Irrigation and Drainage Systems

, Volume 24, Issue 1–2, pp 95–112 | Cite as

Effect of long-term un-treated domestic wastewater re-use on soil quality, wheat grain and straw yields and attributes of fodder quality

  • Robert W. Simmons
  • Waqas Ahmad
  • Andrew D. Noble
  • Michael Blummel
  • Alexandra Evans
  • Philipp Weckenbrock
Article

Abstract

In 2006 a comprehensive sampling program was undertaken in two pre-selected peri-urban villages in Faisalabad, Pakistan to evaluate the soil and agronomic impacts of long-term (25–30 years) untreated wastewater re-use on wheat grain and straw yields and attributes of wheat straw fodder quality. Soil SAR, ESP, RSC and ECe were 63%, 37%, 31%, and 50% higher under wastewater (WW) as compared with canal water (CW) irrigated plots. Further, 2.7 and 6.65 fold increases in soil NO3 + NO2 - N and Olsen-P were observed in WW as compared with CW irrigated plots. However, no significant differences in grain yield, wheat straw biomass, or fodder quality attributes were observed between WW and CW irrigated plots. In addition, for both CW and WW irrigated plots wheat straw, Cd and Pb concentrations were orders of magnitude below the EC Maximum permissible levels for Pb and Cd in feed materials and thus pose no threat to the fodder-livestock food chain. Further, elevated soil N associated with WW irrigated plots has a significant (p < 0.01) positive influence on fodder quality by increasing the N content. Factorial ANOVA with covariance indicates that effective management of the elevated soil ECe in WW irrigated plots would increase grain yield and wheat straw biomass by 853 kg ha−1 (19.5%) and 819 kg ha−1 (18.6%) respectively as compared with CW irrigated plots. In Faisalabad, if managed appropriately to address emerging salinity issues the contribution of wastewater irrigation to the achievement of MDGs 1 and 7 could be significant if adverse impacts remain as marginal as found in this study.

Keywords

Untreated Domestic wastewater re-use Wheat Grain and fodder yields Fodder quality 

Notes

Acknowledgements

The authors would like to acknowledge the funding support provided by BMZ (Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung) under the project “Ensuring Health and Food Safety from Rapidly Expanding Wastewater Irrigation in South Asia”. In addition, the authors would like to recognize inputs of laboratory staff from AYUB Agricultural Research Institute, Faisalabad, Pakistan and the ICRISAT Central Laboratory, Hyderabad, India.

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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Robert W. Simmons
    • 1
  • Waqas Ahmad
    • 2
  • Andrew D. Noble
    • 3
  • Michael Blummel
    • 4
  • Alexandra Evans
    • 5
  • Philipp Weckenbrock
    • 6
  1. 1.Cranfield University, NSRICranfieldUK
  2. 2.International Water Management Institute (IWMI)LahorePakistan
  3. 3.IWMIc/o National Agriculture and Forestry Research Institute (NAFRI)VientianeLao P.D.R.
  4. 4.International Livestock Research Institute (ILRI) India Office c/o ICRISATPatancheruIndia
  5. 5.IWMI Head OfficeColomboSri Lanka
  6. 6.Section on Applied Geography of the Tropics and SubtropicsUniversity of FreiburgFreiburgGermany

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