An aerial drone photo taken on May 8, 2026 shows agricultural machines conducting sowing operations in a dry field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Xinhua/Wang Song)

An aerial drone photo taken on May 8, 2026 shows agricultural machines conducting sowing operations in a dry field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Xinhua/Wang Song)

An aerial drone photo taken on May 8, 2026 shows agricultural machines conducting sowing operations in a dry field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Xinhua/Wang Song)

Farmers transplant rice seedlings in a paddy field in northeast China's Heilongjiang Province, May 8, 2026. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Xinhua/Wang Song)

An aerial drone photo taken on May 8, 2026 shows an agricultural machine conducting bean sowing operations in a field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Lin Jinchun/Xinhua)

An aerial drone photo taken on May 8, 2026 shows a farmer operating a rice transplanter to transplant rice seedlings in a paddy field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Wang Jinbin/Xinhua)

Farmers operate agricultural machines to conduct corn sowing and leveling operations in a field in Jiayin County, northeast China's Heilongjiang Province, May 7, 2026. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Li Shaojun/Xinhua)

An aerial drone photo taken on May 8, 2026 shows farmers operating a rice transplanter to transplant rice seedlings in a paddy field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Wang Jinbin/Xinhua)

A drone carries out transport operations above a paddy field in northeast China's Heilongjiang Province, May 8, 2026. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Xinhua/Wang Song)

Farmers operate agricultural machines to conduct corn sowing operations in a field in Jiayin County, northeast China's Heilongjiang Province, May 7, 2026. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Li Shaojun/Xinhua)

Farmers operate a rice transplanter to transplant rice seedlings in a paddy field in northeast China's Heilongjiang Province, May 8, 2026. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Li Xing/Xinhua)

An aerial drone photo taken on May 8, 2026 shows farmers operating a rice transplanter to transplant rice seedlings in a paddy field in northeast China's Heilongjiang Province. Since the beginning of May, Heilongjiang, China's top grain-producing province, has seized the farming season and been busy with the sowing operations in both paddy rice fields and dry fields. (Photo by Li Xing/Xinhua)