What is the main reason to conduct a soil test before implementing an irrigation system?

Conducting a soil test before implementing an irrigation system is essential primarily to determine nutrient levels, pH, and soil texture. This information is critical because it helps to understand the current health and quality of the soil, which in turn influences water management practices.

A soil test provides insights into how well nutrients are available to plants and whether the soil is acidic, neutral, or alkaline, which affects nutrient availability. Additionally, understanding the soil texture—whether it's sandy, loamy, or clay-heavy—can guide decisions on how irrigation systems should be designed and operated. Different soil types have varying water retention capacities and drainage characteristics, which significantly affect irrigation needs and methods.

This foundational knowledge helps ensure that the irrigation system is tailored appropriately to the specific needs of the plants and the soil, leading to more effective water usage and healthier plant growth.