机译:引起杨树冰核形成的关键因素主动细菌性溃疡病及其防治技术
Collage of Forest Resources and Environment of Northeast Forestry University,;
Collage of Forest Resources and Environment of Northeast Forestry University,;
Collage of Forest Resources and Environment of Northeast Forestry University,;
Forestry Diseases and Pest Control Station of Heilongjiang Province;
Forestry Arboretum of Heilongjiang Province;
A'cheng Forestry Bureau of Heilongjiang Province;