Climate change is a global issue. With the continual intensification of the greenhouse effect, people begin to consider whether the emissions of greenhouse gases caused by various industries can be controlled. In the agricultural production and life, the greenhouse gas produced is a complicated process. The organic matter in the soil is decomposed by microorganisms and released into the atmosphere in the form of carbon dioxide. CH can be produced by fermentation in flooded farmland in the period, and more than half of the world's N,0 comes from soil nitrification and denitrification. process. For this reason, in the agricultural production, the application of agricultural environmental monitoring instrument is very important.
Through monitoring and analysis of agricultural environmental monitoring instruments, it was found that agricultural greenhouse gas emissions mainly include the following aspects: forest reduction caused by agriculture and animal husbandry; feeding of anti-animal animals such as cattle, sheep, camels, etc., in which feed is fermented in its intestines Cause CH, emissions; planting rice, due to the time of the soil flooding, the formation of helium oxygen conditions, the production and emission of CH,;; farmland excessive application of nitrogen fertilizer, resulting in soil N, 0 emissions; livestock manure treatment process can also cause CH ,, And N, 0 emissions and biomass burning.
Soil testing and formula fertilization can increase nitrogen use efficiency and avoid N,0 emissions from farmland caused by excessive fertilization. Soil testing and formula fertilization is the development direction of scientific fertilization in the world today, and it is also the main technology of scientific fertilization in China. Through a reasonable ratio of nutrients and fertilizers, changing the table to deep application, organic fertilizer and chemical fertilizer can increase the nitrogen fertilizer utilization rate. If the nitrogen fertilizer utilization rate is increased from 20% to 30% to 30% - 40% r, Corresponds to a 10% reduction in N,0 emissions.
According to the monitoring summary of the agricultural environmental monitoring instrument in the agricultural production process, the use of slow-release fertilizers and effluent fertilizers can reduce farmland N,0 emissions. Hydrocarbon t} and urea are the main fertilizers in agriculture, but their fertility is short, volatilization losses are large, and nitrogen utilization is low. Compared with the application of ordinary carbon dioxide t} and urea, the effect of sodium bicarbonate and urea can significantly reduce N, 0 emissions [6j. Relevant studies have found that the effect of sodium bicarbonate is 74% less N,0 than that of bicarbonate, 78% lower than that of urea; slower release of urea is 62% lower than that of urea, 0, and 54% less than bicarbonate.
Through monitoring and analysis of agricultural environmental monitoring instruments, it was found that agricultural greenhouse gas emissions mainly include the following aspects: forest reduction caused by agriculture and animal husbandry; feeding of anti-animal animals such as cattle, sheep, camels, etc., in which feed is fermented in its intestines Cause CH, emissions; planting rice, due to the time of the soil flooding, the formation of helium oxygen conditions, the production and emission of CH,;; farmland excessive application of nitrogen fertilizer, resulting in soil N, 0 emissions; livestock manure treatment process can also cause CH ,, And N, 0 emissions and biomass burning.
Soil testing and formula fertilization can increase nitrogen use efficiency and avoid N,0 emissions from farmland caused by excessive fertilization. Soil testing and formula fertilization is the development direction of scientific fertilization in the world today, and it is also the main technology of scientific fertilization in China. Through a reasonable ratio of nutrients and fertilizers, changing the table to deep application, organic fertilizer and chemical fertilizer can increase the nitrogen fertilizer utilization rate. If the nitrogen fertilizer utilization rate is increased from 20% to 30% to 30% - 40% r, Corresponds to a 10% reduction in N,0 emissions.
According to the monitoring summary of the agricultural environmental monitoring instrument in the agricultural production process, the use of slow-release fertilizers and effluent fertilizers can reduce farmland N,0 emissions. Hydrocarbon t} and urea are the main fertilizers in agriculture, but their fertility is short, volatilization losses are large, and nitrogen utilization is low. Compared with the application of ordinary carbon dioxide t} and urea, the effect of sodium bicarbonate and urea can significantly reduce N, 0 emissions [6j. Relevant studies have found that the effect of sodium bicarbonate is 74% less N,0 than that of bicarbonate, 78% lower than that of urea; slower release of urea is 62% lower than that of urea, 0, and 54% less than bicarbonate.
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