Crop production in Ethiopia is facing challenges due to erratic rainfall caused by climate change. To address this, research was conducted to improve crop productivity and water efficiency through irrigation methods. Findings show that strategies like deficit irrigation, mulching, and optimal fertilization can increase yields while saving water. For example, irrigating maize using alternate furrow method at 75% ETc can save 50% water without reducing yield. Skipping irrigation during less sensitive crop stages can also save water with minimal impact on yields. Additionally, using plastic mulch and proper fertilization can further enhance crop yields. Future research should focus on water-saving techniques and optimized fertilization to improve crop production in areas with limited water sources.