Subsurface Microirrigation with Effluent

Oron, Gideon; DeMalach, Joel; Hoffman, Zafrir; Cibotaru, Rodica

doi:10.1061/(asce)0733-9437(1991)117:1(25)

Cited by 54 publications

(27 citation statements)

References 8 publications

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“…In a related study, more than 90% of spray-irrigated lettuce had E. coli 0157:H7, whereas less than 20% of surface-irrigated lettuce did (Solomon et al 2002). Comparing furrow and drip kits, this study confirmed that furrow-irrigated lettuce is more contaminated (Oron et al 1991(Oron et al , 1995. This is because furrows are often filled with irrigation water at the time of application, which causes more soil wetting leading to lettuce contamination from soils.…”

Section: Discussionsupporting

confidence: 61%

Effect of low‐cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater

Keraita

Konradsen

Drechsel³

et al. 2007

Tropical Med Int Health

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Summaryobjective To assess the effectiveness of simple irrigation methods such as drip irrigation kits, furrow irrigation and use of watering cans in reducing contamination of lettuce irrigated with polluted water in urban farming in Ghana.methods Trials on drip kits, furrow irrigation and watering cans were conducted with urban vegetable farmers. Trials were arranged in a completely randomised block design with each plot having all three irrigation methods tested. This was conducted in both dry and wet seasons. Three hundred and ninetysix lettuce, 72 soil, 15 poultry manure and 32 water samples were analysed for thermotolerant coliforms and helminth eggs.

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Section: Discussionsupporting

confidence: 61%

Effect of low‐cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater

Keraita

Konradsen

Drechsel³

et al. 2007

Tropical Med Int Health

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“…When evaluating wheat yield, they found a response between 6.19 and 6.87 Mg ha -1 with the application of residual water, indicating that the nutrients present in water can be enough for an optimal growth of the crop. Al-Nakshabandi et al (1997) and Oron et al (1991) also observed an increase in yields when applying residual waters, indicating that the production is favored with the sole application of waste water. Kiziloglu et al (2007) reported an N increase of 0.18% in the soil, at a depth of 30 cm, and a greater yield in the cultivation of cabbage irrigated with residual water, as compared to the yield obtained with irrigation water.…”

Section: Nitrogen Transformationsmentioning

confidence: 93%

“…Assuming a cost of N equivalent to urea ($1675 MX pesos Mg -1 ), the application of urban residual water for crop production represents savings, as is indicated by the following cases: in Saudi Arabia, the 300 kg N ha -1 applied to wheat crops by Hussain et al (1996), represent $ 502.5, the 200 kg N ha -1 applied by Oron et al (1991), correspond to $ 335, and the applications done by Hussain and Al-Jaloud (1998, represent USD $ 251.25 (for the 150 kg N ha -1 ). The application of residual water in Valle del Mezquital represents an investment per hectare that varies from $335.00 MX pesos, for a dosage of 200 kg N, to $1340.00 MX pesos with applications of 800 kg N ha -1 (Hernández et al, 1993).…”

Section: Economic Value Of Residual Watersmentioning

confidence: 99%

Using Wastewater as a Source of N in Agriculture: Emissions of Gases and Reuse of Sludge on Soil Fertility

Grisell¹,

Francisco²

2011

Waste Water - Treatment and Reutilization

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“…The drainfield is generally composed of a series of media-filled trenches that are approximately 90 cm wide and 60 to 90 cm deep, with a minimum of 270 cm distance between the centers of the neighboring trenches. For areas where the soils have limitations for a conventional system, an alternative system, such as low-pressure pipe distribution system , areal fill (NCGA, 2005), or a drip system (Oron et al, 1991), are used for disposing of wastewater within the drainfield.…”

Section: Septic Systemsmentioning

confidence: 99%

Future directions for hydropedology: quantifying impacts of global change on land use

Vepraskas

Heitman

Austin

2009

Hydrol. Earth Syst. Sci.

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Abstract. Hydropedology is well positioned to address contemporary issues resulting from climate change. We propose a six-step process by which digital, field-scale maps will be produced to show where climate change impacts will be greatest for two land uses: a) home sites using septic systems, and b) wetlands. State and federal laws have defined critical water table levels that can be used to determine where septic systems will function well or fail, and where wetlands are likely to occur. Hydrologic models along with historic rainfall and temperature data can be used to compute long records of water table data. However, it is difficult to extrapolate such data across land regions, because too little work has been done to test different ways for doing this reliably. The modeled water table data can be used to define soil drainage classes for individual mapping units, and the drainage classes used to extrapolate the data regionally using existing digital soil survey maps. Estimates of changes in precipitation and temperature can also be input into the models to compute changes to water table levels and drainage classes. To do this effectively, more work needs to be done on developing daily climate files from the monthly climate change predictions. Technology currently exists to use the NRCS Soil Survey Geographic (SSURGO) Database with hydrologic model predictions to develop maps within a GIS that show climate change impacts on septic system performance and wetland boundaries. By using these maps, planners will have the option to scale back development in sensitive areas, or simply monitor the water quality of these areas for pathogenic organisms. The calibrated models and prediction maps should Correspondence to: M. J. Vepraskas (michael vepraskas@ncsu.edu) be useful throughout the Coastal Plain region. Similar work for other climate-change and land-use issues can be a valuable contribution from hydropedologists.

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Subsurface Microirrigation with Effluent

Cited by 54 publications

References 8 publications

Effect of low‐cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater

Effect of low‐cost irrigation methods on microbial contamination of lettuce irrigated with untreated wastewater

Using Wastewater as a Source of N in Agriculture: Emissions of Gases and Reuse of Sludge on Soil Fertility

Future directions for hydropedology: quantifying impacts of global change on land use

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