Routine pressures for agricultural hoses can vary based on specific agricultural needs and water source conditions, but are typically between 20 and 100 PSI (pounds per square inch). Here are some examples of common agricultural hose pressure ranges and their uses:

1. 20-40 PSI: This range of pressure is typically used in drip irrigation systems or sprinkler irrigation systems where low pressure is needed to supply water to plants slowly and evenly.

2. 40-60 PSI: This is a medium pressure suitable for many agricultural hose applications including sprinkler irrigation, sprinkling and irrigating crops.

3. 60-80 PSI: This range of pressure is suitable for some applications that require more pressure, such as flushing equipment, cleaning farm equipment, or providing power jetting.

4. 80-100 PSI: This is the higher pressure range and is typically used for tasks that require more powerful flow, such as deep well pumps or high-pressure cleaning systems.

Please note that the exact farm hose pressure depends on many factors, including system design, elevation differences in water sources, pipe length and diameter, etc. To ensure efficient irrigation and agricultural operations, it is recommended to adjust the pressure on a case-by-case basis and use a suitable pressure regulating valve to maintain the required pressure levels. Additionally, water conservation and energy efficiency need to be considered to ensure the sustainability of the system.