Question

Which of the following is not true for fertilisers?

• A. They increase the yield.
• B. Their excessive use disturbs the balance of nutrients in soil.
• C. They are generally used in small quantities.
• D. They are environmentally friendly.

Answer 1

The correct option is D

They are environmentally friendly.

The correct option is D.

Explanation for the correct option:

Option D:

1. Fertilizer is a natural or synthetic substance with chemical components that enhance plant growth and productivity.
2. Fertilizers may either restore chemical elements that previous crops removed from the soil or increase the land's inherent fertility.
3. Chemicals called "fertilizers" are applied to crops to boost productivity.
4. Farmers utilize these regularly to boost crop productivity.
5. The fertilizers include nitrogen, potassium, and phosphorus, which are crucial elements that plants need.
6. By-products of the fertilizer industry include pesticides and a few chemical fertilizers.
7. Since they cannot biodegrade, they accumulate at every trophic level.
8. These combine with water and dirt.
9. From there, together with water and minerals, these insecticides are absorbed by the developing plants.

Explanations for the incorrect options:

Option A:

1. Applying high-efficiency organic fertilizers can help both long-term food security and environmental protection since they can boost crop yield without deteriorating soil quality.
2. Fertilizers give plants the nutrients potassium, phosphorus, and nitrogen so they can grow larger, more quickly, and generate more food.
3. Every living thing on Earth needs nutrients to develop, but nitrogen in particular is crucial.

Option B:

1. The plants are harmed by excessive fertilizer application, which also lowers soil fertility.
2. Eutrophication results from fertilizers reaching rivers through leaching.
3. Long-term use decreases microbial activity and alters soil pH.

Option C:

1. Fertilizers contain concentrated amounts of nutrients, so it is important to calculate how much should be applied to a specific area of the soil or a specific number of crops.
2. Because using too much fertilizer can cause the crops to die, it is only used in modest amounts.

The final answer: "They are environmentally friendly" is not true for fertilizers.