![]() ![]() Microbiologists at the University of Alberta in Canada and the University of Vienna in Austria may have discovered another solution. Another step would be to use slow-release fertilizers that have plastic coatings on them and, instead of releasing the nitrogen right away, the release of nitrogen occurs gradually throughout the growing season, "trying to match the nitrogen release from the plastic coated fertilizer with the needs of the plant," he said. "The idea would be to try to eliminate the use of these commercial fertilizers and instead use organic waste," for instance, animal waste, he said. Dahlgren, a professor of soil science at University of California, Davis. ![]() One of the solutions to the issue of excessive nitrogen lies in sustainable agriculture, organic farming and raising the awareness of these environmental issues among farmers, according to Randy A. Environmental Protection Agency (EPA), nutrient pollution caused by excess nitrogen and phosphorus in the air and water, is one of the most widespread, costly and challenging environmental problems. However, the excessive use of those fertilizers in agriculture has had devastating consequences for the environment and human health, as it has contributed to the pollution of groundwater and surface waters. In an effort to make crops grow faster, people use nitrogen in fertilizers. Bacteria convert the waste nitrogen back to nitrogen gas, which returns to the atmosphere. Nitrogen compounds return to the soil through animal waste. Then animals eat the plants and consume the protein. Other bacteria convert the ammonia into amino acids and proteins. During the cycle, bacteria in the soil process or "fix" atmospheric nitrogen into ammonia, which plants need in order to grow. The nitrogen cycle, in which atmospheric nitrogen is converted into different organic compounds, is one the most crucial natural processes to sustain living organisms. ![]()
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