Long term effect of wastewater irrigation of forage crops on soil and plant quality parameters

Rusan, M.; Hinnawi, Sami; Rousan, Laith M.

doi:10.1016/j.desal.2006.10.032

Cited by 345 publications

(147 citation statements)

References 21 publications

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“…Generally, wastewater irrigation management aims at ensuring leaching of salts below the root systems (MOHAMMAD RUSAN et al, 2007). Here, this is not the case either for the calcisol or the fluvisoil, which both display elevated SARs and ESP in the deepest soil layers.…”

Section: Discussionmentioning

confidence: 99%

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Belaid

Néel

Kallel

et al. 2010

rseau

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In arid regions such as near Sfax (Tunisia), treated wastewater effluents (TWE) are often applied as agricultural irrigation. Irrigation TWE usually contain large amounts of carbon, nitrogen and sodium. The objective of this study was to evaluate the impact of TWE irrigation on soil salinity and sodicity. In the city of Sfax, two sites were selected with two soil types (fluvisol and calcisol) having been irrigated for 4 and 15 years respectively. Soils were sampled at three different depths (0-30, 30-60 and 60-90 cm) in the TWE irrigated area and in a non-irrigated control area. Irrigated and non-irrigated study soils were analyzed for pH, nitrate and ammonia, electrical conductivity (ECs), exchangeable sodium percentage (ESP), sodium absorption ratio (SAR) and soil organic matter.The fluvisol, irrigated for only four years, is more affected by salinity than the calcisol irrigated for 15 years. In the upper fluvisol layer irrigated by the treated wastewater, ECs reach 8 mS•cm-1 and ESP a value of 15% while in all layers of the calcisol, ECs and ESP are lower and rarely exceed 4 mS•cm-1 and 6% respectively. This result is due to a combination of factors in the fluvisol treatment area including texture, cation exchange capacity, irrigation procedure and crop management.Dans les régions arides telles que le cas de Sfax (Tunisie), les eaux usées traitées (EUT) sont souvent utilisées en irrigation agricole. Généralement, les EUT sont riches en composés organiques, en azote et en sodium. L’objectif de cette étude est d’évaluer l’impact de l’irrigation par les EUT sur la salinité et la sodicité des sols. Dans la région de Sfax, deux sites ont été sélectionnés, représentant deux types de sols différents (fluvisol et calcisol) irrigués par les EUT, respectivement depuis 4 et 15 ans. Des échantillons des sols ont été prélevés systématiquement à trois profondeurs différentes (0-30, 30-60 et 60-90 cm) au niveau des parcelles irriguées et sur des placettes contrôle non irriguées (témoin). Sur chaque échantillon composite de sol, les pH (eau, KCl), teneurs en nitrate et ammonium, capacité d’échange cationique (CEC), conductivités électriques (CEs), taux de sodium échangeable (ESP), ratios d’absorption de sodium et teneurs en matières organiques ont été mesurés.Le fluvisol, irrigué depuis seulement quatre ans, est plus affecté par la salinité que le calcisol, irrigué depuis 15 ans. Dans les niveaux de surface du fluvisol, la CEs et l’ESP ont atteint les seuils critiques de 8 mS•cm-1 et 15 % respectivement, alors qu’au niveau du calcisol, la CEs et l’ESP sont plus faibles et dépassent rarement 4 mS•cm-1 et 5 % respectivement. Pour le fluvisol, ce résultat est dû à la combinaison de plusieurs facteurs impliquant la texture, la capacité d’échange cationique, la procédure d’irrigation et la rotation des cultures

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Section: Discussionmentioning

confidence: 99%

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Belaid

Néel

Kallel

et al. 2010

rseau

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“…Although TSE is certainly an option for agriculture, many concerns exist as to its safety and social acceptability, particularly the accumulation of heavy metals that are toxic to humans and animals, as well as the potential to transmit pathogenic micro-organisms [9][10][11][12]. TSE typically has higher salt (200-3000 mg/L TDS), nutrient, solids and frequently metal content than conventional irrigation water [13][14][15][16] and it has been observed that these metals can accumulate in food crops. For example, a recent study in which TSE was used to grow okra in Saudi Arabia found that the okra frequently accumulated Ni, Pb, Cd and Cr above safe limits and the authors concluded that the vegetable was not safe for direct consumption by human beings [17].…”

Section: Treated Sewage Effluent (Tse)mentioning

confidence: 99%

Sustainable Agriculture in the Arabian/Persian Gulf Region Utilizing Marginal Water Resources: Making the Best of a Bad Situation

2018

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One way to encourage agricultural self-sufficiency in arid regions is to increase the productivity of conventional freshwater agriculture. Another way is to develop and implement novel strategies and technologies that do not deplete scarce freshwater. Here we describe several options for countries in the Gulf region to increase their agricultural production by taking advantage of a lesser used resource-marginal water. Marginal water can be treated sewage effluent, produced oilfield water, brackish groundwater or seawater. We describe how this resource can be used to grow salt-tolerant forage crops, microalgae and aquaculture crops. Policies needed to implement and/or scale-up such practices are also outlined.

