应对降温保秋收：大型收割机昼夜作业 各地全力抢收秋粮稳进度

Core Insights - Recent rain and snow in Heilongjiang province have impacted the autumn grain harvest, prompting farmers to accelerate their harvesting efforts to complete the process before adverse weather conditions worsen [1][3]. Group 1: Harvest Progress - As of October 16, Heilongjiang province has harvested 18.0915 million acres of crops, accounting for nearly 80% of the expected harvest [5]. - In Shandong province, favorable weather conditions have allowed for accelerated harvesting, with over 70% of the autumn grain already collected as of October 18 [5][7]. - By October 17, Shandong had harvested 4.8823 million acres of autumn grain, representing 74% of the total, with 135,500 harvesting machines deployed [7]. Group 2: Weather Impact - A large-scale drop in temperature is affecting the northeastern and Huang-Huai-Hai production areas, but its impact on the autumn harvest is considered limited due to the already established yield in the northeast [9]. - The cold air is expected to clear rain clouds in the Huang-Huai-Hai region, with a temperature rise anticipated from October 20, which will facilitate soil drying and grain harvesting [11]. - In the Yangtze River region, the current high temperatures are expected to normalize with the cold front, aiding in the subsequent autumn grain harvest [13].