Conservation Agriculture in the Drylands of the Middle East and North Africa (MENA) Region: Past Trend, Current Opportunities, Challenges and Future Outlook
This review paper on Conservation Agriculture (CA) in MENA region synthesize available research findings on CA, its past trends, current opportunities and challenges, evidence on potential benefits from its adaptation, discuss its future outlook, and make relevant recommendations for interventions and novel research needs for its wider diffusion in the MENA region. About 25 to 40 % out of the 53 million hectares total arable land is estimated to be suitable for CA in the region. Research studies carried under a range of climatic, soil, management and cropping conditions in many countries of MENA reported several benefits including higher and more stable yields and profits, reduced risks of crop loss, labor requirements, soil erosion, and improved soil moisture and quality under CA system. Despite its benefits, adoption of CA in MENA is still very low for various reasons including: lack of affordable and well-adapted seeders, the complexity of the CA system which posed a major challenge for mostly uneducated farmers to comprehend, ill-conceived policies that promote cereal intensification hence inadvertently promote monocropping, tradeoffs between residue retention and livestock feed, lack of adequate policy and institutional framework and incentives to enhance farmers’ adoption, and the private sector’s active involvement in the dissemination of CA. The wider acceptance of CA requires the development of affordable and versatile zero-till drills alongside the implementation of integrated crop management practices. CA-based agronomic management practices must be tailored to the local soil and climate conditions with farmers’ participation. Finally, effective strategy for upscaling CA in MENA has to be developed by taking into consideration the unique features of the region. Despite the daunting past adoption trends and current challenges, we predict a bright future for CA in the region due to several factors including: rising energy prices and wage rates, the emergence of younger and more educated farmers, the advent of climate change, the increasing awareness on the degradation of land and water resources among farmers and policy makers, changes in dietary preferences subsequently increasing trends in demand and prices of legumes are expected to increase the desirability of CA and enhance its wider diffusion in MENA.