For crops with greatly different water requirements, how can the impact sprinkler series achieve precise control through sprinkler settings?

The impact sprinkler series achieves precise adaptation to the differences in crop water requirements through multi-dimensional coordinated regulation. The core lies in the modular design of the nozzle assembly and the dynamic coupling mechanism of fluid mechanics: for water-loving crops such as rice, a φ6-8mm large-aperture low-pressure nozzle (working pressure 0.2-0.3MPa) is used, and a double-channel diffuser is used to decompose the water flow into 2-5mm particle size water droplets to form a continuous wetting mode, and the single irrigation volume can reach 40-50mm; for water-sensitive crops such as grapes and citrus, it is switched to a φ2-3mm high-pressure atomizing nozzle (0.5-0.8MPa), and a turbulence generator is used to generate droplets with a particle size of 0.1-0.3mm, combined with intermittent spraying (start-stop cycle 3min/5min) to control the root zone penetration depth to no more than 30cm.

In the three-dimensional planting scene, the nozzle configuration adopts a gradient pressure strategy: the high-position nozzle (2.5m above the ground) is responsible for the upper trees, and the fan-shaped nozzle is configured to form a parabolic trajectory at an elevation angle of 15°, with a range covering a radius of 8-12m; the middle-layer shrubs use a vortex nozzle (1.2m above the ground) to achieve 270° rotation spraying, and the torque balance is controlled by adjusting the position of the counterweight block to stabilize the rotation cycle at 20-30 seconds/circle; low-lying herbaceous crops use buried lifting nozzles, which are automatically lifted at a threshold of 0.15MPa through a pressure sensing device to perform pulse irrigation, and retract after 3 seconds each time to prevent trampling.

The intelligent control system collects root layer moisture data in real time through the soil moisture sensor network. When the critical value of water demand during the tasseling period of corn is detected, the pipe network pressure is automatically increased to 0.6MPa and switched to a double-row cross-spray mode, reducing the canopy interception rate to below 12%, and the effective water volume reaching the root zone is increased to 78%; for sensitive stages such as the cotton bud and boll period, the rainfall intensity control algorithm is activated to limit the spraying volume per unit time to within 7mm/h to prevent nutrient loss caused by surface runoff. In terraced fields or sloped fields, the built-in gyroscope of the sprinkler head senses the terrain slope, dynamically adjusts the deflection shield angle to compensate for the deviation of the water flow trajectory, and ensures that the spraying uniformity coefficient CU ≥ 85% can be maintained on a 15° slope.

When dealing with high turbidity water sources, the specially designed self-cleaning nozzle flushes the sediments in the flow channel through periodic boost pulses (1.2MPa peak pressure is triggered for 0.2 seconds every 30 minutes), and the two-stage filtration system (120 mesh + 80 mesh filter) can control the blockage rate to less than 3% per year, ensuring that crops in arid areas continue to receive stable irrigation. This multi-parameter linkage precision control system enables the impact sprinkler to achieve differentiated intercropping irrigation of corn (water requirement 500-800mm) and soybeans (water requirement 450-700mm) in the same field, and the water utilization efficiency is increased by 22%-35%.