There's no surfactant on the label. It says "co-formulants as needed" and nothing else.
The soil is what I found here, it's almost clay. The only thing I did was to add some garden soil with peat moss but I see it's like that clay eats it up. There are lots of "earth ruffles" due to earthworms and now it's really humid because we had heavy rains and the sun still hits for few hours the garden. It's the soil I tested the past summer and gave a neutral PH.
The real problem is that I can't take DLs out of there, the soil is so compacted and heavy that is a pain to dig and when I tried to take out some DLs (I made room for some of them in another spot) I lost a lot of roots because they were literally inglobated by soil.
I don't think I can work easily with this kind of soil