What is can fertiliser?

Fertilizers are substances that are used to improve soil fertility and increase plant growth and yield. They provide essential nutrients such as nitrogen, phosphorus, and potassium to plants, which are often lacking in soil. Fertilizers can be either organic or inorganic. Organic fertilizers are derived from animal or plant waste, while inorganic fertilizers are chemically produced. Common inorganic fertilizers include nitrogen-based fertilizers like urea, ammonium nitrate, and ammonium sulfate, phosphorus-based fertilizers like superphosphate and triple superphosphate, and potassium-based fertilizers like potassium chloride.

Fertilizers are typically applied in granular form by spreading them evenly over the soil surface near the roots of plants, or by dissolution in water and applying as a liquid. The amount of fertilizer needed depends on the soil type, plant species, and growth stage, among other factors. Overuse of fertilizers can lead to contamination of groundwater and soil, as well as negative effects on plant growth. Therefore, it is important to use fertilizers carefully and according to recommended dosages.