"The warm spring breeze fills Changshan，Peony, gastrodia and peony；Yuanzhi went to find the gentleman，Why should Angelica look for Zelan..." For some children in Beijing Changping No. 2 Middle School，This summer vacation is a bit special，As a junior、High school students，Have the opportunity to enter the university campus，Under the guidance of young researchers in key laboratories，Explore the mysteries of agricultural science up close。
The children are divided into four groups，Led and guided by four associate professors，Will complete a research project during the summer vacation。The topics are: the transformation and formation mechanism of melon-type cotton aphid and cotton-type cotton aphid、Development of wearable disinfection equipment for animals、The effect of high temperature on the germination of different varieties of lettuce、Study on the Effect of Spraying Photosynthetic Fertilizer on the Strengthening of Pepper Seedlings。
It is reported，Changping District Science and Technology Association and Changping District Education Committee jointly implement the "Tomorrow's Little Scientists" program，Invite universities to cooperate in establishing a training base，Targeting primary and secondary school students in Changping District，With the help of university science and technology resources，Smooth connection channel between large and medium-sized enterprises，Inspire young people’s passion for innovation，Helping early talent cultivation。Beijing Agricultural College is one of the "Tomorrow's Little Scientists" training bases awarded by the program。
As the only agriculture and forestry undergraduate college in Beijing，Beijing Agricultural College based on its own advantages and characteristics，Actively open various types of agricultural labor education to primary and secondary schools、Popular science education resources and courses，Inheriting farming civilization，Inspire young people’s scientific creativity。
Junior high school students are sowing lettuce in the laboratory of Beijing Agricultural College。Photo courtesy of interviewee
Young scientific researchers personally lead teams for exchange and training
“Many families in Beijing are raising cats and dogs，There are still some stray animals in many schools and communities，From a public health perspective，Combined with my profession of veterinary medicine，I hope to lead children to develop wearable disinfection equipment for small animals - with antibacterial properties、Anti-Virus、Anti-parasite and tracking collar。" said Liu Xiaoye, associate professor of the Department of Veterinary Pharmacology, Beijing Agricultural University。
She explained，The specialty of Beijing Agricultural College’s veterinary medicine major is the development of Chinese veterinary medicine，Using natural ingredients of traditional Chinese medicine to develop veterinary drugs。Also，She wants a locator inside the collar，“Can carry out real-time detection and tracking of stray animals，Perform refined management。”
Under the guidance of Liu Xiaoye，The team has formed a preliminary research plan，After one training，Team members are busy entering the offline implementation bet365 online sports bettingphase。This topic contains 4 tasks: Query Pharmacopoeia，Screen out antibacterial、Anti-Virus、Effective antiparasitic traditional Chinese medicine and active ingredients of traditional Chinese medicine；Pharmaceutical dosage form design、Designed by combining medicine and traditional Chinese medicine collar；Appearance design and functional design of traditional Chinese medicine collar；Research on the Function of Disinfection Traditional Chinese Medicine Collars。
Except Liu Xiaoye and the first-grade students of Changping No. 2 Middle School，Participants in this project also include some graduate students、Undergraduate student，They each have different divisions of labor，Collaborate with each other in all aspects。
Currently，Junior high school students are in the collar design stage，They want to design the structure of the traditional Chinese medicine collar based on the research results、Appearance and functionality。This week，They are about to enter a critical link - follow Liu Xiaoye into the laboratory，Conduct drug screening experiment，and drug efficacy evaluation experiment，Garlic、Dandelion、Sophora flavescens、Poptis chinensis、Rhubarb...according to different traditional Chinese medicine properties、Chemical composition，And the process of making traditional Chinese medicine collar，Preparation of stable pharmaceutical formulations。
Continue，They want to simulate experiments to design suitable materials for traditional Chinese medicine collars，“The material of the collar is very particular，Cannot stick to hair，Also needs to be malleable，Easy to adjust to the neck shape and size of each small animal。" Liu Xiaoye said。According to plan，The in-collar locator will be completed in early August，The finished collar will be tested at the end of August，Complete user experience evaluation and follow-up visit at the end of September。There will be patent applications in the future、Publish research articles and other work。
