Monitoring Methods of Crop Diseases and Pests Based on Hyperspectral Technology
نویسندگان
چکیده
It has important significance to improve monitoring the diseases and pest level and to maintain food security and ecological environment protection in China. There is a distinct difference on the chlorophyll content between the disease and health leaves after analyzing. Therefore the following bands, 470nm, 550nm, 635nm, 680nm, 800nm, sensitive to chlorophyll are used to monitoring the disease leaves. Combined with the measured chlorophyll content, the model for estimating chlorophyll content is constructed. The model can be used evaluating the extent of the wheat rust. The research of the canopy scale is based on the quantitative analysis on the first-order differential spectrum characteristics of the disease and health canopy. The following parameters, Db, Dy, Dr, Dinr, Rg, Ro, SDr/ SDb and SDinr/ SDb, are selected as hyperspectral characteristic parameters to diagnose the wheat yellow rust disease. Keywordsmonitoring method;corp diseases; inspecting pests hyperspecrral technology
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