Micro-sprinkler belts, also known as porous pipes, water spray belts, sprinkler belts, and micro-sprinkler irrigation pipes, are water-saving irrigation equipment that uses machinery or lasers to directly process small water outlet holes on a flattenable plastic hose for micro-sprinkler irrigation. Micro-sprinkler belts with 3, 5 or more water outlet holes in each group are laid directly on the ground, and the water flow directly in the air can form a micro-sprinkler irrigation effect similar to drizzle. It is a relatively advanced irrigation technology. Its advantages are, first of all, water conservation. Sprinkler irrigation basically does not produce deep seepage and surface runoff, and the irrigation is relatively uniform. Generally, 30% to 50% of water can be saved. In sandy soil areas with strong permeability and poor water retention, 70% to 80% of water can be saved. Secondly, sprinkler irrigation can improve the conditions for corn growth and development. Thirdly, a fertilizer device is attached to the micro-sprinkler belt system to spray fertilizer together with irrigation water, which not only saves fertilizer, but also improves fertilizer efficiency, saves labor for fertilization, thereby saving labor expenses and improving the effect of drug use. The amount of water used in sprinkler irrigation is small each time, which is not easy to damage the soil structure, so that the root system of corn can grow in a good soil environment. Sprinkler irrigation can increase air humidity and reduce air temperature. In addition, when the water temperature is lower than the air temperature, sprinkler irrigation can also heat the water in the air, thereby increasing the ground temperature. This is beneficial to the growth and development of corn.