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fertiliser

Primary Information
Secondary Information

Definition

Fertiliser is a substance that is added to soil to improve its fertility. Fertility is the ability of soil to support plant growth.

Fertilisers contain nutrients that plants need to grow healthy and strong. The three main nutrients in fertilisers are nitrogen, phosphorus, and potassium. These nutrients are essential for plant growth.

Nitrogen helps plants make proteins and chlorophyll. Chlorophyll is the green pigment in plants that helps them to capture sunlight. Phosphorus helps plants produce energy and store food. Potassium helps plants regulate water balance and resist disease.

Fertilisers can be applied to soil in many different ways, such as by spreading it on the surface of the soil, mixing it into the soil, or injecting it into the soil.

Fertiliser is an important part of agriculture. It helps to increase crop yields and improve the quality of food.

However, the use of fertiliser can also have negative environmental impacts. Fertilisers can pollute waterways and contribute to climate change. It is important to use fertiliser carefully and responsibly.

How can the word be used?

The store sells a variety of fertilisers, including organic and inorganic fertilisers.

fertiliser

Different forms of the word

Noun: fertiliser, fertiliser.

Verb: fertilise, fertilise.

Adjective: fertilising, fertilising.

Etymology

The word "fertiliser" is derived from the Latin word "fertilis", which means "fruitful" or "productive". The suffix "-iser" is a French-derived suffix that means "one who makes". So, "fertiliser" literally means "one who makes something fruitful or productive".

Question

Why do farmers use fertilisers?

AQA Science Exam Question and Answer

Question:

Explain the role of fertilisers in agriculture and their impact on crop growth. Describe the main types of fertilisers and how they provide essential nutrients to plants. Discuss the environmental considerations associated with fertiliser use and potential consequences on water bodies.

Answer:

Fertilisers play a crucial role in modern agriculture by supplying essential nutrients to plants that may be lacking in the soil. The main types of fertilisers are nitrogen-based, phosphorus-based, and potassium-based. Nitrogen fertilisers promote leafy growth, phosphorus fertilisers aid in root development and flowering, and potassium fertilisers enhance overall plant health.

When applied correctly, fertilisers boost crop yield and improve food production, supporting the needs of a growing population. However, excessive or improper use of fertilisers can lead to environmental issues. Runoff from fields can carry excess nutrients, particularly nitrogen and phosphorus, into water bodies, causing eutrophication. This leads to algal blooms, decreased oxygen levels, and harm to aquatic ecosystems.

Balancing the use of fertilisers to meet crop nutrient requirements while minimising environmental impact is vital for sustainable agriculture and protecting water quality.