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Effects of greywater irrigation on plant growth, water use and soil properties

Author

Listed:
  • Pinto, U.
  • Maheshwari, B.L.
  • Grewal, H.S.

Abstract

Glasshouse experiments were conducted to examine the effects of greywater irrigation on the growth of silverbeet plants, their water use and changes in soil properties. The experimental treatments included in the study were: irrigating with 100% potable water (control, treatment T0), irrigating with 100% greywater (treatment T1), irrigating with a mixture of greywater and potable water in 1:1 ratio (treatment T2) and irrigating alternate with potable water for one irrigation and greywater for the next (treatment T3). The pH and EC values of the greywater used in the study were 10.5 and 1358μS/cm respectively. Results showed that greywater irrigation had no significant effect on soil total N and total P after plant harvest, but there were significant effects on the values of soil pH and EC. Furthermore, there were no significant effects of greywater irrigation on plant dry biomass, water use and number of leaves. For the treatment that involved irrigating with 100% greywater (treatment T1), there was a significant increase in soil pH and EC when compared with the control and the other two irrigation treatments. The study indicated that irrigating silverbeet plants with potable water and greywater in an alternate pattern (treatment T3) had soil pH and EC levels similar to that of irrigation with 100% potable water. This also meant that irrigating alternate with potable water and greywater could reduce some of the soil health risks associated with the reuse of greywater.

Suggested Citation

  • Pinto, U. & Maheshwari, B.L. & Grewal, H.S., 2010. "Effects of greywater irrigation on plant growth, water use and soil properties," Resources, Conservation & Recycling, Elsevier, vol. 54(7), pages 429-435.
    • Handle: RePEc:eee:recore:v:54:y:2010:i:7:p:429-435
    DOI: 10.1016/j.resconrec.2009.09.007
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    Citations

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    Cited by:

    1. Suhad A. A. A. N. Almuktar & Suhail N. Abed & Miklas Scholz, 2018. "Contaminations of Soil and Two Capsicum annuum Generations Irrigated by Reused Urban Wastewater Treated by Different Reed Beds," IJERPH, MDPI, vol. 15(8), pages 1-25, August.
    2. Fedler, Clifford B. & Duan, Runbin, 2011. "Biomass production for bioenergy using recycled wastewater in a natural waste treatment system," Resources, Conservation & Recycling, Elsevier, vol. 55(8), pages 793-800.
    3. Karen Takahashi & Gabriela Araújo & Vali Pott & Nídia Yoshida & Liana Lima & Anderson Caires & Paula Paulo, 2022. "Relationship of Photosynthetic Activity of Polygonum acuminatum and Ludwigia lagunae with Physicochemical Aspects of Greywater in a Zero-Liquid Discharge System," Resources, MDPI, vol. 11(10), pages 1-16, September.
    4. Ghulam Qadir & Vanessa Pino & Arianna Brambilla & Fernando Alonso-Marroquin, 2023. "Staircase Wetlands for the Treatment of Greywater and the Effect of Greywater on Soil Microbes," Sustainability, MDPI, vol. 15(7), pages 1-30, March.

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