Beet microgreens

Anyone have tips on growing beetmicrogreens. I have tried every possible way,and I still continue to get damping off and a few beet seedlinglings. If anyone can share tips on growing them successful from type of soil they use,germination,etc. I would greatly appreciate it. Thank you!

I use a 1/3 sand,  1/3 finished compost, 1/3 soil mix. I use flat trays to grow in and I like to spread the seeds very thick then cover with a light dusting of the soil mix, then I tamp gently to get soil to seed contact.
Next I mist the top lightly, most of the water comes from the bottom and once it is damp, I pull it and let it drain. After that, it is just a mist over the top once a day until the seeds sprout, then bottom watering is used for 5 to seven days.
Harvest with sharp scissors.

Thanks so much for your tip. I also grow mine in flats in a soilless mix. I germinate them in my house than transfer to my greenhouse.  I live in zone 6. Might this be a problem?Isn’t it fairly warm in Arkansas? Not good with geography!LOL!

Yes it gets hot with high humidity here in Arkansas, indoor growing of microgreens is the norm here because of the heat and humidity.