Fields、Lab、Classroom，These three points connect Han Yingyan’s daily life。Han Yingyan, a university professor，Half time for students，The other half of the time was given to vegetables。
Han Yingyan and lettuce have a special bond，Even her WeChat avatar is a row of vibrant lettuces of different colors。From college in 1997 to now，Han Yingyan has been "competing" with lettuce for more than 20 years，Committed to cultivating excellent lettuce varieties suitable for planting in Beijing。Currently，Han Yingyan is the deputy dean of the School of Plant Science and Technology, Beijing Agricultural College，He is also the director of the National Experimental Teaching Demonstration Center for Plant Production、Horticulture professional person in charge。
more than 20 years，In addition to cultivating lettuce，As a teacher, Han Yingyan also trained a batch of agricultural talents who promote agriculture and love agriculture。She is known for stimulating students’ interest、The starting point is to cultivate love for farmers，Promote curriculum reform in a drastic manner，Key issues surrounding the capital’s food basket，Created a teaching and research team that combines industry, academia, and research。
Han Yingyan (third from left) takes students to observe lettuce in the field。Photo courtesy of interviewee
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Wherever you go，The first thing Han Yingyan does when she puts down her backpack is to go to the local market to research lettuce。more than 20 years，Study cooking has long become Han Yingyan’s living habit。
Lettuce is a common green vegetable nowadays，However, what most people don’t know is，Because lettuce experts have been working tirelessly to overcome difficulties in the past 20 years，That’s why this delicate “exotic” vegetable that was once grown sporadically was introduced in Beijing、Rooting、Blooming，Becoming one of the leafy vegetables with the largest planting area in Beijing，Entered into citizens’ daily recipes。
“Lettuce was first grown along the Mediterranean coast，Sex is cool and cool，It is easy to bolt when the temperature exceeds 30 degrees Celsius，Directly affects the eating quality of lettuce，It’s difficult to grow in Beijing’s summer。Before 1990, lettuce was rarely grown in Beijing，It is even harder to find on the market。"Introduced by Han Yingyan。
Finding heat-resistant lettuce varieties has become a research focus。In order to meet the needs of Beijing citizens for lettuce，Can only filter from introduced varieties，While cultivating new varieties grown locally。Han Yingyan, who worked at Beijing Agricultural College after graduation, joined Fan Shuangxi (vegetable breeding expert) in 2001，The then deputy director of the Horticulture Department of Beijing Agricultural College、The lettuce R&D team of the current dean of Beijing Agricultural Vocational College，The primary issue involved in the research is the heat resistance of lettuce。
Behind the selective bet365 online sports betting mobilebreeding，It is the great hard work of the team members。Han Yingyan still remembers it，The years when we overcame the problem of heat resistance，She and her students go to the fields almost every day、Enter the greenhouse、Plunge into the laboratory。The temperature in the greenhouse is often above 40 degrees Celsius in summer，After working there for an hour, your whole body will be soaked with sweat。In the stuffy greenhouse，They need to use various methods to observe and identify the heat resistance of lettuce，And select the variety that is least sensitive to temperature。
After unremitting research，Han Yingyan’s team has achieved a series of innovative results。They bred 4 new high-quality heat-resistant varieties for the first time，Filling the gap at home and abroad；Cultivation of 4 new cold-resistant and high-yielding varieties，Breaking the monopoly of foreign varieties；Cultivation of 4 new varieties with purple leaves，It makes up for the shortcomings of conventional ordinary green leaf lettuce varieties currently on the market，Meeting people’s needs for rare and special vegetables。
It is reported，The "Beisheng", "Beishan Sheng" and "Beishizheng" series of varieties bred by Han Yingyan have been promoted and used in Beijing、Hebei、Shanxi、Henan and other places，Making lettuce rapidly develop from a sporadic special vegetable to a dominant vegetable，Becoming a key choice for vegetable farmers to increase their income and become rich。“Four varieties including Beisheng and Beisansheng have solved the technical problem of no heat-resistant lettuce varieties in my country。" Han Yingyan introduced。
Also，Han Yingyan has also achieved a series of scientific research results: she was the first to introduce and collect lettuce germplasm resources in China，Systematic evaluation of germplasm characteristics，For the first time, fingerprints of major lettuce varieties were constructed，Laid a germplasm foundation for cultivating new stress-resistant and high-yielding varieties；Create lettuce form、A comprehensive heat resistance identification index composed of multiple related indicators such as physiological, biochemical and molecular biology；Create different facility types for lettuce、Stubble in different seasons、High-yielding cultivation technology models with different planting methods，Targeted guidance on annual high-yield cultivation of lettuce，Achieve a complete set of improved seeds and methods，The annual average production increase is more than 15%。
Promote curriculum teaching reform，Let students establish an emotional connection with the land
“It is better to teach a man to fish than to teach him to fish”。more than twenty years，Han Yingyan always adheres to high standards、Strict requirements for cultivating students。“Only students have mastered excellent professional skills，Only in this way can we truly contribute to rural revitalization。”
“I was not very interested in my major from the beginning，But it gradually deepens step by step。"Han Yingyan recalled her reading experience，Tell reporters，When she was an undergraduate student at China Agricultural University，Not very clear about his own professional development，The interest is not that strong。But bet365 online sports betting appslowly，Passed Master、Step-by-step in-depth research at the doctoral stage，I found this thing very interesting，And meaningful。“Vegetables are closely related to people’s lives，If good varieties can be cultivated，Provide safe and high-quality vegetables for the people’s tables，It is very fulfilling。”
“Among our students，Two-thirds are from towns。"Han Yingyan made statistics and analyzed the enrollment situation of students in this major in the past ten years，Students about rural areas、Agriculture、Farmers do not have a deep understanding，Not to mention deep feelings，So I am not very interested in the profession，There is even a certain fear of difficulty。
