scholarly journals Assessment of Health Risk Index in Soil and Grain of Wheat Irrigated by Subsurface Drip Irrigation and Treated Wastewater in Semi-Arid Region

2017 ◽  
Vol 20 (78) ◽  
pp. 113-124
Author(s):  
K. Asgari ◽  
S. H. Tabatabaei ◽  
P. Najafi ◽  
SH. Kiani ◽  
◽  
...  
Keyword(s):  
Health Risk ◽  
Drip Irrigation ◽  
Arid Region ◽  
Risk Index ◽  
Subsurface Drip Irrigation ◽  
Treated Wastewater ◽  
Health Risk Index ◽  
Subsurface Drip ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Growth of watermelon under surface and subsurface drip irrigation system in semi-arid region

2020 ◽  
Vol 9 (3) ◽  
pp. 1300-1304
Author(s):  
Mallikarjun Reddy ◽  
Ambrish Ganachari ◽  
Krishna S Maraddi ◽  
AS Police Patil
Keyword(s):  
Drip Irrigation ◽  
Arid Region ◽  
Irrigation System ◽  
Subsurface Drip Irrigation ◽  
Drip Irrigation System ◽  
Subsurface Drip ◽  
Semi Arid Region ◽  
Semi Arid

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.

Effect of New Irrigation Technology on the Physiology and Water Use Efficiency of Potato by Reclaimed Water Irrigation

2013 ◽  
Vol 726-731 ◽  
pp. 3035-3039 ◽  
Author(s):  
Xue Bin Qi ◽  
Zong Dong Huang ◽  
Dong Mei Qiao ◽  
Ping Li ◽  
Zhi Juan Zhao ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
Field Experiments ◽  
Root Zone ◽  
Subsurface Drip Irrigation ◽  
Treated Wastewater ◽  
Root Weight ◽  
Use Efficiency ◽  
Subsurface Drip

Agriculture is a big consumer of fresh water in competition with other sectors of the society. The agricultural sector continues to have a negative impact on the ecological status of the environment. The worlds interest in high quality food is increasing. Field experiments were conducted to investigate the effect of subsurface drip irrigation on physiological responses, yield and water use efficiency, Soil nitrogen, Root weight density of potato in the semi-humid region of middle China using subsurface drip irrigation. The experiment used second-stage treated wastewater with and without addition of chloride, and both subsurface drip and furrow irrigations were investigated. Results indicated that the alternate partial root-zone irrigation is a practicable water-saving strategy for potato. The drip with chlorinated and non-chlorinated water improved water use efficiency by 21.48% and 39.1%, respectively, and 44.1% in the furrow irrigation. Partial root zone drying irrigation stimulates potato root growth and enhances root density. The content of the heavy metal in the potato tubers is no more than the National Food Requirements, and it is consistent with National Food Hygiene Stands.

APRICOT TREE RESPONSE TO DRIP IRRIGATION IN THE SEMI-ARID REGION OF DOBROGEA

2013 ◽  
pp. 395-400
Author(s):  
L. Septar ◽  
M. Trandafirescu ◽  
M. Iancu
Keyword(s):  
Drip Irrigation ◽  
Arid Region ◽  
Semi Arid Region ◽  
Apricot Tree ◽  
Semi Arid

Comparing evapotranspiration and yield performance of maize under sprinkler, superficial and subsurface drip irrigation in a semi-arid environment

2019 ◽  
Vol 38 (1) ◽  
pp. 105-115 ◽  
Author(s):  
F. Valentín ◽  
P. A. Nortes ◽  
A. Domínguez ◽  
J. M. Sánchez ◽  
D. S. Intrigliolo ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Arid Environment ◽  
Subsurface Drip Irrigation ◽  
Yield Performance ◽  
Subsurface Drip ◽  
Semi Arid

Role of irrigation and wastewater reuse: comparison of subsurface irrigation and furrow irrigation

2004 ◽  
Vol 50 (2) ◽  
pp. 61-68 ◽  
Author(s):  
C. Choi ◽  
I. Song ◽  
S. Stine ◽  
J. Pimentel ◽  
C. Gerba
Keyword(s):  
Drip Irrigation ◽  
Arid Regions ◽  
Irrigation System ◽  
Soil Surface ◽  
Furrow Irrigation ◽  
Subsurface Drip Irrigation ◽  
Vegetable Crops ◽  
Viral Contamination ◽  
Subsurface Drip ◽  
Semi Arid

Two different irrigation systems, subsurface drip irrigation and furrow irrigation, are tested to investigate the level of viral contamination and survival when tertiary effluent is used in arid and semi-arid regions. The effluent was injected with bacteriophages of PRD1 and MS2. A greater number of PRD1 and MS2 were recovered from the lettuce in the subsurface drip-irrigated plots as compared to those in the furrow-irrigated plots. Shallow drip tape installation and preferential water paths through cracks on the soil surface appeared to be the main causes of high viral contamination in subsurface drip irrigation plots, which led to the direct contact of the lettuce stems with the irrigation water which penetrated the soil surface. The water use efficiency of the subsurface drip irrigation system was higher than that of the furrow irrigation system. Thus, subsurface drip irrigation is an efficient irrigation method for vegetable crops in arid and semi-arid regions if viral contamination can be reduced. Deeper installation of drip tapes, frequent irrigations, and timely harvests based on cumulative heat units may further reduce health risks by ensuring viral die-off under various field conditions.

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