Impact of wastewater irrigation on concentration and absorption of nutrients and heavy metals in barley in calcareous soils
Abstract In arid and semiarid regions such as Iran, wastewater reuse can be a means to compensate for the lack of water. The use of refined wastewater in agriculture will reduce the use of agriculture water that it can be used for other purpose such as drinking. A study was carried out to investigate the effect irrigation with wastewater effluent on concentration and absorption of nutrients and heavy metals in barley grown in the calcareous soils. Surface soil samples (0-30 cm) were collected from Najafabad, Khatoonabad and Lenjan areas in Isfahan province, Iran.A pot experiment consisted of 2 irrigation treatments including irrigation with tap water and with wastewater and 3 soils was conducted in the green house. Plants were grown in pots and they were irrigated with urban water effluent for 70 days. Plant samples were analyzed after barley harvest. Selected nutrients and heavy metals concentration and absorption were also determined in barley. Irrigation with waste water increase concentration and absorption of phosphorus (P), iron (Fe) and zinc (Zn) in barley.
Abstract
In arid and semiarid regions such as Iran, wastewater reuse can be a means to compensate for the lack of water. The use of refined wastewater in agriculture will reduce the use of agriculture water that it can be used for other purpose such as drinking. A study was carried out to investigate the effect irrigation with wastewater effluent on concentration and absorption of nutrients and heavy metals in barley grown in the calcareous soils. Surface soil samples (0-30 cm) were collected from Najafabad, Khatoonabad and Lenjan areas in Isfahan province, Iran.A pot experiment consisted of 2 irrigation treatments including irrigation with tap water and with wastewater and 3 soils was conducted in the green house. Plants were grown in pots and they were irrigated with urban water effluent for 70 days. Plant samples were analyzed after barley harvest. Selected nutrients and heavy metals concentration and absorption were also determined in barley. Irrigation with waste water increase concentration and absorption of phosphorus (P), iron (Fe) and zinc (Zn) in barley.
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J. Bio. & Env. Sci. 2014<br />
Fig. 8. Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>wastewater</str<strong>on</strong>g> <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> absorbed N<br />
<strong>in</strong> <strong>barley</strong>.<br />
K=Khato<strong>on</strong>abad, N=Najafabad, L=Lenjan, W=Tap<br />
water, E=Effluent.<br />
Fig. 11. Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>wastewater</str<strong>on</strong>g> <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> absorbed<br />
Mn <strong>in</strong> <strong>barley</strong>.<br />
K=Khato<strong>on</strong>abad, N=Najafabad, L=Lenjan, W=Tap<br />
water, E=Effluent.<br />
Fig. 9. Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>wastewater</str<strong>on</strong>g> <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> absorbed P<br />
<strong>in</strong> <strong>barley</strong>.<br />
K=Khato<strong>on</strong>abad, N=Najafabad, L=Lenjan, W=Tap<br />
water, E=Effluent.<br />
Fig.12. Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>wastewater</str<strong>on</strong>g> <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> absorbed<br />
Fe <strong>in</strong> <strong>barley</strong>.<br />
K=Khato<strong>on</strong>abad, N=Najafabad, L=Lenjan, W=Tap<br />
water, E=Effluent.<br />
Fig. 10. Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>wastewater</str<strong>on</strong>g> <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> absorbed<br />
K <strong>in</strong> <strong>barley</strong>.<br />
K=Khato<strong>on</strong>abad, N=Najafabad, L=Lenjan, W=Tap<br />
water, E=Effluent.<br />
Fig.13. Effect <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>wastewater</str<strong>on</strong>g> <str<strong>on</strong>g>irrigati<strong>on</strong></str<strong>on</strong>g> <strong>on</strong> absorbed<br />
Zn <strong>in</strong> <strong>barley</strong>.<br />
K=Khato<strong>on</strong>abad, N=Najafabad, L=Lenjan, W=Tap<br />
water, E=Effluent.<br />
457 | Ahmadifard
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