New progress has been made in comprehensive research on post-harvest loss-reduction technology for grain

In 2010, the Ministry of Agriculture of the China Drying Network launched the “Project for Research and Demonstration and Promotion of Small-scale Grain Storage Facilities for Farmers in Different Areas” for special research projects in the public welfare sector to develop facilities for post-harvest primary processing of rice, wheat, corn and potatoes suitable for different regions. R & D and promotion.

This topic is based on the actual conditions of the industry and strives to promote technological equipment innovation, standard construction and demonstration and promotion. A total of 16 sets of grain storage facility equipment such as "group-mounted corn natural ventilation drying warehouse" and "negative-pressure wheat cleaning machine" have been developed. It has formulated 8 national or industrial standards, such as the "Code for the design of potato storage facilities", and has compiled 30 technical specifications for storing grain, such as the "preservative technology for the preservation of potato preservatives". A total of 22 patents have been obtained, such as “Delivery-type ventilation and dehumidification cooling and ventilation systems for small- and medium-sized depots” and “track-type grain cleaning machines”. A total of 38 demonstration sites for storing various kinds of grain storage technologies have been established, and 2020 agricultural technicians and farmers have been trained. The developed "group-mounted corn natural ventilation drying warehouse" utilizes the special geographical and climatic conditions in the northeast region, through the arrangement of wind tunnels and mechanical dumping treatment in the warehouse, and realizes natural draft drying and long-term storage of high-moisture corn. Comparing with “Rugao Food”, it has a good anti-mold and rodent-proof effect and can reduce post-production loss by 5%. Compared with storage after drying, it saves labor costs and saves energy consumption. This type of warehouse has been promoted in whole villages in Jilin and Heilongjiang and has been warmly welcomed by farmers. The insulated and airtight wheat storage warehouse designed according to the characteristics of small-scale storage of farmer households is equipped with corresponding technologies for clean-up, elevation, monitoring, insulation and gas-tightness, which not only ensures the storage quality of wheat, but also greatly reduces the facilities and management costs. The warehouse type was modeled in the Shandong Zhangqiu Wheat Plantation Cooperative Demonstration Group 3, where 36 tons of wheat were stored and sold in November. The farmers increased their income by 11,520 yuan. The standardized potato storage pit developed has fully utilized the natural conditions of the main northern potato production areas in China. It is based on low-cost, zero-pollution, natural-ventilated storage pits and equipped with appropriate control and auxiliary facilities to achieve safe winterization of potatoes. Storage. In 2013, 3,600 tons of potatoes were stored in the experimental area of ​​Huade County, Inner Mongolia, and the storage income was 6.1 million yuan. The revenue increased by 2.24 times over the previous year. This not only effectively improved the storage conditions of the local farmers, but also promoted the development of the local potato starch processing project and the wholesale market of production areas.

The project focuses on serving farmers and focuses on technology integration and information construction. It focuses on the production scale and technological needs of farmers' professional cooperatives and large grain producers, promotes the integration of modularization technology for drying, transporting and storage of grain, and develops different technology integrations. Model food post-birth drying storage processing equipment, and the introduction of modern information management technology to farmers to store grain links, the development of grain storage information monitoring and remote control systems, real-time intelligent analysis of different grain storage environment, control of environmental parameters, and guide the scientific storage of farmers The grain has achieved a good demonstration effect of "construction of the year and benefited from the year." It has the conditions to promote demonstration throughout the country. The results of this project have laid a solid foundation for further improving the level of post-production impairment, and comprehensively promoting the technical equipment for post-production damage reduction, which is of great significance to safeguarding national food security, increasing agricultural efficiency, and increasing farmers' income.

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