At 9:30 pm on July 18, 2020, CCTV financial channel's 'Dialogue' program broadcasted a special episode about the Black Land Protection. Prof. ZHANG Xudong from the Institute of Applied Ecology, Chinese Academy of Sciences, was invited to shared his knowledge about conservation tillage. During the interview, Prof. ZHANG highlighted the black soil erosion problem caused by traditional farming as well as the background to promote conservation tillage techniques. He showed the black soil samples from a 14-year of conservation tillage research he and his team implemented in Lishu County, Jilin Province, and explained in detail the improvement effect of conservation tillage on black soil quality.

Prof. ZHANG Xudong has devoted himself to soil science research for decades. In 2007, he led his research team members to Gaojia Village, Lishu Town, Lishu County, Jilin Province, where they started the research and development of black soil conservation tillage techniques and related long-term soil quality monitoring. After more than ten years of research there, they created a set of easy-to-use conservation tillage techniques that can effectively improve black soil quality such as fertility as well as drought and erosion resistance.

This interview not only disseminated basic knowledge and technical points of conservation tillage to the general public, but also discussed the benefits of conservation tillage in increasing farmers’ income and promoting agricultural, economic and social development. It also provided a paradigm for other agricultural production areas to follow, which will help accelerate the pace of the promotion of conservation tillage.

The CCTV's (channel 2) "Dialogue" program is a high-end talk show on social hot topics, important economic phenomena, and the latest events. In this interview episode, Wang Jiayun, deputy director of the Department of Agricultural Mechanization Management of the Ministry of Agriculture and Rural Affairs, Li Hongwen, dean of the State Conservation Tillage Research Institute of China Agricultural University, YAN He, deputy mayor of Lishu County, Siping City, Jilin Province, and Miao Quan, senior engineer of the Agricultural Machinery Promotion Station of Lishu were invited to attend together.