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“…However, the results showed no evidence to suggest that irrigation with wastewater affect the relative abundance of hydrophobic aliphatic groups in SOM. Other authors reported that soil quality conditions were affected, such as total soil carbon and nitrogen, mineral nitrogen in soil solution, microbial activity, composition of microbial communities and their function, exchangeable calcium and magnesium, salinity, sodicity, clay dispersion and hydraulic conductivity (Abedi- Koupai et al 2006, Bhardwaj et al 2007, Fonseca et al 2007, Rusan et al 2007, Walker and Lin 2008, Gotosa et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…In natural water, organic matter content measured as chemical oxygen demand (COD), is 9-16 mg/L (Metcalf and Eddy 2003), compared to 260-900 mg/L COD in wastewaters with entrained domestic and industrial waste (Feigin et al 1991, Metcalf and Eddy 2003, Chen et al 2010. Therefore, wastewater has become essential in arid land agriculture (Feigin et al 1991, Rusan et al 2007, Chen et al 2010, Gotosa et al 2011, in contrast to the non-arid land, where their SOM content is higher.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Dissolved Organic Matter in an Agricultural Wastewater-Irrigated Soil, in Semi Arid Mexico

Fuentes-Rivas

León²,

Ramos-Leal

et al. 2017

Rev. Int. Contam. Ambie.

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Most agricultural soils in semi-arid regions present a deficiency of organic matter (SOM). In order to improve this soil, wastewater is used due to its high organic carbon content. The objective of the present work was to characterize the dissolved organic matter in five residual water samples and ten soil samples from the agricultural area of the municipality of San Luis Potosí by 3D fluorescence spectroscopy. The changes in some physical and chemical properties of the soil were also analyzed. The soil samples were collected at different depths to observe the anthropogenic organic matter presence, their retention in the soil profile, their fluorescence intensity changes and their migration into the aquifer. Temperature, electrical conductivity, dissolved oxygen, oxidation-reduction potential and total dissolved solids were determined in situ. The major anions and cations: Na3-, SO4 2-, NO 3-, NO2 -, were analysed in laboratory. The results show the great contribution of organic matter (>2020 mg/L) in the residual water used for irrigation, as well as, the low content of SOM. The physical and chemical results indicate that the high electrical conductivity of the water, represents a risk of salinization for soils, but not of short term sodicity. The 3D fluorescence spectra of the soil profile, shows the presence of humic and fulvic acids, aromatic proteins and products of microbial degradation. The latter observed in that depth where there is a greater percentage of clay.Palabras clave: fluorescencia 3D, proteínas aromáticas, ácidos húmicos, ácidos fúlvicos, contaminación de suelo RESUMEN La mayoría de los suelos agrícolas en regiones semiáridas presentan una deficiencia de materia orgánica (MOS) y para compensarla se recurre al uso de agua residual por R.M. Fuentes Rivas et al. 576 su alto contenido de carbono orgánico. El objetivo del presente trabajo fue caracterizar la materia orgánica disuelta con espectroscopía de fluorescencia 3D, en cinco muestras de agua residual y 10 de suelo de la zona agrícola del municipio de San Luis Potosí. Se analizaron los cambios de algunas propiedades físicas y químicas del suelo y del agua. Las muestras se colectaron a diferentes profundidades para observar la presencia de materia orgánica, su retención a lo largo del perfil de suelo y su migración hacia el acuífero. La temperatura, la conductividad eléctrica, el oxígeno disuelto, el potencial de oxido-reducción y los sólidos totales disueltos se determinaron in situ. En laboratorio fueron analizados los aniones y cationes mayoritarios: Na . Los resultados muestran el gran aporte de materia orgánica del agua residual empleada para el riego, así como, el bajo contenido de MOS. Los resultados físicos y químicos indican que la alta conductividad eléctrica del agua representa un riesgo de salinización para los suelos, pero no de sodicidad a corto plazo. Los espectros de fluorescencia 3D del perfil del suelo evidencian la presencia de ácidos húmicos, acidos fúlvicos, proteínas aromáticas y productos de degradación microbian...

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Long term effect of wastewater irrigation of forage crops on soil and plant quality parameters

Cited by 345 publications

References 21 publications

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Sustainable Agriculture in the Arabian/Persian Gulf Region Utilizing Marginal Water Resources: Making the Best of a Bad Situation

Characterization of Dissolved Organic Matter in an Agricultural Wastewater-Irrigated Soil, in Semi Arid Mexico

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