摘要
通过田间开放式小区试验研究，明确了小麦穗期多病虫同时危害与产量损失的关系：建立了小麦穗期受麦蚜Ｘ１、白粉病Ｘ２和叶锈病Ｘ３同时危害与产量损失的相关模式。设立了麦蚜Ｘ１、白粉病Ｘ２的经济阈值模型。并提出了稳期病虫的综合防治指标。
In this paper. we establish a related model which reveals the relationship betweenthe wheat yield loss and the spontaneous attack by varieties of wheat diseases and pest insects. Of many kinds of wheat diseases and pest insects.wheat aphis and white dust diseaseare asserted as main factors affecting wheat yield.lowering the thousand granulars weightand the amount of grains of a single plant. Main while.the integrated control indices areproposed concerning various kinds of wheat diseases and Pests.
出处
《山东农业大学学报（自然科学版）》
CSCD
1995年第4期471-479,共9页
Journal of Shandong Agricultural University：Natural Science Edition
关键词
小麦
病虫害
产量
损失率
综合防治
wheat diseases and insect pest
damage ratio
synthetic control index
