James, you would be sowing pumpkins and squash AFTER you start irrigating right?
Actually, no. I plant pumpkins about the 5th of May, and we are not likely to get water in the irrigation pipes until after June 1. The soil in early May is likely still quite damp, depending on the rains we have had, but it needs to be dry enough it doesn't make mud balls before planting. There will still be plenty of moisture to germinate the seed. They get no irrigation until after they are up and growing. (I do not ever use our culinary water source for irrigation. We get our irrigation water via a canal then into a pipeline and have sprinkling pressure in the pipe. The water never gets in the canal before June. )
I put pumpkin seed about 1.5 inches deep and step on the area after planting to firm the soil and put the seed in good contact with the soil. This is an important step. If you fail to do this, the fluffy soil dries too quickly to the depth of the seed.
All types of squash are planted the same way. Cucumbers too, except that I only put cukes an inch deep.
https://donce.lofthouse.com/jamaica/Plan ... anting.htm
Gardening at 5000 feet elevation, zone 4/5 Northern Utah, Frost free from May 25 to September 8 +/-