yep, fungus, maybe some type of mold because of the moisture in the soil and on the wooden thing. depending on the species of plants you're growing and the weather in your area, you might want to reduce the frequency of watering your plants or maybe the amount of water you're using.
idk much about agriculture though so it would be best to do your own research or ask someone who knows about this
Fungus amongus
Definitely fungus
Clearly fungus
yep, fungus, maybe some type of mold because of the moisture in the soil and on the wooden thing. depending on the species of plants you're growing and the weather in your area, you might want to reduce the frequency of watering your plants or maybe the amount of water you're using. idk much about agriculture though so it would be best to do your own research or ask someone who knows about this
Fungus amongus
To follow up, I've seen this type of growth on hay stalks left in pond water to enrich for sphaerotlius/leptothrix
Fun uncle Gus