Township, Baghdad, Iraq during summer growing season 2017. The accumulated ETc of eggplant was 403.3 and 515.2 mm for SWRT treatment and control plot, respectively by reduction percentage 21.7 %. The average values of ETc during the growing season were 4.3 and 5.5 mm/day, respectively. The crop coefficients value during the growing stages for initial, development, mid-season and late season stages was 0.15, 0.41, 0.81 and 0.78 in SWRT treatment plot for the respective stages and for the control plot one 0.2, 0.46, 1.13 and 0.9, respectively.  

Subsurface Water Retention Technology Improves Root Zone Water Storage for Corn Production on Coarse-Textured Soils

2015 ◽  
Vol 14 (7) ◽  
pp. vzj2014.11.0166 ◽  
Author(s):  
Andrey K Guber ◽  
Alvin J. M. Smucker ◽  
Samrawi Berhanu ◽  
James M. L. Miller
Keyword(s):  
Water Retention ◽  
Root Zone ◽  
Water Storage ◽  
Subsurface Water ◽  
Corn Production ◽  
Zone Water

scholarly journals Improving Water Use Efficiency and Water Productivity for Okra Crop by using Subsurface Water Retention Technology

2018 ◽  
Vol 24 (7) ◽  
pp. 64 ◽  
Author(s):  
Sabah Anwer Almasraf ◽  
Ali Hassan Hommadi
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Retention ◽  
Root Zone ◽  
Irrigation System ◽  
Water Productivity ◽  
Research Work ◽  
Subsurface Water ◽  
Trickle Irrigation ◽  
Use Efficiency

Utilizing the modern technologies in agriculture such as subsurface water retention techniques were developed to improve water storage capacities in the root zone depth. Moreover, this technique was maximizing the reduction in irrigation losses and increasing the water use efficiency. In this paper, a polyethylene membrane was installed within the root zone of okra crop through the spring growing season 2017 inside the greenhouse to improve water use efficiency and water productivity of okra crop. The research work was conducted in the field located in the north of Babylon Governorate in Sadat Al Hindiya Township seventy-eight kilometers from Baghdad city. Three treatments plots were used for the comparison using surface trickle irrigation system: Polyethylene sheet (SWRT) was used in plot T1, controlled irrigation in plot T2 and uncontrolled irrigation in plot T3. Irrigation quantities, time of irrigation, soil water contents were measured for all treatments plots. The results indicated that water use efficiency for the three experimental plots, T1, T2, and T3 were: 2.43, 1.94 and 0.98 kg/m3, respectively.  The increasing value in water use efficiency of T1 plot compared with T2 and T3 plots were 25 and 148 %, respectively. Additionally, the water productivity of okra crop for T1, T2, and T3 plots was: 12800.9, 8744.8, and 4736.3 ID/m3, respectively. The increasing value of the water productivity of T1 compared with plots T2 and T3 was 46 and 170 %, respectively. From this study, the benefit of using membrane sheet below the soil surface resulted in an increase in the value of yield, water use efficiency and water productivity. Moreover, saving water and reduced the water losses by deep percolation were resulted.      

scholarly journals Subsurface Water Retention Technology (SWRT) for Water Saving and Growing Tomato in Iraqi Sandy Soils

2018 ◽  
Vol 2ndInt.Conf.AGR (Special Issue) ◽  
pp. 127-134
Author(s):  
Mahdi Ibrahim Aoda Aoda ◽  
◽  
Alaa Salih Ati Ati ◽  
Shatha Salim AL-Rawi AL-Rawi ◽  
◽  
...  
Keyword(s):  
Water Retention ◽  
Sandy Soils ◽  
Water Saving ◽  
Subsurface Water

scholarly journals Subsurface Water Retention a Technology for Increasing the Field Use Efficiency and Water Saving Values of Cucumber Plant

2019 ◽  
Vol 25 (9) ◽  
pp. 54-61
Author(s):  
Fatima Sadoon Mushab ◽  
Sabah Anwer Almasaf
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Crop Yield ◽  
Irrigation Water ◽  
Water Retention ◽  
Root Zone ◽  
Subsurface Water ◽  
Cucumber Plant ◽  
Trickle Irrigation ◽  
Use Efficiency

