Photo taken on May 27, 2022 shows farming machines equipped with Beidou Navigation Satellite System working at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows a drone working at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows the reservoir of an intelligent fertilizing and irrigation system at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows a farming machine equipped with Beidou Navigation Satellite System working at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows a farming machine equipped with Beidou Navigation Satellite System working at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows a drone working at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows a farming machine equipped with Beidou Navigation Satellite System working at an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
Aerial photo taken on May 27, 2022 shows an unmanned farm in Northwest China's Ningxia Hui autonomous region. Using machinery equipped with Beidou Navigation Satellite System, intelligent fertilizing and irrigation systems, and agricultural drones, the unmanned farms affiliated to Ningxia State Farm have become a model of modern agricultural development in Ningxia. [Photo/Xinhua]
