Chinese scientists suggest recycling carbon dioxide as fertilizer to develop low-carbon agriculture

Xinhua Xian December 18 Many people think carbon dioxide as a greenhouse effect of the transgressions, is a harmful waste gas.　　Dr. Xu Fuli, a researcher and fertilizer expert at the Institute of Soil and Water conservation of the Chinese Academy of Sciences, said that carbon dioxide is really a kind of fertilizer that can be used for agricultural production, the State should actively support the development of carbon dioxide as the raw material of "carbon-based fertilizers", thereby significantly reducing carbon dioxide, to develop Low-carbon In plant elements, carbon, hydrogen, oxygen 3 elements accounted for more than 95%, nitrogen, phosphorus, potassium and other dozens of elements accounted for 5%. At present, there are dozens of kinds of nutrient elements in plant growth, such as carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, boron, manganese, copper, zinc, molybdenum and chlorine. Since 1840, German scholars have created plant mineral nutrition. People only pay attention to the application of nitrogen fertilizer, phosphate fertilizer, potash fertilizer and other fertilizers, ignoring the supply of carbon, hydrogen and oxygen nutrients, so that plants can get enough carbon, hydrogen and oxygen from air and water without the supply of chemical fertilizers.　　This familiar misunderstanding makes the fertilizer industry no one involved in carbon dioxide as a raw material for the development of fertilizers, a large number of carbon dioxide also due to not be fair application became the "transgressions" of the greenhouse effect. ' Carbon dioxide is a valuable agricultural fertilizer, ' Dr. Xu Fuli told reporters. Plants absorb carbon dioxide and water and convert them to glucose through photosynthesis as the basis of their lives. Carbon as the absorption form of plant nutrients is mainly carbon dioxide and hydrogen carbonate anion, oxygen, hydrogen as plant nutrients absorption form is mainly water, so carbon (carbon dioxide) elements and hydrogen, oxygen element (water) balance should be the basis of plant nutrition balance. The equilibrium of carbon (including oxygen, hydrogen) and nitrogen is the principal contradiction of plant nutrition, which is transformed into amino acids by immobilized ammonium nitrogen and converted into proteins by hydrolysis of the products of photosynthesis.　　The so-called balance of nitrogen, phosphorus and potassium can only be the main contradiction of plant mineral nutrition, but not the principal contradiction of plant nutrition, only because the three major nutrients of carbon, oxygen and hydrogen have not been measured, it has caused people to be familiar with the misunderstanding. Xu Fuli said the experiment showed that the carbon dioxide concentration in the atmosphere is about 300PPm, and most vegetable production can improve 1 time times when the greenhouse carbon dioxide concentration is greater than 2-3 times in the atmosphere. Sufficient carbon dioxide concentration can make vegetables to be listed early, reduce pesticide dosage, inhibit nitrate denitrification, improve crop quality.　　Therefore, the use of carbon dioxide to develop "carbon-based fertilizers" is entirely feasible, it can not only improve crop production, but also can significantly reduce carbon dioxide, to develop low-carbon agriculture. Xu Fuli's views have been recognized by many agricultural experts, and some agricultural experts have begun to make difficult explorations in practice. Now more successful in the country is the Shaanxi province, a famous agricultural experts Liu Changyou, Chao Zefan two "carbon-based fertilizer" test, they started in 2000, has successfully completed the laboratory phase of the task。 Shaanxi Agriculture Department of Science and Technology Education Department director Jiang Jianbo told reporters, "carbon-based fertilizer" is really a good thing, but to really put into production, the future needs of the relevant parts of the country to coordinate and support development. Xu Fuli suggested that the state can imitate the farmers to buy plastic film subsidies to the method of "carbon-based fertilizers" this can significantly reduce carbon dioxide environmental fertilizer also subsidies. At the same time, relying on the government's strength to actively guide, promote and promote the "carbon-based fertilizers", so that China's agriculture in the application of fertilizer as soon as possible to come out of a low-carbon economy path.