Early warning method of greenhouse vegetable diseases and insect pests
A technology for pests and greenhouses, applied in the field of early warning of vegetable pests and diseases in greenhouses, can solve the problems of inability to change, laborious, and damage to living leaves, and achieve the effects of time-consuming, laborious, short measurement time, and accurate measurement
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[0142] Example
[0143] 1. The operator starts the computer, and the computer receives the greenhouse environmental condition data wirelessly transmitted by the PC-3 automatic weather station, as shown in Table 4:
[0144] Table 4 24-hour collection of environmental conditions in the greenhouse on June 15, 2010
[0145]
[0146] Calculate the average temperature and average humidity from 7:00 to 12:00:
[0147] Average temperature=(21.6+21.4+21.0+20.9+20.6+20.8) / 6=21.05℃
[0148] Average humidity=(80.3+77.8+78.2+77.3+78.3+77.5) / 6=78.23%
[0149] According to the calculation results, the environmental conditions can meet the growth and development conditions of pests and diseases, and it can be drawn from the table that the average temperature of 6 consecutive hours in a day is greater than 15℃, and the average humidity is greater than 55%, which can meet the requirements of pests. Environmental conditions, at this time the operator needs to start the chlorophyll fluorescence spectrum ac...
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