Promoting micro-irrigation techniques like drip and sprinkler irrigation can help:

The correct answer is: d) All of the above.

Micro-irrigation techniques like drip and sprinkler irrigation can help to improve water-use efficiency, conserve water resources, and increase crop yields.

• Improve water-use efficiency: Micro-irrigation techniques deliver water directly to the root zone of plants, which reduces evaporation and runoff. This can lead to significant water savings, especially in areas with limited water resources.
• Conserve water resources: Micro-irrigation techniques can also help to conserve water resources by reducing the amount of water that is lost to evaporation and runoff. This is especially important in areas where water is scarce.
• Increase crop yields: Micro-irrigation techniques can also help to increase crop yields by providing plants with the water they need when they need it. This can lead to higher yields and better quality crops.

In addition, micro-irrigation techniques can also help to reduce soil erosion, improve soil health, and reduce the use of pesticides and herbicides.