Range:
Subjects: Ammonium sulfate; Azotobacter chroococcum; Sandy soils; Sunflowers
Subjects: Case studies; Chemical properties; Crops; Land use; Soil fertility
Subjects: Case studies; Crops; Information systems; Land forms; Plant products
Subjects: Land cover; Land use; Population growth; Rural areas; Urban development
Subjects: Case studies; Ecosystems; Irrigation water; Water treatment
Subjects: Calcium chloride; Cold storage; Dates (Fruit); Mineral processing; Palms
Subjects: Empowerment; Woman
Subjects: Historical methods; Islamic heritage
Subjects: Schools; Secondary schools; Students