Effect of irrigation with anaerobic baffled reactor effluent
on Swiss chard (Beta vulgaris cicla.) yield, nutrient uptake
and leaching
by W. Musazura, A. O. Odindo, I. B. Bame, and E. H. Tesfamariam
J Water Reuse Desalination
Volume 5(4):592-609
December 9, 2015
©2015 by IWA Publishing
A map showing an aerial view of the experimental site, physical features (river) and the
surrounding households.
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Neutron probe calibration equations at different soil layers (0–20, 20–40 and 40–60 cm) showing
the relationship between dry spot count ratios (Y axis) and wet spot count ratios (X axis).
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Merck Reflectoquant test kit (a), leachates collected from the field (b) and the CCM200 used for
measuring chlorophyll content (c).
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Changes in soil N, P and Mn in the experimental plots over three planting seasons.
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Swiss chard growth (dry mass, fresh mass and chlorophyll content) within three seasons and
different treatments (ABR, TWF and RFF). *In summer 2012 ABR plots were irrigated with tap
water only and no fertiliser was applied.
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Swiss chard leaves from the ABR treatment (a) and RFF treatment (b) showing differences in
growth during the winter season.
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Nitrate (N) and phosphate (P) concentrations (mg L−1) at two sampling depths (30 and 50 cm).
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Phosphate concentrations (mg L−1) in plots irrigated with ABR effluent (ABR), tap water with
fertiliser (TWF) and rain-fed (RFF).
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
The effect of depth and irrigation source treatments on phosphate concentrations (mg L−1).
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Interaction between profile depth and time with respect to phosphate concentrations (mg L−1).
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing
Amounts of P (kg m−2) added to different treatments (ABR, TWF and RFF) during the Swiss
chard growing season.
W. Musazura et al. J Water Reuse Desalination 2015;5:592609
©2015 by IWA Publishing