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The Effect Of Fertilisers On The Environment. The use of fertilisers and their effect on the environment is a much-debated issue. There are positive and negative effects which must be considered throughout this essay. It is difficult to say which argument outweighs the other, and whether usage should be continued, abolished or more heavily controlled. 'Fertilisers are chemicals given to plants with the intention of promoting growth; they are applied either via the soil or by foliar spraying' (Wikipedia, 2005). Varying proportions of the three major plant nutrients, nitrogen, phosphorus and potassium are used as well as other chemicals in inorganic fertilisers. Organic fertilisers can be used to 'improve the production of new biomass in ... ecosystems' (Fullick, 2000). Manure was once the most popular fertiliser, as 'many UK and US a farmer's were 'mixed' farmers' (Fullick, 2000) producing livestock and crops, and is still a predominant organic fertiliser. 'Crop rotation' (Fullick,...

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