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Abstract (in English)
Dryland comprises nearly half of the land mass, more than forty % of the earth surface, where plenty of people live and mostly depend on agriculture to support their basic needs. Several factors, however, have an important effect on agriculture in these regions, including the lack of water, severe temperatures, frequent droughts, bare and marginal soil, topography that is highly vulnerable to natural disasters, erosive rain, and wind. To maintain agricultural productivity in these areas, a variety of crucial scientific studies and cultural practices have been regularly released, altered, and advised in order to address these problems. These important studies and practices included using crops that tolerate stress, integrating multiple farming systems, harvesting rainwater and using it for supplemental irrigation, conserving soil and water. Thus, an attempt has been made in this review to discuss several topics regarding agricultural constraints on dryland and the strategies that have been implemented to address such constraints.