Fertilisers are substances that are used to improve the fertility of soil and promote plant growth. There are many different types of fertilisers available, each with their own unique properties and benefits. Some of the most common synonyms for fertilisers include plant food, soil nutrients, growth enhancers, and plant nutrients. Other synonyms include organic matter, composts, manures, and chemical fertilisers. Organic matter and composts are derived from natural sources such as animal waste, leaves, and grass clippings. Manures are also natural fertilisers but they are typically derived from animal waste. Chemical fertilisers, on the other hand, are manufactured using chemicals and are designed to provide specific nutrients to plants.