Quantitative wind spore traps for the control of disease spores
The station dock leveler is fully hydraulic driven, which is easy to operate and reliable. The lip plate and the platform are connected by a long shaft, with high strength and good reliability. Imported seals are adopted to ensure that the hydraulic system has excellent sealing performance. Imported integral modular hydraulic station is adopted, with good sealing performance and long service life. The design of high-strength "U" shaped beam can ensure its high load and long-term operation without deformation. The anti-skid pattern steel plate is adopted to make the platform have good anti-skid performance. Both sides shall be provided with anti rolling skirt plates to prevent accidental injury caused by toes extending into the platform. A support rod is provided to ensure the safety of maintenance personnel when entering the boarding bridge for maintenance.Electro hydraulic, simple operation, adjustable height, large adjustment range, improve loading and unloading efficiency and save manpower.
The hydraulic system is used to lift the main table and extend the extension plate to ensure smooth and safe operation. The hydraulic pump, conduit and oil storage tank are a complete assembly installed at the bottom of the worktop, away from the sundries in the pit. The reliable hydraulic speed valve automatically prevents the loading and unloading platform and the loads on the platform from falling freely within 3 "range. The abundant optional accessories further enhance the safety guarantee and improve the operation convenience. The maintenance requirements are low.
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The optimum air temperature for spore capture by quantitative airborne spore traps is 20-25°C, and the daily average temperature is lower than 19°C or higher than 26°C, and the trapping volume is significantly reduced. Rainfall can promote the settlement of spores. Therefore, there is little catch on rainy days and the amount of sunny catches after rain increases sharply. The breeze is conducive to the spread of powdery mildew, and the amount of spores trapped by quantitative airborne spore traps increases. However, the spores of wind speeds below 0.2 m/s and above 3.0 m/s are significantly reduced.
The mastery of the occurrence and quantity dynamics of aerial spores during this period through quantitative airflow spore traps is a condition and basis for predicting the final condition and determining the first application period. Spores at the end of the winter and early spring when the gum trees began to draw leaves the rubber tree powdery mildew spores, with the gum tree leaf extraction rate increased simultaneously. Subsequently, as the temperature increased, the young leaves became old, the ability to produce spores decreased, and the in-air spores gradually decreased, so that the quantitative quantity of quantitative airborne spore traps was also affected.