01-07-2017, 08:55 AM
(01-07-2017, 08:19 AM)Helmut Winkler wrote: You are not allowed to view links. Register or Login to view.I was thinking of "Knöllchenbakterien", the kind of bacteria which help some plants to assimilate nitrogen. Sorry, but I am not clear about the English terminology
In my area we call them nitrogen-fixing nodules and alder trees are some of the more important nitrogen fixers that prepare the soil for coniferous trees.

