الفترة:
Subjects: Egypt; Osmosis; Sinai peninsula; Groundwater
Subjects: Egypt; Desertification
Subjects: Egypt; Agricultural development
Subjects: Water; Groundwater
Subjects: Chickens; Exocrine glands; Fruits; Semen; Sperm
Subjects: Cultivation of virgin land; Egypt; Nile River Delta; Groundwater
Subjects: Flowers
Subjects: Egypt; Sinai peninsula; Groundwater
Subjects: Asir; Bisha; Grassland plants; Saudi Arabia
Subjects: Egypt; Siwa Oasis
Subjects: Calcareous soils; Legumes