初创：条件简陋，仓储效率有限 吴子丹是原国家粮食局副局长，在粮食领域工作了一辈子，了解并见证了我国粮仓的一路变迁。他介 绍，早期的粮仓多是简陋的土木结构仓房，有些还是由祠堂、庙宇、民房改建而成，每仓容量仅3万至6 万公斤。这种粮仓仅靠自然通风和简单的防虫措施保管粮食，条件差、损耗大、管理不便。而且，还有 大量粮食储存在露天席茓囤（用席子和茓子围成的传统圆形储粮工具）中，虫害、鼠害更严重，粮食损 失巨大。 图①：钢筋席茓囤。 图②：位于四川成都的中储粮气膜仓。 以上图片均为国家粮食和物资储备局科学研究院提供 数据来源：国家粮食和物资储备局等 核心阅读 夏粮丰收，来自沃野田畴的粮食，"住"进了新型粮仓。 从土木粮仓到智慧绿色粮仓，从靠天储粮到智能管粮，从吃得饱到吃得好、吃得健康，几十年间的粮仓 变迁史，也是一部粮食安全的升级史。记者采访专家、实地探访，探究我国粮仓的变迁之路。 我国作为农业大国，解决好14亿多人的吃饭问题，始终是治国理政的头等大事。而粮食仓储设施水平， 直接影响着粮食收储能力和粮食储存安全，是实现粮食安全的重要保障。目前，全国粮食标准仓房完好 仓容超7亿吨，实现低温准低温储粮仓容超2亿吨，应用气调 ...

核心阅读 夏粮丰收，来自沃野田畴的粮食，"住"进了新型粮仓。 从土木粮仓到智慧绿色粮仓，从靠天储粮到智能管粮，从吃得饱到吃得好、吃得健康，几十年间的粮仓 变迁史，也是一部粮食安全的升级史。记者采访专家、实地探访，探究我国粮仓的变迁之路。 我国作为农业大国，解决好14亿多人的吃饭问题，始终是治国理政的头等大事。而粮食仓储设施水平， 直接影响着粮食收储能力和粮食储存安全，是实现粮食安全的重要保障。目前，全国粮食标准仓房完好 仓容超7亿吨，实现低温准低温储粮仓容超2亿吨，应用气调储粮技术仓容超5500万吨。 初创：条件简陋，仓储效率有限 吴子丹是原国家粮食局副局长，在粮食领域工作了一辈子，了解并见证了我国粮仓的一路变迁。他介 绍，早期的粮仓多是简陋的土木结构仓房，有些还是由祠堂、庙宇、民房改建而成，每仓容量仅3万至6 万公斤。这种粮仓仅靠自然通风和简单的防虫措施保管粮食，条件差、损耗大、管理不便。而且，还有 大量粮食储存在露天席茓囤（用席子和茓子围成的传统圆形储粮工具）中，虫害、鼠害更严重，粮食损 失巨大。 "就拿土木结构粮仓来说，整体结构由泥土、砖石、木材搭建，密封性差，防潮、防虫能力弱。每到雨 季就要担心粮食受 ...

Core Viewpoint - The article emphasizes the collaborative efforts across various regions and departments to optimize services in grain acquisition and storage, particularly during the summer harvest season, to reduce grain loss and ensure food security [1][14]. Group 1: Weather Impact and Logistics - The Zhengzhou North Station, a key railway hub in Central China, has been experiencing high temperatures, with trains carrying essential goods like grain and fertilizers departing every three minutes [4]. - To address the challenges posed by complex summer weather and the risk of grain loss during transport, the Zhengzhou Railway Bureau has implemented a comprehensive logistics plan promoting bulk grain transport in containers to minimize losses [6]. Group 2: Financial Support and Infrastructure - In Linquan, Anhui, a grain cooperative has established a smart drying tower and processing workshop with support from local postal savings banks, drying over a hundred tons of grain daily, maintaining moisture levels between 12.5% and 14.5% to prevent spoilage [10]. - The Postal Savings Bank in Linquan has provided 230 million yuan in loans to over 300 grain-related enterprises, with plans to increase financial support for grain storage and optimization [12]. Group 3: Green Storage Technologies - The National Grain and Material Reserve Bureau is accelerating the development of a "five-in-one" green storage technology system, aiming to establish 100 demonstration sites for green storage technology applications within three years [15][29]. - Various green storage technologies are being showcased, including a wheeled grain suction machine that operates in a negative pressure environment, enhancing efficiency and preserving grain integrity [19][21]. - The integration of multiple green storage technologies aims to reduce grain loss during storage, with a statistic from the FAO indicating that a 1% reduction in global food loss could equate to an additional 27 million tons of food, sufficient to feed 70 million people for a year [25].

Core Insights - The large-scale mechanized harvesting of summer wheat across the country has been completed, and the grain purchasing process is actively underway [1] - The new shallow round grain storage facilities have been put into operation, significantly improving efficiency and ensuring better food safety [1] Group 1: Grain Storage Innovations - The newly constructed shallow round warehouses have a single capacity of 10,000 tons and can increase overall efficiency by 4 to 5 times compared to traditional flat warehouses [1] - The use of mechanized grain loading in these new facilities allows for a closed environment, reducing dust and improving the working conditions for staff [1] Group 2: Scientific Grain Preservation Techniques - Various advanced grain storage techniques have been developed, including temperature control through air conditioning, internal circulation, and nitrogen gas adjustment [2] - Northern grain storage facilities utilize internal circulation to maintain a "cold core" during winter, while southern facilities commonly use nitrogen gas to reduce oxygen levels and slow down grain respiration [2] Group 3: Emerging Technologies in Grain Storage - The industry is exploring the use of carbon dioxide gas adjustment for grain storage, which requires maintaining a concentration of over 35% for 15 days [3] - Although carbon dioxide gas adjustment has potential benefits, its application is currently limited due to the instability and cost fluctuations of carbon dioxide sources [3] - The trend towards green scientific grain storage is expected to grow, with advancements in technology potentially reducing carbon capture costs and enhancing food preservation [3]

