你给我讲讲植物病害的主要病原，好吗？
植物病害生物防治一直是农业研究的热点。
The agriculture study has been focused on biocontrol of plant disease for a long time.
目的掌握阿拉善荒漠草原植物病害的种类及区系。
Objective Handle plant disease type and region in Alashan desert grassland.
几丁质酶和葡聚糖酶在植物病害生物防治作用中具有重要的作用。
Chitinase and glucanase are very important in plant disease biological control.
几丁质酶和葡聚糖酶在植物病害生物防治作用中具有重要的作用。
Chitinase and glucanase are very important in plant disease biological control.
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