Range:
Subjects: Iraq; Groundwater
Subjects: Statistics; Sudan; Agriculture
Subjects: Agricultural wastes; Organic wastes; Saudi Arabia
Subjects: Acid rain
Subjects: Fertilizers; Reproduction; Tomatoes
Subjects: Lentils; Syria; Genetics; Physiology
Subjects: Corn; Forage plants; Oman; Genetics
Subjects: Corn; Drought; Irrigation
Subjects: Drought; Wild plants
Subjects: Syria; Genetics
Subjects: Calcareous soils; Cobalt; Groundwater; Iraq