| Titles |
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English :
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Management of using treated wastewater in irrigation to minimize its harmful impacts on accumulation of some heavy metals in soil and plant
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Arabic :
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إدارة استخدام المياه المعالجة فى الرى لتقليل تأثيراتها الضارة على تراكم بعض العناصر الثقيلة فى التربة والنبات
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| Abstract |
Two field experiments were conducted at Abu Rawash Farm Giza Governorate, Egypt. The first experiment was cultivated with canolla and the second one cultivated with lupine. A split-plot design was chosen with three variables: nitrogen fertilization rates (4/4, 3/4 and 1/2 the recommended rate), irrigation water type (secondary treated wastewater, STW, or well water, WW) and irrigation system (drip or bubbler).
In general, dry matter content of canolla irrigated with different irrigation water types and irrigation systems as well as dry matter content of lupine plant parts irrigated with STW significantly increased as a result of fertilization with the nitrogen recommended rate compared to the other two ones. However, no significant effect for N fertilization rate on dry matter content of lupine plants irrigated with WW was encountered. Irrigation using drip and bubbler system slightly increased the dry matter content of both canolla and lupine plants, respectively, higher than the another one.
The variation in irrigation water type had no significant effect on the available content of Fe, Mn, Pb, Co, Ni, B and Cr in soil planted with canolla as well as the available content of Zn, Pb, Co, Ni, B and Co in soil planted with lupine. However, the available content of Cu in soil cultivated with canola, opposite to Zn, and available content of Mn, Cu, Ni and b in soil cultivated with lupine opposite to Fe significantly increased as a result of irrigation with WW compared to STW. Irrigation system used had non significant influence on the available content of most studied heavy metals in the two experimental soils. However, drip irrigation system slightly increased the concentration of Cu in soil cultivated with canolla as well as Mn, Pb, Co, Ni and B in soil cultivated with lupine, on contrary to Fe and Zn in soil cultivated with canolla where the bubbler irrigation system was the most positively effective one. The reduction in N fertilization rate from the recommended one to its half one, in general, gradually decreased the available content of the most concerned heavy metals in soils except B which generally increased.
Under all treatment conditions, the studied heavy metals, except B and to some extant Mn or Zn, accumulated in canolla and lupine roots were higher than in shoots. Iron was the greatest concentration among all the concerned elements in the grown plant tissue excepts in lupine shoots where Mn was the highest one, however Co was lowest one especially in roots. Iron, Mn, Zn, B and cr concentrations in lupine roots, on the contrary to Cu, Pb, Co and than that in canolla ones. In general, BCF values of Co, Cr and Ni in the grown plant roots, especially Ni and Co in canolla and Cr in lupine, were to a great extant the highest among all the studied elements. Generally, accumulations of the studied nine heavy metals in canolla and lupine plant tissues as a result of irrigation with the bubbler system were to a great extant higher than that obtained under the conditions of drip irrigation one. Later on, there is no a pronounced trend for the impact of N fertilization reduction on the accumulation of studied heavy metals in grown plants.
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| Publication year |
2004
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| Pages |
299-320
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| Availability location |
Faculty of Agriculture Minufiya University, Shibin El-Kom, Egypt
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| Availability number |
Vol.1
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| Organization Name |
Soil, Water and Environment Research Institute (SWERI)
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| Country |
Egypt
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| City |
Minufiya
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| Publisher |
Name:
Faculty of Agriculture Minufiya University, Shibin El-Kom, Egypt
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| serial title |
Minufiya Journal of Agricultural Research
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| ISSN |
1110-0265
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| Volume |
1
. 29
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| Department |
Environment Research
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| Author(s) from ARC |
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| Agris Categories |
Agricultural research
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AGROVOC
TERMS |
Irrigation systems.
Nitrogen fertilizers.
Rapeseed.
Trace elements.
Wastewater irrigation.
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| Proposed Agrovoc |
Lupine plants;
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| Publication Type |
Journal
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