Micro-irrigation techniques like drip irrigation are promoted in Tamil Nadu to:

The correct answer is: d) All of the above

Micro-irrigation techniques like drip irrigation are promoted in Tamil Nadu to:

• Improve water-use efficiency: Drip irrigation is a more efficient way to water crops than traditional methods like flood irrigation. It delivers water directly to the roots of the plants, where it is most needed, and reduces evaporation and runoff.
• Reduce wastage: Drip irrigation also helps to reduce water wastage. It is estimated that drip irrigation can save up to 50% of water compared to traditional methods.
• Cultivate water-intensive crops: Drip irrigation can also be used to cultivate water-intensive crops, such as rice and sugarcane. This is because it allows farmers to apply water more precisely, which helps to prevent waterlogging and soil erosion.

In addition, drip irrigation can also help to improve crop yields and quality. This is because it provides plants with a more consistent supply of water, which helps them to grow more vigorously and produce higher-quality fruits and vegetables.

Overall, drip irrigation is a valuable tool for farmers in Tamil Nadu. It can help to improve water-use efficiency, reduce wastage, and cultivate water-intensive crops. It can also help to improve crop yields and quality.