How do the spacing and layout design affect micro sprinkler uniformity

ON 04 . Sep . 2023

The spacing and layout design of micro sprinkler systems have a significant impact on the uniformity of water distribution within a field or greenhouse. Proper spacing and layout are essential to ensure that all plants receive adequate irrigation, minimize water wastage, and optimize crop growth.

Spacing between Micro Sprinklers:

Plant Density: The spacing between micro sprinklers should be based on the plant density in the field. Crops with higher plant densities may require closer spacing to ensure adequate coverage.

Crop Type: Different crops have varying water requirements. Consider the specific water needs of the crop when determining the spacing between micro sprinklers.

Nozzle Characteristics: The type and flow rate of the micro sprinkler nozzles influence the spacing. Some nozzles cover a larger area, allowing for wider spacing, while others may require closer spacing for uniform coverage.

Spacing within Rows and Between Rows:

In-Row Spacing: Ensure that the spacing between micro sprinklers within rows is consistent. Uneven spacing within rows can result in over-irrigation in some areas and under-irrigation in others.

Between-Row Spacing: The spacing between rows should also be considered. In some cases, wider between-row spacing may be necessary to accommodate equipment and facilitate access, but this should not compromise irrigation uniformity.

Overlap and Head-to-Head Coverage:

Overlap: Proper overlap of water distribution patterns from adjacent micro sprinklers is essential for uniform coverage. Overlap compensates for variations in water distribution at the edges of each sprinkler's coverage area.

Head-to-Head Coverage: In some cases, designing the system for head-to-head coverage, where one micro sprinkler's coverage area partially overlaps with the adjacent sprinkler's throw, can help improve uniformity.

Topography and Slope:

Slope Adjustment: Adjust the spacing and layout design to account for field or greenhouse slopes. Micro sprinklers should be positioned to prevent excessive runoff on slopes and ensure uniform water application.

Pressure Compensation:

Pressure-Compensating Nozzles: Consider using pressure-compensating nozzles that maintain a consistent flow rate across a range of pressures. This can help compensate for pressure variations in the system and improve uniformity.

Testing and Monitoring:

Distribution Uniformity Tests: Conduct distribution uniformity tests to assess the actual water distribution pattern of the micro sprinkler system. Adjust spacing and layout as needed based on the test results.

Monitoring: Implement real-time monitoring and control systems to continuously evaluate the performance of the system and make adjustments when necessary.

Refractive Atomizing Mist Sprinkler

If you are growing from seeds, it is best to use a mist sprayer in order to protect seeds from large droplets of conventional micro sprinklers.

A mist sprayer differs from a micro sprinkler by spreading very fine drops that cannot be achieved with a conventional sprinkler with a spinner. Each droplet is approximately 150 microns in size, which is distributed gently and evenly over the seeds / crop.