Fig. 4. Effect of alum and aluminum chloride additions to swine manure on (A) tall fescue yields and (B) nitrogen uptake by fescue. Different letters indicate significant difference at P 
0.05.
Fig. 4. Effect of alum and aluminum chloride additions to swine manure on (A) tall fescue yields and (B) nitrogen uptake by fescue. Different letters indicate significant difference at P 0.05.