Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Sonia BOUDJABI, Nawal ABABSA, Haroun CHENCHOUNI, Aya DEBAB, Amna BRAHMI
Sewage sludge, as biosolids, can improve the fertility of degraded soils in arid and semi-arid regions. The use of these biosolids reduces reliance on increasingly expensive chemical fertilizers. They also limit carbon emissions and promote soil microbial growth, while stimulating plant growth. The objective of this study is to investigate the physiological and biochemical response of two durum wheat varieties (Hedba and BiDi) to the application of residual sludge (D0 = control, D1 = 30 g and D2 = 60 g of sludge per pot) under water stress conditions (S0 = 100%, S1 = 40%, S2 = 25% FC). The analyses indicated a linear and significant accumulation in the biochemical variables (sugars, prolineandN) under the effect of stress and residual sludge. Contrary to the physiological variables with (WRC, Cell Integrity). However, chlorophyll a content accumulates with stress and residual sludge. Hedba variety is more resistant to stress compared to BD.
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