RT journal article
T1 Biofertilizer and Bioherbicide Potential of Microalgae-Based Wastewater and Diplotaxis harra Boiss for Sustainable Barley Production
A1 Jmii, Ghofrane
A1 Keffala, Chema
A1 García Zorrilla, Jesús
A1 Zouhir, Fouad
A1 Jupsin, Hugues
A1 Mokhtar, Ameni
A1 Tychon, Bernard
A2 Química Orgánica
K1 Hordeum vulgare
K1 fertilizers
K1 weed control
K1 high-rate algal ponds
K1 irrigation
K1 microalgae
K1 valorization
AB The dual benefit of wastewater and microalgal biomass is a major advantage of high-rate algal ponds, enabling the environmental valorization of these byproducts. This research explored the effect of treated wastewater on the agri-food species Hordeum vulgare (L.) and its associated weed, Emex spinosa (L.) Campd., along with the effects of algal biomass (primarily composed of Closterium, Chlorella, and Scenedesmus spp.) and Diplotaxis harra leaf powder. Initial pot trials applied microalgae and D. harra at 2, 4, and 6 g·kg−1 soil, also confirming that the treated wastewater met reuse standards and did not affect plant growth. The combined treatment at 4 g·kg−1 led to the highest H. vulgare increases in fresh weight (162.71%), root length (73.75%), and shoot length (72.87%), while reducing E. spinosa shoot and root lengths by 30.79% and 52.18%, and fresh weight by 68.24%. Subsequent field experiments using 1.26 t ha−1 of 0.5-cm-applied D. harra and microalgae powders enhanced H. vulgare growth, while reducing the growth of E. spinosa. The reduction in E. spinosa growth was associated with increased electrolyte leakage and malondialdehyde content. These results support the integration of high-rate algal ponds into agriculture, promoting water reuse and reducing reliance on synthetic fertilizers and herbicides in barley production.
PB MDPI
SN 2073-4395
YR 2025
FD 2025-08
LK http://hdl.handle.net/10498/39360
UL http://hdl.handle.net/10498/39360
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026