الفترة:
Subjects: Animal production; Feeds; Weight gain
Subjects: Mutation
Subjects: Marine algae; Organic fertilizers; Vitamin C; Water hyacinth
Subjects: Bacillus subtilis; Corn; Potash fertilizers
Subjects: Phosphatic fertilizers; Soil sciences; Water resources
Subjects: Drip irrigation; Irrigation systems; Potatoes
Subjects: Cucumbers
Subjects: Nutritive value
Subjects: Cole crops; Harvesting; Irrigation systems; Irrigation water; Sea level