On May 31, CCTV1 "Life Circle" "Academician Talks Technology" interviewed Prof. Niu Yuhua from Shaanxi University of Science and Technology School of Chemistry and Chemical Engineering. membrane).
China is the largest apple producer and consumer in the world. In 2019, the annual output of China apples was as high as 42.4 million tons, and the export was only 971,000 tons. The problem is that the quality of the fruit is not high, the manpower is expensive, and the traditional bagging technology produces more than one million tons of plastic waste annually.
Since 2017, the science and technology innovation team of students from Shaanxi University of Science and Technology has started to carry out technical research. The members of the R&D team have extracted the best quality humic acid from coal through a large number of experiments and used it as the product raw material. After thousands of experiments, the humic acid has been determined. To ensure the safety of the apple "mask", after hundreds of experiments to determine the amount of film sprayed each time, to ensure that the apple "mask" sprayed on the fruit surface can quickly form a film, and produce a certain degree of deformation with the growth and development of the fruit, Satisfy apple growth.
After 4 years of unremitting efforts, researchers have overcome technical difficulties one by one, such as safety, water resistance , antibacterial, UV resistance, spraying fruit surface film-forming effect and film degradation performance. The humic acid apple liquid film with antibacterial, water retention, protection and other functions has been developed to replace the traditional apple bagging technology, which solves the farming problems that the masses are concerned about, such as the high cost of apple production bagging, the low quality of apples, and the high labor intensity. And carry out large-scale demonstration applications in northern Shaanxi to provide strong technical support for the transformation and upgrading of the Shaanxi apple industry, for the green development of the industry, to consolidate the status of Shaanxi apple in China's "leader", and to contribute to the "100 billion level" goal. Technological power.
Niu Yuhua is a professor at the School of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, a director of the China Humic Acid Association, and a member of the National Environmental Materials Expert Committee. He has presided over nearly 20 major projects at all levels and has undertaken and completed many horizontal projects. In 2018, he won the title of the third national "Soil Star", and in 2017, he won the 60th Anniversary Contribution Award for the development of China's humic acid industry. The team led by the Shaanxi University of Science and Technology Humic Acid Ecological New Material R&D Team closely follows the national development strategy and is a high-level scientific and technological innovation team dedicated to agricultural ecological governance and restoration. It has successively established effective industry-university-research cooperation relationships with dozens of enterprises and institutions and research institutes. The team is committed to the research and development of humic acid ecological new materials, using the humic acid + concept to carry out systematic research on "humic acid + soil ecology", "humic acid + atmospheric ecology", "humic acid + water ecology ", and developed humic acid Ecological governance series products have made positive contributions to increasing agricultural production, increasing farmers' income and helping rural revitalization with science and technology.
Shaanxi University of Science and Technology established the development concept of "innovation, openness, sharing, discipline, structure, and quality" in the first year of the "14th Five-Year Plan", deepened the all-round, multi-level and three-dimensional open school-running pattern, and insisted on putting technological innovation in the development of school An important position in the overall situation, establish a long-term mechanism for government-industry-university-research cooperation, promote the transformation of scientific and technological achievements, and continuously strengthen the combination of science and education, school-local cooperation, school-enterprise cooperation, and industry-academia integration, and comprehensively improve the level of scientific research, innovation capabilities, and achievements. Transformation ability, social service ability, learn the party history with practical actions, understand the idea, do practical things, open a new situation, strive to catch up and surpass, and pay tribute to the centenary of the founding of the party.