The technology of subsurface soil water retention (SWRT) uses a polyethylene ‎trough that is fixed under the root zone of the plant. It is a modern technology to increase the values of water ‎use efficiency, plant productivity and saving irrigation water by applying as little irrigation water ‎as possible. This study work aims at improving the crop yield and water use efficiency of a cucumber plant with less applied irrigation water by installing membrane trough below the soil surface. The field experiment was conducted in the Hawr Rajab District of ‎Baghdad Governorate in Winter 2018 for testing various trickle irrigation ‎systems. Two agricultural ‎treatment plots were utilized in a greenhouse for the comparison. Plot T1 has used ‎a subsurface trickle irrigation together with membrane trough.  Plot T2 has used only ‎surface trickle irrigation system without using SWRT. The total area of the plots T1and T2 was 13.2 ‎m2 and 6.66 m2, respectively. The obtained results of the study confirmed that the plot T1 satisfies values greater than plot ‎T2 in terms of crop yield, field water use efficiency and in saving the applied irrigation water. The increase rate of field water use efficiency and crop yield in plot T1 compared with plot T2 was 103 %, ‎and 24 %, respectively. Additionally, the increase rate in saving the applied irrigation water ‎in plot T1 comparing with plot T2 was 64 %. The installation of the membrane trough below the plant’s root zone together with subsurface trickle irrigation system assisted in keeping the water, nutrients, and fertilizers during the root zone profile, improving the field water use efficiency and then the parameter of water productivity. ‎  Subsurface trickle irrigation, subsurface water retention technology, yield, ‎water use efficiency.

scholarly journals Improvement of the Water Use Efficiency and Yield of Eggplant by Using Subsurface Water Retention Technology

2018 ◽  
Vol 24 (3) ◽  
pp. 152
Author(s):  
Sabah Anwer Almasraf ◽  
Ahmed Hatif Salim
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Crop Production ◽  
Water Retention ◽  
Root Zone ◽  
Ground Surface ◽  
Subsurface Water ◽  
Control Treatment ◽  
Use Efficiency ◽  
The Impact

Sustainable crop production in a coarse soil texture is challenging due to high water permeability and low soil water holding capacity. In this paper, subsurface water retention technology (SWRT) through impermeable polyethylene membranes was placed at depth 35 cm below ground surface and within the root zone to evaluate and compare the impact of these membranes and control treatment (without using the membranes) on yield and water use efficiency of eggplant inside the greenhouse. The study was conducted in Al-Fahamah Township, Baghdad, Iraq during spring growing season 2017. Results demonstrated the yield and water use efficiencies were 3.483 kg/m2 and 5.653 kg/m3, respectively for SWRT treatment plot and 3.286 kg/m2 and 3.709 kg/m3, respectively for treatment without using SWRT. The increasing percentages for yield and water use efficiency were 6% and 52%, respectively. Additionally, saving in irrigation water in the SWRT membrane was about 44% of the total applied depth comparing with the control treatment.    

scholarly journals Minireservoirs Could Save Farmers with Sandy Soils

Eos ◽  
2020 ◽  
Vol 101 ◽  
Author(s):  
Kate Wheeling
Keyword(s):  
Water Retention ◽  
Crop Yields ◽  
Sandy Soils ◽  
Sub Saharan Africa ◽  
Subsurface Water ◽  
Arid Landscapes ◽  
Sub Saharan

A recently revived subsurface water retention technology could conserve water and drastically increase crop yields in arid landscapes with sandy soils like sub-Saharan Africa.

scholarly journals Improvement Water Productivity of Eggplant Under Subsurface Water Retention Technology

2019 ◽  
Vol 26 (2) ◽  
pp. 1-5
Author(s):  
Ahmed Hatif Salim ◽  
Sabah Anwer Almasraf
Keyword(s):  
Open Field ◽  
Water Retention ◽  
Root Zone ◽  
Sandy Loam ◽  
Water Productivity ◽  
Soil Surface ◽  
Control Plot ◽  
Subsurface Water ◽  
Growing Seasons ◽  
Membrane Sheet

A study of the evaluation of the water productivity (WP) of eggplant under subsurface water retention technology (SWRT) through membrane sheet installed under the root zone has been conducted in sandy loam soil located in Al-Fahamah Township, Baghdad, during two growing seasons (from January 10th to May 31st, 2017 in a greenhouse and from April 9th to July 10th, 2017 in open field). For this purpose, two treatments plot with membrane sheet and without using membrane sheet were applied for each growing season to determine and compare the effect of water saving membrane on productivity of eggplant. Results showed apparent differences among the water productivities of eggplant in the greenhouse and open field. The WP values of eggplant inside greenhouse for SWRT treatment and control plot were 5640 ID/m3 and 3700 ID/m3, respectively and in open field were 2220 ID/m3 and 1570 ID/m3, respectively. The WP of eggplant for SWRT treatment was more than the control plot inside the greenhouse and in open field by 52 % and 40 %, respectively. The installation of membrane sheet below the soil surface was improved the value of water productivity of eggplant and more saving in applied of irrigation water.

Pathogenesis and management of sodium and water retention in cardiac failure and cirrhosis

2001 ◽  
Vol 21 (2) ◽  
pp. 157-172 ◽  
Author(s):  
Robert W. Schrier ◽  
Andrey K. Gurevich ◽  
Melissa A. Cadnapaphornchai
Keyword(s):  
Cardiac Failure ◽  
Water Retention
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