Water absorption through roots can be increased by keeping the plants in the shade in dim light under the fan covered with a polythene bag

To increase water absorption through roots, follow these steps:

1. Place the plants in a shaded area. This will help prevent excessive evaporation and keep the soil moist for longer periods.

2. Provide dim light to the plants. Direct sunlight can cause water loss through transpiration. By reducing the intensity of light, you can minimize water loss and promote better water absorption.

3. Use a fan to create air movement around the plants. This will help in the process of transpiration, where water is drawn up from the roots to the leaves. The movement of air can enhance the uptake of water by the roots.

4. Cover the plants with a polythene bag. This will create a humid environment around the plants, reducing water loss through evaporation. The increased humidity will encourage the roots to absorb more water from the soil.

By following these steps, you can optimize water absorption through the roots of your plants.