Another leading teacher、Associate professor at the School of Plant Science and Technology, Beijing Agricultural University, Liu Chaojie took the first-grade children to do the topic，The effect of high temperature on the germination of different varieties of lettuce。“Seedlings often encounter high temperatures in summer，The germination rate of lettuce is relatively low under high temperatures。We want to screen some varieties suitable for planting under high temperature conditions，Better meet the needs of seasonal vegetable planting in Beijing。
"Children may know what conditions are needed for seed germination in primary school，But，What are the specific effects of different conditions on germination，They may not have thought about it in depth。So we designed a small experiment to address this problem。"Reporter learned，The overall plan is personally controlled by Liu Chaojie，“It is necessary to combine the knowledge reserve and acceptance of children of this age，Do not design overly complex physiological and biochemical experiments，To avoid difficulties for students to understand。”
Open key laboratories to primary and secondary school students
“So many aphids！”“Aphids on cotton leaves refuse to eat watermelon leaves，Aphids on watermelon leaves would rather starve to death than eat cotton leaves，Really，Why is this？”Children from another group came to Beijing Agricultural College for the first time，Did not enter the laboratory directly，Instead, he was brought to the teaching practice base for observation by Guo Honggang, associate professor of the School of Biology and Resource Environment of Beijing Agricultural University，bet365 online sports betting liveThe natural ecology here is an eye-opener for children。
Guo Honggang (first from left) tells students about pest hazards at the teaching practice base。Photo courtesy of interviewee
“The base visually demonstrates the damage caused by melon-type cotton aphid in the field、Hazardous Characteristics，And the extent of the damage caused。"Introduced by Guo Honggang，This base is for school and college construction，A place for teaching practice。“We want to study pests，So I planted my own land，Deliberately not using any pest control measures，Let crops grow naturally，There will be all kinds of bugs inside。To study the difference between melon-type cotton aphid and cotton-type cotton aphid，We specially planted a piece of watermelon，The density of bugs here is relatively high，Watermelon growth is also relatively poor。”
The "confused behavior" of the two aphids in the children's mouth is the subject of their research this time - the formation mechanism of host specialization of melon-type cotton aphid and cotton-type cotton aphid，The research focuses on pest control，Guo Honggang explains，Study clearly the influencing factors and mechanisms behind it，Can be based on the common points or differences between the two aphids，To design targeted targets，Promote green control of cotton aphids and green planting of crops。
Their first job is，Complete the transfer experiment of two kinds of aphids。Next，To explore the reasons why aphids “would rather starve to death than eat”，The children first extracted DNA from aphids，Distinguishing two specialized cotton aphids through mitochondrial gene comparison，Then pass the melon shape、Cotton type cotton aphids exchange hosts respectively，After observing host conversion，melon shape、Growth and development of cotton-type cotton aphid。
The experimental operation of DNA extraction is not difficult for the students。Introduced by Guo Honggang，In fact, children have already learned relevant basic knowledge in biology class，Have a certain knowledge reserve，This time we enter the laboratory for hands-on operation，Before the experiment，The teacher explained the extraction principle in detail、Standardization process、Instrument use，And precautions, etc.，And try to extract it under the guidance of teachers and graduate students。“After this series of operations，Children are basically more proficient，The overall progress is relatively smooth。”
These are conducted in the "North China State Key Laboratory of Urban Agriculture of the Ministry of Agriculture and Rural Affairs" of Beijing Agricultural College。Fluorescence inverted microscope、Quantitative PCR instrument、High-pressure liquid chromatography (HPLC)...these are some high-precision instruments that may be used during the experiment。These expensive instruments give children a full experience，Guo Honggang led the children to experience and teach the uses and principles of the instruments one by one。
Students conduct molecular biology experiments in the laboratory。Photo courtesy of interviewee
“The biggest difference between university campuses and primary and secondary school campuses，Not in the classroom、dormitory，There are more in the laboratory，These laboratories are the ‘cradle’ of scientific research。" Liu Chaojie said。He took the team members to visit the school’s vegetables、Fruit trees、Flowers and other laboratories，Understand the research direction of each laboratory。
