Abstract
The spray-distribution pattern from a prototype sludge-application vehicle was not differentially affected by varying stand conditions during spray tests in stands of Douglas-fir ( Pseudotsuga menziesii (Mirbel) Franco). The test-stand stockings ranged from 345 to 885 trees ha −1. An optimal trail spacing of 65 m was established for the prototype vehicle. The spacing was determined by the throw distance from the vehicle and the amount of spray overlap required from adjacent trails to produce a uniform application. The tests indicated that a uniform sludge application can be achieved in a forest environment with approximately 6% of the application area consisting of access trails.
Published Version
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