Cotton Genomics and Genetics 2025, Vol.16, No.2, 95-106 http://cropscipublisher.com/index.php/cgg 102 fine-staple cotton. The quality of different varieties varies greatly. If mixed picking and storage, it is easy to lower the overall quality grade. In terms of logistics, Xinjiang is far away from textile mills in the mainland, and maintaining stable quality during long-distance transportation of cotton bales is also a major challenge. These factors determine that Xinjiang urgently needs the support of post-harvest management technology to overcome the disadvantages of natural conditions and regions and achieve cotton quality and efficiency improvement. Figure 2 Research area diagram (Adopted from Dai et al., 2024) 6.2 Technology introduction and application Faced with the above challenges, governments and enterprises at all levels in Xinjiang have actively introduced and promoted new post-harvest management technologies. First, in the harvesting process, the application of cotton pickers and supporting agronomic improvements are vigorously promoted (Xin et al., 2021). The autonomous region government actively subsidizes and promotes large-scale cotton pickers, and cooperatives and farmers widely use machine picking. By 2021, the machine picking rate of cotton in Xinjiang has exceeded 75%. In order to reduce the impurities in machine-picked cotton, the Xinjiang Production and Construction Corps and other units have studied cotton planting models and defoliant improvements to make machine picking cleaner. Second, in the processing process, Xinjiang has built and renovated a number of large-scale cotton ginning processing enterprises in recent years, and introduced advanced complete sets of cotton ginning production lines at home and abroad. Many cotton ginning mills are equipped with multi-stage pre-cleaners, metal separators and foreign fiber removal devices to meet the impurity removal needs of machine-picked cotton. At the same time, the processing process is automated and quality tested online, and the temperature, humidity and impurity discharge are monitored to ensure the stability of the quality of lint. The autonomous region has also implemented classified supervision of cotton processing enterprises, encouraging leading enterprises to merge small and backward cotton ginning factories to improve the overall processing capacity and level. Third, in the warehousing and logistics link, a new model of packaging encryption and public inspection integration has been introduced. The processed lint is packed with high density and equipped with cotton stacking robots to reduce the pollution caused by human handling. All lint cotton shipped out of the factory has been notarized and inspected, and the quality data has been uploaded to the national cotton public inspection information system, so that the quality information of each batch of cotton can be checked online. Xinjiang has also built several cotton logistics parks, where cotton bales after public inspection are stored in a centralized manner and transported by special railway trains, effectively shortening the transportation cycle and reducing quality risks. The comprehensive application of these technologies and measures has significantly improved the post-harvest management level of Xinjiang cotton.
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