摘要
为明确北大荒集团黑龙江八五四农场大豆病害发生种类及主要病害流行规律,对八五四农场不同管理区进行了大豆全生育期病害种类及严重度调查,共发现大豆病害5种,分别为大豆根腐病、大豆霜霉病、大豆菌核病、大豆灰斑病和大豆胞囊线虫病,其中大豆根腐病和大豆霜霉病的发生最为严重。大豆根腐病和大豆霜霉病的时间流行动态均可以实现Logistic拟合,大豆根腐病指数增长期为5月18日至6月12日,Logistic增长期为6月12日至7月22日,衰退期为7月22日之后;大豆霜霉病指数增长期为7月11日至7月31日,Logistic增长期为7月31日至8月25日,衰退期为8月25日之后。
In order to clarify the types of soybean diseases and the epidemic laws of the main diseases in Beidahuang Group's Heilongjiang 854 Farm,a survey of the types and severity of soybean diseases during the entire growth period was conducted in different management areas of the 854 Farm.A total of 5 soybean diseases were found in the 854 Farm.,they are soybean root rot,soybean downy mildew,soybean sclerotium,soybean gray spot and soybean cyst nematode,of which soybean root rot and soybean downy mildew are the most serious.Logistic fitting can be achieved for the temporal epidemic dynamics of soybean root rot and soybean downy mildew.The soybean root rot index growth period is from May 18 to June 12,the Logistic growth period is from June 12 to July 22,and the decline period is After July 22;the soybean downy mildew index growth period is from July 11 to July 31,the Logistic growth period is from July 31 to August 25,and the decline period is after August 25.
出处
《智慧农业导刊》
2026年第4期55-58,共4页
JOURNAL OF SMART AGRICULTURE
基金
国家重点研发项目(2023YFD1400400)。
