Homann, Peter S.; Caldwell, Bruce A.; Chappell, H. N.; Sollins, Phillip; Swanston, Chris W. (NRC Canada, 2001)
Chemical and microbial soil properties were assessed in paired unfertilized and urea fertilized (>89 g N·m–2) plots in 13 second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands distributed throughout wes ...