干热风来袭 如何抗旱保灌稳农业生产？

Core Viewpoint - The article highlights the impact of high-temperature weather on wheat production in regions like Henan and Shaanxi, emphasizing the need for proactive measures to combat drought and ensure crop yield [1][6]. Group 1: Weather Impact on Agriculture - High-temperature dry wind conditions are expected to occur in winter wheat areas for 3-5 days, particularly affecting the critical growth stages of wheat [1][4]. - Dry wind leads to increased transpiration in crops, resulting in physiological drought, water imbalance, and reduced photosynthesis, which may ultimately cause significant yield loss [2][4]. Group 2: Regional Responses - Henan, the largest wheat-producing province in China, has approximately 85 million acres of wheat planted and is implementing measures to mitigate the effects of dry wind, aiming to ensure a good harvest [6]. - In Henan, over 23 million acres have already adopted the "one spray, three defenses" strategy to enhance grain filling rates and extend filling time [6]. - In Shaanxi's Tongchuan, local authorities are mobilizing resources, including 100 drones, to conduct "one spray, three defenses" operations to combat drought and support stable grain production [9][10]. Group 3: Irrigation Techniques - In Shanxi's Changzhi, agricultural experts are employing drip irrigation and spray irrigation methods to increase watering frequency and ensure precise irrigation for wheat crops [12].