I've got a 10 acre field of black walnuts I started as bare root seedlings about 30 years ago. Field is starting to look pretty nice, almost like a park. Just across the road from me is a good size pond with algae scum so thick it tempts one to try walking across it in the summer. There's a goat farm on one side of the pond, and I'm sure there's a fair amount of runoff from the property into the pond. Got me thinking that the algae could make good field dressing for my grove if I can come up with a good method to harvest it, then spread it with an old manure spreader. This assumes I can get permission from the person who owns the pond, of course. Anybody have suggestions as to harvesting and/or nutrient value of the stuff?