Question

Agrochemicals are
A. Chemical products of agriculture
B. Synthetic chemicals employed in agriculture.
C. Chemicals used as pesticides.
D. Chemicals used as fertilisers.

Answer 1

Hint:- Agrochemicals include chemicals such as pesticides, herbicides, fertilizers that are used in the management of ecosystems and agriculture. The application of agrochemicals improves crop yield.

Complete step-by-step solution:- The major challenge in the agriculture field is the management of pests.
-Common diseases in crop plants include- wilting, downy mildew, powdery mildew, tuber
diseases.
-They destroy the crops that decrease the crop yield.
-Some of the common pests that affect the crops are insects, mites, nematodes, gastropods,
mollusks.
-Agrochemicals includes the following:
1. Pesticides: They kill the pests, fungi, and other organisms that destroy the crop.
2. Synthetic fertilizers: they include fertilizers like Ammonium nitrate which improves the crop
yield by providing nutrients to the soil.
3. Acidifiers and liming agents: they help to alter the pH level which makes the soil suitable for
planting crops.
4. Soil conditioners: The area is meant to condition the soil that improves the soil contents.
5. Growth hormones: they increase the growth rate of the crop.
-Agrochemicals are Synthetic chemicals employed in agriculture, option B is correct.

Note:- Due to the excessive usage of agrochemicals in agriculture, it pollutes the soil and decreases soil fertility.
- It may also cause the accumulation of heavy metals like copper, zinc which leads to serious
consequences in the environment.
-The agrochemicals that are used in agriculture may seep into the water bodies and can enter
the food chain causing bioaccumulation.