She knows it，Interest is the best teacher。The horticulture major is a traditional agricultural major，Mainly teaching fruit trees、Vegetables、Breeding of ornamental plants、Cultivation and other related knowledge。To inspire students about agriculture、Interest and passion for vegetables，Let students' learning change from passive to active，Han Yingyan has put a lot of hard work into the course。2013，She will localize and improve the advanced educational concepts and methods she learned during her study abroad period and put them into practice，Led the reform of core skills courses for horticulture majors。
Where to start reform？First，Han Yingyan takes professional skills training class (also known as "farming class" by students)，Set before theory class，In other words，"Hands-on practice" first，Post-theoretical teaching，Construct a spiral teaching method of practice-theory-re-practice。
This has never been done before in the setting of technical courses in relevant colleges and universities across the country。The purpose of this reform is，First by doing it，Get in touch with the practical operations in the profession first，Form a preliminary understanding of the profession，Eliminate students’ fear of majors，Cultivate students’ professional interests and enhance innovation capabilities。
Another important measure in curriculum reform，It is to change the teaching model of practical classes。"Previous practical lessons，Each skill is trained separately，The laboratory teacher will prepare various materials needed for students to practice，Students only need to follow the teacher’s instructions in class，Don’t worry about the students after the operation。”Han Yingyan believes that this method has great disadvantages，The training of students’ abilities is relatively scattered、Incoherent，Students are in a passive state，It is difficult to cultivate their connection and emotion with the land。
The reform measures proposed by Han Yingyan are，Assign a certain plot of land to each student，Students themselves become the protagonists of the course、The subject of learning、Owner of the land，It is up to them to choose the types of crops to grow，The teacher only provides guidance during concentrated teaching time，The entire process is maintained and managed by the students themselves，The fruits of the harvest are also arranged by the students themselves。
“This immersive management and maintenance process，The students have worked hard，Established a connection with the land，Also experienced the joy of harvest，To the course、Having a strong bet365 online sports bettinginterest in the profession。At the same time，Students mastered the cultivation of horticultural plants、Basic methods and skills in breeding, maintenance and management，Equipped to solve emergencies that arise in management、Comprehensive ability for complex problems。" Han Yingyan said。
Han Yingyan took the lead in organizing the reform of core skills courses for horticulture majors。Photo courtesy of interviewee
Cultivation of students’ love for farmers by setting an example
"Only for rural areas、Agriculture、Farmers are full of enthusiasm，Students can truly devote themselves to this career in the future。”In the training of agricultural talents，What Han Yingyan values most is the cultivation of love for farmers，I have never given up on seeking various ways to cultivate students’ love for farmers。
Teaching reform not only improves students’ practical ability，Consolidated professional foundation，More importantly，He helped students establish the professional spirit and feelings of “learning from farmers and loving farmers” as soon as they entered school。
“Can see it，Students’ interest in this major has greatly increased。" Han Yingyan said。Related statistics show，After the teaching reform，Sign up for summer social practice，Willing to go deep into the countryside、The number of students who understand the current situation of agriculture has increased significantly，Students are determined to use professional knowledge to help agricultural development when they graduate，The postgraduate entrance examination rate of this major has increased from 20% to more than 60%。
In addition to starting from curriculum reform to increase students’ emotions towards agriculture，Han Yingyan believes that it is important for teachers to take the lead in setting an example，Use your words and deeds to inspire students。
July 2022，Follow Beijing to implement the capital’s talent development strategy、The "Talent Beijing Suburban Tour" project implemented by the organization to promote the integrated and coordinated development of urban and rural talents，Han Yingyan went to the countryside to take a temporary job，Selected to go to Changping Agricultural and Rural Affairs Bureau for training，Meeting a new challenge in her career here。
During temporary employment，An important task of Han Yingyan is，Planting crops on terraces，Building an agricultural, cultural and tourism integration project，Improve economic benefits in rural areas，Ensuring viewing pleasure，We must also consider the practicality of crops，This task is not simple。
Here，Han Yingyan faced difficulties and setbacks she had never encountered before，Surrounded by all kinds of uncertainties。Low emergence rate of quinoa、Lack of water、Time is running out、Funds are tight、Time is running out、Extreme weather effects...one year of temporary job experience，Facing various unexpected problems，Han Yingyan’s heart is strong enough，She did not choose to escape，But face challenges bravely，With the efforts of Han Yingyan and the full cooperation of the villagers，Finally achieve "passing through difficult passes"。
"As a people's teacher，The main responsibility is to teach and educate people，Doing scientific research is also to better train students，Use higher scientific research level，To improve the quality of teaching and educating bet365 online sports betting mobilepeople。”Engaged in education for more than 20 years，Han Yingyan was rated as an outstanding teaching manager in Beijing universities，Won the title of Outstanding Instructor for the Outstanding Undergraduate Graduation Project (Thesis) of Beijing General Universities 2 times，The post-disaster reconstruction commando team formed by the students was selected as the "Beijing Youth Commando Team"。
“Be meticulous when doing scientific research，Be strict with students and treat them with love、With heart and affection。”This is the creed that Han Yingyan has always adhered to。For her，The happiest moment is seeing the growth of students。“See and hear their achievements，Happier than my own achievement。Watch them grow day by day，I feel extremely happy。" Han Yingyan said。
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