Group 1 - The autumn harvest in Heilongjiang is marked by significant agricultural activities, with rice and sweet corn being the primary crops harvested during the White Dew season [5][7][9] - Farmers in the region are utilizing early-maturing rice varieties and scientific management practices, leading to an earlier harvest and increased yields [7] - The sweet corn harvest in Qiqihar City is also thriving, with modern machinery facilitating efficient collection and processing, contributing to a robust local economy [7][9] Group 2 - The expected production of sweet corn in Kedong County is projected to reach 150,000 mu by 2025, with an estimated output value exceeding 1.5 billion yuan [9] - The agricultural activities during this season are not only enhancing local food supply but also boosting employment, with over 3,000 migrant workers engaged in the sweet corn harvesting peak [9] - The region's agricultural practices during the White Dew period reflect a deep cultural significance, emphasizing the importance of seasonal changes in farming [5][9]