Which irrigation method can also help in minimizing weed growth?

Subsurface irrigation is effective in minimizing weed growth primarily because it delivers water directly to the root zone of plants buried beneath the soil surface. This targeted approach reduces the moisture available to the soil surface, which is essential for weed germination and growth. Since weeds typically thrive in moist, surface-level conditions, the reduction of surface moisture discourages their development.

In contrast, surface irrigation methods, such as flood irrigation, tend to saturate the entire field, providing plenty of moisture for both crops and weeds. Similarly, sprinkler irrigation distributes water over the surface of the plants and the ground, which can inadvertently promote weed growth by keeping the surface moist. Therefore, subsurface irrigation stands out as the most effective method in this context for controlling weeds while providing crops with the necessary water.