Which of the following is a common method to conserve water in agriculture?

The choice of irrigation techniques as a common method to conserve water in agriculture is grounded in the various strategies that aim to use water resources more efficiently. Modern irrigation techniques, such as drip irrigation and sprinkler systems, allow for precise application of water directly to the plants’ roots, significantly reducing water loss due to evaporation and runoff. This targeted approach not only conserves water but also enhances plant health and crop yields.

In contrast, options like planting monocultures, using synthetic fertilizers, and implementing high tillage do not contribute to water conservation. Monocultures can lead to increased pest pressures and nutrient depletion, often requiring more water for plant health. Synthetic fertilizers can contribute to nutrient runoff, leading to pollution rather than water conservation. Lastly, high tillage can disrupt soil structure, increasing erosion and surface runoff, which can lead to greater water loss. Therefore, the use of effective irrigation techniques is key to sustainable water management in agricultural practices.