Nitrogen is not only beneficial for crops, it is essential. Without nitrogen, plants would die because the nitrogen is needed by the plants to make chlorophyll that is then used to make food for the plant. Plants cannot directly utilize the nitrogen found in the atmosphere so they must get it either from fertilizers or from biological nitrogen fixation.
In this fixation process, organisms called prokaryotes (microscopic single-celled organisms) utilize an enzyme to help convert nitrogen in the atmosphere to ammonia. Obviously it’s better for plants to get the necessary nitrogen from biological fixation because it’s a natural process. The use of fertilizers has resulted in ecological problems worldwide, such as the formation of coastal dead zones.
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