Wearable disinfection equipment project led by Liu Xiaoye，relies on the Beijing Key Laboratory of Veterinary Medicine (Traditional Chinese Medicine) to carry out research。This is the first provincial bet365 live casino reviewino blackjackand municipal key laboratory in China that mainly conducts research on traditional Chinese and veterinary medicine，The total value of existing instruments and equipment is approximately more than 10 million yuan，Including NMR instrument、Chip spotter、Laser Doppler blood flow meter、Magnetic Bead Sorting and Purification Instrument、Thin layer chromatograph、Drug extraction and concentration equipment、Traditional Chinese medicine preparation equipment and a large number of professional scientific research instruments。
The organic integration of agricultural education and scientific research
“Let children know what agriculture is、What is agriculture doing？Agriculture can be an abstract scientific research，It can also be a matter of hard work in actual production。" Guo Honggang said。
He brought the children to the practice base，Experience the state of completely natural growth of crops without any green prevention and control conditions，"This combines our topics，Also combined with the needs of teaching，Integrate agricultural education and scientific research。”
“Scientific research comes from production，It must be higher than production，Back to production。" Guo Honggang said，Take the children to the practice base first，Back to the laboratory，In fact, I hope to make them feel it，How to turn problems in the fields into scientific research topics，Then how the results of scientific research feed back into field production。“When I led the children to design a project plan，I also hope to complete such a closed loop。”
“For children in today’s cities，Agriculture may be far away。actually，Agriculture in Changping、They are all very important in Beijing。" Liu Chaojie told reporters。He is in the process of leading the team，Trying to get kids to know as much as possible、Experience agriculture，Let them have a basic understanding of agriculture、Correct understanding。"These experiences and attempts，It may affect their future career choices。”
At the same time，Liu Chaojie is very concerned about the cultivation of scientific thinking in children。"How to evaluate the quality of seed germination？Good and Bad，These are very subjective evaluations，Science requires data support - such as germination rate、Bacon length、Growth，At the same time，These indicators need to be obtained using scientific measurement methods。”
Liu Xiaoye also emphasized the key role of experimental data in the project。“We selected some parts from the Veterinary Pharmacopoeia for experiments，To test which medicine works，What dose is needed to produce good results？The effectiveness of drugs must be based on data，For example，What is the antibacterial rate、What is the insect resistance rate，To conduct drug efficacy and dose relationship curve experiments。”
Therefore，Liu Xiaoye when designing the project plan，Leave a lot of room for operation for first-year junior high school students。“If you design them well from beginning to end，It also loses the meaning of scientific verification，It also violates the original intention of scientific research。Children’s scientific thinking is developed in this process。”
“We have a saying called ‘One world one health’，Animal health and human health are closely related，We hope to proceed from a public welfare perspective as much as possible，Let children deepen their understanding of public health conditions。At the same time，Let them have a deeper understanding of the veterinary profession。”
actually，These topics are not far away from junior high school students，But it is closely related to every subject they study daily。"If children bet365 online sports betting livewant to use good medicine in the future，Be sure to learn chemistry well，Otherwise, we don’t know what reaction the two compounds will have；We must learn mathematics well，Otherwise, we can’t even calculate the drug concentration；Also，Need to treat small animals，You must know the knowledge of biology；Final report writing，You need to have Chinese language skills、Writing ability..." Liu Xiaoye said，I hope the children will finish the project，Back to class，It is very useful to understand the knowledge in textbooks。
Introduced by Sun Xi, deputy dean of the School of Innovation and Entrepreneurship of Beijing Agricultural University，Beijing Agricultural College makes full use of disciplines、Professional advantages，Join hands with Beijing Agricultural College Science and Technology Association，Organize teachers，Open Lab，Provide venue，Opening courses，Labor education has been carried out for primary and secondary schools、Popular Science Course，Served more than 50,000 people。The school has successively become the primary and secondary labor education base of the Beijing Municipal Education Commission’s “Three Rong and One Industry” program、“Beijing Junior High School Open Scientific Practice Activities” resource unit、Changping District Social Classroom Resource Unit、Haidian District Labor Education Base, etc.。
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