近期降温对秋收秋种有什么影响？专家解答

Group 1 - The recent cold weather is affecting the autumn grain harvest and winter wheat planting in China, primarily impacting the Northeast and Huang-Huai-Hai regions, while the Yangtze River middle and lower reaches are less affected [1] - In the Northeast, the autumn grain yield has already been established, and the harvest progress is slightly faster than last year, with limited impact from the cold weather due to small local snowfall [1] - The cold air is expected to clear rain clouds in the Huang-Huai-Hai region, allowing for a rise in temperature and facilitating soil drying and autumn grain harvesting starting from the 20th [1] Group 2 - Farmers in the Northeast typically wait for natural dehydration of autumn grain before harvesting, and the upcoming clear weather will help accelerate the harvest process [1] - For late-sown winter wheat, it is advised to wait for soil moisture to decrease to an appropriate level before sowing, while also increasing sowing density and adding base fertilizer to ensure stable and high yields for the next year [3] - The current higher temperatures in the Yangtze River middle and lower reaches compared to previous years will normalize with the cold weather, benefiting the subsequent autumn grain harvest [3]