Fertilisers containing nitrogen as the main nutrient element for plants. Nitrogen is considered the most important form of fertiliser and is taken up directly by plants in the form of nitrate, ammonium and urea. There are limitations on the amount of nitrogen fertiliser that should be used, as high levels of nitrate leaching endanger the […]
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Nitrogen oxides (NOx) are the gaseous oxides of nitrogen. Nitrogen oxides irritate and damage the respiratory system and are responsible for the formation of acid rain.
This chemical substance is better known by its trivial name, laughing gas. The chemical molecular formula is N2O. Nitrous oxide is a greenhouse gas and contributes to global warming. The gas is mainly used as an anaesthetic.
The northern hemisphere is the part of the earth that is north of the equator.
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