Will mulching reduce how often I need to irrigate?

Yes, mulching is one of the simplest ways to stretch your irrigation, because it covers the soil and cuts the water lost to evaporation from the bare surface, which can be a large share of what you apply in hot weather. With the soil shaded and cooler, moisture stays in the root zone longer, so you can lengthen the gap between irrigations. Mulch also keeps soil temperature steadier, reduces crusting, and holds down weeds that otherwise steal water. You can use organic mulch like crop residue, straw, or dry leaves, which also adds organic matter as it breaks down, or plastic mulch which is common in vegetables and works well with drip. On drip plus mulch many farmers see a clear drop in water use. How much you save depends on your soil, crop, and weather, so watch your soil moisture and adjust the interval rather than fixing a new number. For the right mulch and method for your crop, your KVK can advise.