To reduce the burden, for grain increase!Scientific research personnel “consultation” black soil granary

2022-04-29 0 By

As the snow creaks under foot, Liu Huanjun, a researcher at the Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, is leading a research team to inspect the land in the third management area, making preparations for the upcoming scientific experiments and technology demonstrations.”I need 8 ponds for straw experiment” “I need 10 mu for water saving, fertilizer saving and medicine saving, and 100 mu for experiment demonstration”…Zhang Guojun, director of friendship Farm agricultural Technology Promotion Center of Beidahuang Group Co., LTD., who came to the scene with the request of the experts, readily agreed: “No problem, which piece of land you see, we are responsible for coordination and full cooperation.””In recent years, people have come to realize that the protection of black land is the same as that of livestock. The land is only allowed to work, not to graze and not to rest.But what we did was piecemeal, and we needed the full technical support of the experts.”Zhang Guojun told reporters.On one side are fields of newly planted rice and on the other are fields being repaired.The Chinese Academy of Sciences (CAS), along with Heilongjiang, Jilin, Liaoning and Inner Mongolia, has launched a scientific and technological competition on “black soil Granary” in northeast China, aiming at serious black land degradation and overdraft that threaten China’s food and ecological security.Liu Huanjun is in charge of scientific research projects at The Sanjiang Demonstration Zone in Heilongjiang Province.”The cultivated land area of Sanjiang Plain is nearly 100 million mu, and the temperature, topography and soil types of different regions vary greatly. Therefore, the protection of black land must be tailored to local conditions.In Liu Huanjun’s opinion, black land is a system more complex than human body. When conducting research in beidahuang Group’s farm demonstration sites, he would show it to local agricultural technicians with the help of graphic courseware and repeatedly convey one idea:”At present, the protection of black land should not be discussed in terms of soil and agriculture, nor should it be put into the overall ecological and geographical system and considered from the overall pattern of mountains, rivers, forests, fields, lakes and grass.”This time, Liu Huanjun led a “mixed team”, with 29 participating units from scientific research institutes, universities and enterprises across the country, involving agricultural machinery, plant nutrition, plant protection, ecological environment, geographic information system, remote sensing, meteorology, software development and other disciplines.After taking over the project in 2021, Liu Huanjun led his team to conduct a comprehensive survey of farms in the Sanjiang Plain, and problems emerged one by one: “High consumption of water resources, decreased soil tillage, and low level of intelligence.”Dark brown soil, meadow soil, white clay soil, black soil…In an office in the Friendship Headquarters of the Sanjiang Demonstration zone, samples of soil types at different depths collected by the team are displayed.”Like this kind of white clay soil, sanjiang Plain has more than 21 million mu, the black soil layer is very thin, the soil is hard, flat, thin, white clay layer is impervious to water, resulting in farmland ‘hard in drought, wet in flood’, low yield and unstable.”Wang Yiang, a member of the team, picked up one of the samples and explained, “At present, according to the traditional black land protection method, when digging deep, it is easy to turn over the white pulp layer, forming a very large lump on the surface, and it is difficult to emerge after sowing.”Improving the quality of white clay is a key part of this research, which will not only protect farmland but also greatly increase grain productivity.”Xinhua Farm in Heilongjiang is ploughing the black land.Xinhua News Agency said, “After spring ploughing, we will collect and accumulate basic data in different plots of land, so as to understand exactly where the farmland is thinning, thinning and hardening, and then analyze the causes and propose personalized treatment plans through multidisciplinary consultation.”Liu Huanjun image metaphor.”Although the time limit of the project is five years, the protection of black land is a tough and protracted battle, which requires generations of researchers to take root in the land.”‘I was born in a rural area of Heilongjiang province and was raised by the black land of my hometown,’ Mr. Liu said. ‘It’s time to do something to give back to the black land.’Under the white snow, the black land is recuperating for the spring ploughing of the New Year.(Reporter Zhang Shiying) Source: Guangming Daily (February 10, 2022, 1st edition) Photo: Xinhua News Agency, Heilongjiang Daily