Many people think that carbon dioxide as the culprit causing the greenhouse effect is a useless harmful exhaust emissions. Institute, Chinese Academy of Soil and Water Conservation, fertilizer expert Dr. Xu Fuli recently told reporters that carbon dioxide is actually a large scale for agricultural production of fertilizer, the state should actively support the development of carbon dioxide as raw material, "carbon-based fertilizer," thereby drastically reducing the carbon dioxide, to achieve the development of low agricultural purposes.
The composition of elements in plants, carbon, hydrogen, oxygen accounts for about three kinds of elements of more than 95%, nitrogen, phosphorus, potassium and other elements of dozens of kinds of about 5%. Recognized the world necessary for plant growth nutrients are carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, boron, manganese, copper, zinc, molybdenum, chlorine and other dozens. German scholars since 1840 to create theories to the mineral nutrition of plants since the birth of chemical fertilizers, it is focused only on nitrogen, phosphorus, potash and other mineral fertilizer application, ignoring the carbon, hydrogen, oxygen supply of nutrients that plants can from the air and water to obtain sufficient quantities of carbon, hydrogen, oxygen, without going through the supply of chemical fertilizers. This misunderstanding, which make fertilizer industry that no one involved in the development of carbon dioxide as raw material, fertilizer, a large number of carbon dioxide is also due to the greenhouse effect is not reasonable application to become a "culprit."
Dr. Xu Fuli told reporters that carbon dioxide is a valuable agricultural fertilizer. Plants absorb carbon dioxide and water into glucose through photosynthesis is the basis for their lives. Carbon as a form of plant nutrient uptake is mainly carbon dioxide and bicarbonate anion, oxygen, hydrogen as a form of plant nutrient uptake is mainly water, so the carbon (carbon dioxide) elements and hydrogen and oxygen elements (water) should be the balance of plant nutritional balance. Hydrolysis product of photosynthesis of glucose into organic acids, through the fixed ammonium nitrogen into amino acids, and further converted into protein, such a process of carbon (including oxygen, hydrogen) and the nitrogen balance of the principal contradiction of plant nutrition. The so-called nitrogen, phosphorus and potassium balance of three elements, only the principal contradiction of plant mineral nutrition, but not the principal contradiction of plant nutrition, but because of carbon, oxygen, hydrogen three major nutrients is not measured, that has caused people's understanding of in error.
Xu and Welfare said that experiments show that the atmospheric concentration of carbon dioxide is about 300PPm, and when concentrations of carbon dioxide within a greenhouse in the atmosphere is greater than 2-3 times, most vegetable production can increase one fold. Sufficient concentration of carbon dioxide allows for early listing of vegetables, reduce pesticide use, inhibit nitrate denitrification to improve the quality of crops. Therefore, the use of carbon dioxide develop "carbon-based fertilizer," is entirely feasible, it can not only increase crop yield, but also significantly reduce carbon dioxide, to the development of low agricultural purposes.
Xu welfare point of view has been many agricultural experts agree that some agricultural experts have begun to carry out in practice difficult to explore. China is now more successful is the well-known agricultural expert Liu Shaanxi Province has, ZHUO Ze where the two held a "carbon-based fertilizer," test, they started their studies in 2000, has now successfully completed the task of the laboratory phase.
Shaanxi Provincial Agriculture Department Director Yu Jianbo science and technology education, told reporters, "carbon-based fertilizer," It's a good thing, but to really put into production in the future also need to coordinate and support national authorities develop. Xu suggested that the welfare state can be modeled on the financial subsidy to farmers to buy plastic film method, the "carbon-based fertilizer," This can significantly reduce carbon dioxide environmental fertilizers were also financial subsidies. At the same time rely on government forces, active guidance, publicity and promotion, "carbon-based fertilizer," so that China's agricultural fertilizer application as soon as possible out of the way to a low carbon economy. (Hai-Feng Mao)