Systematically study the yield physiology of wheat and establish the theory and technology of super-high yield cultivation. The physiological mechanism of flag leaf and root senescence under high yield conditions and its relationship with environmental conditions were systematically studied. The stages and physiological characteristics of wheat senescence and their relationship with grain weight formation were put forward, and the leading role of deep roots in senescence regulation and the mechanism of nitrogen, water and population regulating senescence process were found. The effective ways to prolong the slow decay period, shorten the fast decay period, maintain the high photosynthetic rate for a long time, improve the filling rate and increase the grain weight in this period were put forward.
The theory of improving biological yield and economic coefficient at the same time, increasing dry matter accumulation from flowering to maturity, blending to panicle and increasing grain weight was explored, which laid a theoretical foundation for obtaining super-high yield. The super-high yield cultivation techniques of wheat with nitrogen fertilizer backward movement as the key technology were established. 1997~200 1 year, high-yield wheat1500,000 mu was popularized in Shandong, Henan, Hebei, northern Anhui and northern Jiangsu, which led to the increase of wheat yield in high-yield fields in different degrees (400~600 kg/mu), with a cumulative increase of 6.9 billion kg.
"Wheat senescence physiology and super-high-yield cultivation theory and technology" won the second prize of national scientific and technological progress (first prize) 200 1. In 2005, it was designated as the main technology of wheat production in China by the Ministry of Agriculture. Using this technology, in 2005 and 2006, the yield per mu of wheat in Mengxiao Town 1.8 1 mu Taishan 23 in Yanzhou City was 735.66 kg, and that of wheat in Maike22 was 4.2 1 mu was 727.43 kg, which was a national high-yield demonstration of wheat. In-depth study of wheat quality physiology, to create high-quality and high-yield cultivation techniques. In view of the problems existing in wheat production in China, such as excessive nitrogen application, excessive proportion of basic nitrogen application, improper irrigation amount and irrigation period, which lead to unstable wheat quality, low yield, excessive nitrogen leaching and low utilization rate of water and fertilizer, the quality physiology of wheat was systematically studied, and it was proposed to increase plant nitrogen accumulation from jointing stage to flowering stage, promote protein degradation in the middle and late filling stage, improve the transfer of nitrogen stored in vegetative organs to grains, properly adjust the nitrogen-sulfur ratio of grains, and increase the content of glutenin macromolecules and grains. An optimized cultivation technology system was established to improve the quality and yield of strong gluten and medium gluten wheat at the same time, including reducing the amount of nitrogen applied as base fertilizer, increasing the proportion of topdressing, controlling irrigation before, during and after growth, accurately applying nitrogen, sulfur, phosphorus and potassium fertilizer, achieving high quality and high yield, reducing soil nitrogen leaching and improving water and fertilizer utilization rate. From 2002 to 2005, 654.38+0.4 billion mu was popularized in Huang-Huai-Hai wheat area, and the wheat yield was increased by 3.9 billion kg, which achieved remarkable economic and ecological benefits and made important contributions to the production of high-quality wheat in China. "Theory and Technology of Wheat Quality Physiology and High-quality and High-yield Cultivation" won the second prize (first prize) of National Science and Technology Progress in 2006.
Since the Ninth Five-Year Plan, he has undertaken two national natural science funds, one of the major projects in the Tenth Five-Year Plan 1, and one of the projects of Shandong Science and Technology Department 1. The theory and technology of wheat senescence physiology and super-high-yield cultivation won the second prize of 200 1 national scientific and technological progress, and the theory and technology of wheat quality physiology and high-quality and high-yield cultivation won the second prize of national scientific and technological progress in 2006. Breeding of a new wheat variety Lumai 22 with high yield and good quality and its supporting cultivation techniques won the first prize of Shandong Science and Technology Progress Award. Organize 13 northern agricultural colleges and universities to compile the curriculum textbook "Various Theories on Crop Cultivation in the North" for 2 1 century, complete the monograph "Wheat Yield and Quality Physiology and Cultivation Techniques", and translate "Crop Physiology" (USA). He edited, co-edited or edited 20 monographs and published 206 academic papers. 26 doctoral students and 33 master students have been trained.
Professor Yu delivered a speech at the Fifth Session of the 10th China People's Political Consultative Conference. Professor Yu directs wheat field management in Yanzhou. On February 29th, 65438, China Academy of Engineering announced the list of newly elected academicians, and Professor Yu from our Agricultural College was elected as an academician of China Academy of Engineering. So far, academicians and professors of China Academy of Sciences have been guiding the management of Yanzhou wheat field in our school.
On February 29th, 65438, China Institute of Engineering announced the list of newly elected academicians, and Professor Yu from the Agricultural College of our school was elected as an academician of China Institute of Engineering. Up to now, there are 6 academicians of China Academy of Sciences and China Academy of Engineering among the teachers in our school, and 6 students have been elected academicians of China Academy of Sciences and China Academy of Engineering.
Professor Yu is a student of Academician Yu Songlie, a famous wheat cultivation expert in China. Engaged in the research and practice of crop cultivation theory and technology for a long time. At present, he is a professor and doctoral supervisor of Shandong Agricultural University, a member of the discipline evaluation group of the State Council Academic Degrees Committee, the head of the wheat expert guidance group of the Ministry of Agriculture, the executive director of China Crop Society and the head of the wheat cultivation group; Member of the 9th and 10th China People's Political Consultative Conference.
After Academician Yu Songlie founded the theory of high-yield and precise sowing of wheat, Professor Yu systematically studied the physiology of wheat yield. His theory and technology of wheat senescence physiology and super-high-yield cultivation won the second prize of 200 1 national scientific and technological progress, and 197-200 1 was popularized in Shandong, Henan, Hebei, northern Anhui and northern Jiangsu. He deeply studied the quality and physiology of wheat and created high-quality and high-yield cultivation techniques. From 2002 to 2005, he popularized1.400 million mu in Huang-Huai-Hai wheat area, and increased the wheat yield by 3.9 billion kg, which made an important contribution to the production of high-quality wheat in China. The project won the second prize of National Science and Technology Progress Award in 2006. He and the wheat expert group of the Ministry of Agriculture led by him have made important contributions to the national wheat production increase for four consecutive years from 2004 to 2007 and the goal of grain recovery growth.
1998 won special government allowance in February, May 1st Labor Medal in April and National Model Teacher of the Ministry of Education in September for his contribution to agricultural science and technology education and production in China. In 2000, he was awarded the national advanced worker by the State Council; In 2004, he was rated as an advanced individual in national agricultural science and technology popularization by the Ministry of Agriculture; He Li 2006 Science and Technology Progress Award; In 2007, he was awarded the title of national advanced worker in grain production.
Professor Yu was elected as an academician of China Academy of Engineering, which further established the leading position of cultivation discipline in China and the important position of wheat research in cultivation physiology.