Final answer:
Landscaping that reduces the need for frequent irrigation is achieved through the use of drought-resistant plants, soil amendments, and efficient irrigation methods. These practices help conserve water, avoid soil issues like salinization, and are part of sustainable agriculture efforts.
Step-by-step explanation:
The landscaping method that makes routine irrigation unnecessary is known as xeriscaping or drought-resistant landscaping. This method relies on the use of drought-adaptive and low-water plants, soil amendments such as compost and mulches, and efficient irrigation techniques like drip irrigation to reduce water usage and preserve moisture. These practices help to prevent unnecessary water loss, avoid soil salinization, and promote sustainable agriculture, especially in dry climates or areas with limited water resources.
Additionally, strategies such as planting vegetation with short life cycles that quickly reproduce after rainfall, using no-till methods to minimize soil disturbance and evaporation, and methods like fertigation, which combines fertilization with irrigation, are integral to water conservation. Countries like Israel have adopted advanced techniques like covering banana groves to reduce transpiration and maximize water efficiency in agriculture.