Range:
Subjects: Saudi Arabia; Soil conservation
Subjects: Saudi Arabia; Sunflowers
Subjects: Saudi Arabia; Seeds; Pastures
Subjects: Agriculture; Nitrogen; Pastures; Fertilizers; Plants
Subjects: Oman; Environmental aspects
Subjects: Fertilizers; Agricultural development; Research; Salinity; Soils
Subjects: Egypt; Fatty acids; Jizah (Egypt); Seeds; Woody plants
Subjects: Manures; Organic fertilizers; Sorghum (Genus); Fertilizers
Subjects: Fertilizers; Manures; Organic fertilizers
Subjects: Agricultural development; Agricultural production; Financing; Islamic jurisprudence; Marketing