Author

D. M. Khalifa

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Open access 2026

POTENTIAL EFFECTS OF FELDSPAR AND BIOCHAR-BASED CO-INOCULATION OF RHIZOBACTERIA IN COWPEA PLANTS

In light-textured areas, soil deterioration lowers available nutrients and biological activity, therefore endangering the yield of dryland grain legumes. This study investigates whether combining feldspar, biochar, and two Bacillus strains (B. circulans and B. amyloliquefaciens) with plant growth–promoting rhizobacteri...

D. Khalifa, M. Al-Mutiry, H. Hewait et al. · Applied Ecology and Environm... · 0 citations

Open access 2026

Biochar-Loaded Purpureocillium lilacinum Formulation Enhances Soil Water Retention, Drought Tolerance, and Essential Oil Productivity of Spearmint (Mentha spicata L.)

: Water deficit severely constrains the productivity and essential oil yield of medicinal and aromatic crops grown in sandy soils. This study assessed whether a biochar-loaded Purpureocillium lilacinum formulation could improve soil properties, drought tolerance, growth, mineral nutrition, soil biological activity, and...

D. Khalifa, M. Al-Mutiry, W. Shehata et al. · Phyton · 0 citations

Open access Aug 2026

Improving properties of sandy soil and production of Phaseolus vulgaris cultivation using Azolla pinnata, eggshells, and biochar

Sandy soils are characterized by low organic matter content, weak nutrient retention, and limited water-holding capacity, which restrict crop productivity in arid and semi-arid regions. This study evaluated the individual and combined effects of biochar, Azolla pinnata, and eggshell powder on soil properties and the pr...

D. Khalifa, A. Alrashidi, Ammar Al-Farga et al. · Scientific Reports · 0 citations