Understanding soil moisture math makes managing poa in extreme heat a lot easier. Temps were 42C when I took this pic last summer You would think having a digital moisture meter would make irrigating a golf course easier. For the most part I think it does but I have also seen some subtle ways that turf managers have started using moisture meters that I think actually make our lives more difficult. Before we could accurately measure the soil moisture we were left to essentially guess. We had to use our limited powers of observation to make judgement calls on how much moisture we needed to apply. We would irrigate at night, and top up any visibly dry areas with a hose. We would then have to go out again in the afternoon to top of the additional areas that had dried out over the day. The only real way to tell if something needed more water was to look and see if the grass was wilting. It was more difficult to determine if we were over-watering. There's a big difference in the amount