During his college years, Li Nongqiang, an agronomy major, became interested in the knowledge of soil and fertilizer, and set up the "Project Team of Improving Soil and Fertilizer" under the guidance of university teachers. After graduating from college, he has been engaged in this research. He leads his team into the fields and travels frequently, dealing with land for more than 340 days a year at most. when2014year5moon25sun,The column "Focus Interview" broadcasts the cultivated land "fed thin by chemical fertilizer". Mentioned "We are trying to feed the world.1/5The amount of chemical fertilizer used by the population is now close to that of the global total.1/3. The experience of some foreign countries has proved that the large-scale operation of agriculture is an important prerequisite to solve the problem of land degradation. The work of' improving soil and fertilizer' involves not only specific technical design and institutional arrangements, but also closely related to the national agricultural strategic layout. "Li Nongqiang knew that he was shouldering important social responsibilities. Li Nongqiang's research team said that in order to implement the "soil improvement and fertilizer improvement" project, we should become experts in fertilizer, soil improvement, crop nutrition and other fields. Just like a special chef, he is not only an expert in food, but also an expert in nutrition matching, nutrition testing, nutrition strengthening, nutrition evaluation and other fields. Since then, the team has a very grounded name-"Tu Chef".2020year12moon27On November, the column "Focus Interview" once again broadcast "Granary needs fertile soil to cultivate". It mentioned that "our basic soil fertility declined very seriously, the soil fertility was insufficient, the grain yield declined, the disease became more serious, and the yield didn't come up after adding much fertilizer". In the face of over-feeding of chemical fertilizers and compound fertilizers, the cultivated land is "indigestion", the cultivated land is getting thinner and thinner, and diseases are increasing. In addition, soil hardening, salinization and pesticide pollution are causing more and more serious land problems. Li Nongqiang will lead his team firmly on the road of "increasing efficiency in fertile soil, increasing yield and improving quality".