Core Insights - The summer grain purchase in Shaanxi province is progressing smoothly, with various measures implemented to stabilize the market and ensure a steady supply of grain [1][4]. Group 1: Grain Purchase Operations - Shaanxi has established 881 grain purchase points with a storage capacity of approximately 27.5 billion kilograms, and the Agricultural Development Bank of Shaanxi has prepared 5.6 billion yuan in credit funds to support the summer grain purchase [4]. - The quality of the newly harvested wheat is reported to be good, with most being classified as second-grade grain, and the purchase price for second-grade wheat is set at 1.22 yuan per jin [3][4]. - Grain brokers have become a significant force in the summer grain purchase, effectively connecting farmers with purchasing enterprises and improving the efficiency of grain circulation [5][6]. Group 2: Technological Advancements in Grain Storage - The implementation of smart grain storage technologies, such as nitrogen-controlled storage and visual pest detection systems, has enhanced the quality and safety of grain storage [9][10]. - Shaanxi is focusing on upgrading its government storage facilities and has initiated the construction and renovation of 1.1 million tons of storage capacity, promoting green storage technologies [10]. - A comprehensive information management system for grain reserves has been established, enabling real-time monitoring of the entire grain purchase, storage, and sales process [10].

Group 1: Summer Grain Purchase - The summer grain purchase is crucial for the interests of grain farmers and the stable operation of the grain market, with an estimated purchase volume of around 200 billion jin, including 170 billion jin of wheat [2] - The quality of this year's wheat is reported to be better than usual, with active purchasing and a faster pace compared to the previous year, supported by both policy and market factors [2][3] - The implementation of minimum purchase price policies in key provinces has clarified the price floor for wheat, stabilizing market expectations and ensuring farmers can sell their grain [2] Group 2: Grain Storage Technology - The demand for fresh, healthy, and high-quality grain has led to higher requirements for grain storage, with challenges such as temperature control and pest management [3] - Innovative technologies like "internal circulation temperature control" and carbon dioxide atmosphere storage are being utilized to enhance grain preservation and quality [3][4] - The coverage of technological grain storage by the Central Reserve Grain Group exceeds 98%, with comprehensive grain loss rates controlled within 1% [4][5] Group 3: Grain Processing and Waste Reduction - The reduction of waste in the processing stage is essential for maximizing the value of every grain, aligning with national strategies to combat food waste [6] - Companies like COFCO are transforming by utilizing by-products like wheat bran into valuable ingredients, enhancing the quality and shelf life of whole wheat flour [7] - The national action plan aims to control grain loss rates in production, storage, transportation, and processing below international averages by the end of 2027, requiring collective efforts from all sectors [6][7]

Core Viewpoint - The article emphasizes the importance of modern grain storage techniques and technologies in ensuring food safety and quality, highlighting the advancements made in grain storage facilities in Henan Province, China [1][2]. Group 1: Storage Techniques - The grain storage facility utilizes low-temperature storage technology to maintain grain quality, with temperatures kept between 10°C to 15°C to prevent the degradation of nutritional content and inhibit pest activity [1][2]. - Advanced technologies such as online monitoring and real-time feedback systems are employed to ensure optimal storage conditions, significantly improving the efficiency and accuracy of grain management [2]. Group 2: Technological Advancements - The facility has transitioned from traditional manual monitoring methods to a more automated system, featuring over 100 temperature sensors and a centralized online platform for data display, which reduces the workload for staff and enhances grain health [2]. - The implementation of modern storage techniques, including air circulation fumigation for pest control, has contributed to a greener and more efficient grain storage process [1][2]. Group 3: Strategic Initiatives - The local government's strategy of "storing grain in the ground and storing grain in technology" has led to significant upgrades in grain storage infrastructure, with new high-standard storage facilities being constructed or renovated [2]. - The grain storage facility is moving towards a "cloud management" approach, which not only improves storage efficiency but also aligns with scientific and sustainable storage practices [2].

Core Viewpoint - The article highlights the launch of the National Grain and Material Reserve Science and Technology Activity Week, emphasizing the importance of technological innovation in ensuring national food security through advancements in grain circulation and storage technologies [1]. Group 1: Technological Innovations - Ten technological innovations in grain circulation have been released, focusing on areas such as grain storage and food processing [5]. - The smart green storage technology system utilizes artificial intelligence for high-precision monitoring and traceability of stored grain, enhancing management levels [5]. - An intelligent sampling system for grain acquisition has been implemented in Yiyang, Hunan, automating sampling and quality inspections for rice and corn [7]. Group 2: Grain Drying and Storage Improvements - In Sichuan, the process from harvesting wheat to drying and storage has been optimized to ensure that grain does not stay overnight, enhancing efficiency [8]. - The drying centers utilize advanced technology to ensure uniform heating of grain, maintaining moisture content between 12.5% and 13.5%, which meets national storage standards [16]. - By 2025, a shared drying model will be introduced in San Tai County, supported by government subsidies to reduce production costs and improve post-harvest grain handling [18]. Group 3: Impact on Grain Loss Reduction - The establishment of 44 drying centers in San Tai County aims to minimize post-harvest losses, with an expected reduction of over 30,000 tons of grain spoilage annually [18]. - Nationwide, over 5,500 post-harvest service centers have been built, promoting the use of 10 million sets of scientific grain storage tools to aid in reducing grain loss [19].