Temperature conditions: The suitable temperature for the spraying of bacterial biopesticide is between 20 ° C and 30 ° C. This is because the active ingredients of such pesticides are protein crystals and living spores. At low temperatures, spores propagate very slowly in pests, protein crystals are also less likely to act, and bacterial biologic pesticides are applied topically at 25 ° C to 30 ° C. The potency is 102 times higher than that at 10 ° C to 15 ° C.
Humidity conditions: use bacterial biological agents pesticides, the greater the environmental humidity, the higher the efficacy, especially with powdered biological pesticides. Because the bacterial spores are not resistant to dry environmental conditions, the sprayed bacterial powder should be carried out in the morning and evening when dew is present, so as to facilitate the adhesion of the microbial agent to the base leaves, and promote spore reproduction and improve the efficacy.
Sunlight conditions: Ultraviolet rays in the sun have a killing effect on spores. Direct sunlight exposure for 30 minutes, the spore mortality rate is about 50%, and the mortality rate after exposure for 1 hour is as high as 80%. In addition, ultraviolet radiation also has a deformation-reducing effect on the parasporal crystals. Therefore, it is best to apply the biologic pesticides after 5 pm or on cloudy days.
Rain conditions: medium to heavy rain can wash away the bacteria sprayed on the foliage, reducing the efficacy, but if it is light rain after 5 hours of application, it will not reduce the control effect, but have synergistic effect.
Diesel Engine water pump is a common industrial equipment, which is widely used in agriculture, construction, engineering, fire protection and other fields. Its main function is to convert the power generated by the diesel engine into the power of water, so as to realize the delivery and supply of water. This article will introduce the working principle, structural characteristics, application fields and maintenance of diesel engine water pump.
The working principle of the diesel engine water pump is to use the power generated by the combustion capacity of the diesel engine to transmit the power to the water pump through the connecting rod mechanism, so as to drive the water pump to work. The working process of diesel engine water pump can be divided into three stages: water absorption, water pressure and drainage. In the suction stage, the diesel engine generates negative pressure through the up and down movement of the piston to draw water from the water source into the water inlet of the water pump; in the pressurized water stage, the piston of the diesel engine moves upwards to press the water into the pressurized water chamber of the water pump; in the drainage stage, the piston of the diesel engine moves downward to discharge the water from the outlet of the water pump.
Diesel Engine Water Pump,Water Pump Diesel Engine Agriculture,2 Inch Diesel Water Pump,3 inch 4 inch diesel water pump
Vibropac Machinery Co.,Ltd , https://www.vibropac-power.com