Manganese is one of the trace elements required for crops. When the crop is deficient in manganese, a small amount of potassium permanganate can prevent manganese deficiency. However, the amount of manganese cannot be too large, and manganese will be toxic to crops. Potassium is one of the three major nutrients needed by crops. Applying small amounts of potassium permanganate does not make much sense for potassium. Potassium permanganate is a strong oxidant and has a killing effect against a variety of pathogenic fungi, bacteria, and viruses. In animal husbandry, water production is often used for disinfection of equipment. It has been reported that potassium permanganate can be used to prevent and treat damping-off, wilt disease, powdery mildew, downy mildew, and soft rot in melon vegetables. First, control blight: before watermelon sowing, the soil is treated with 500-800 times potassium permanganate spray, or 500-800 times potassium permanganate to irrigate the roots during the watermelon seedling stage and extending period, each time About 250 milliliters of irrigation, the rate of wilt disease can be controlled in the following 0.5%. Field watermelon wilt disease began to occur immediately with potassium permanganate 500-800 times Irrigation roots, but also have better results. When bitter gourd wilt begins to occur, irrigation with potassium permanganate 500 times can control the rate of death and disease of fusarium wilt within 1%. After the cucumbers were transplanted and planted live, each plant was fed with 150-200 亳 elevated potassium manganate 1000-times solution to irrigate the roots, irrigation was performed every 7-10 days, irrigation was performed 2-3 times, and blight was effectively prevented. Second, the prevention of damping-off and blight: After transplanting live eggplant, with 800 times potassium permanganate to irrigate the root or use 800-1000 times potassium permanganate spray seedlings, control of damping-off disease Up to 99% or more. The pepper seeds were soaked in 500-fold solution of potassium permanganate for 10 minutes. After the seedlings were sprayed with 500-600 times potassium permanganate, they were sprayed or rooted, which effectively controlled the diseases such as damping-off and damping-off. happened. After pepper is colonized, rooting with potassium permanganate 500 times, the control effect on fusarium wilt is as high as 99-100%; if fusarium wilt has already occurred, 400-500 times of potassium permanganate is used when the wilt disease is first seen. Liquid irrigation roots also have good results. Third, control of Chinese cabbage soft rot and downy mildew: before sowing with potassium permanganate 800-1000 times soaking for 1-2 hours, remove and dry after sowing; in the Chinese cabbage seedling stage, spraying high rosette period Potassium manganate 600-800 times 2-3 times, interval 6-7 days, can effectively control the development of the disease. Fourth, control melon vegetable powdery mildew: spray with 0.2% potassium permanganate solution 2-3 times, once every 5-6 days, the effect is good. The use of potassium permanganate to prevent vegetable diseases, preparation and use should pay attention to the following matters: First, the weighing should be very accurate, to prevent the solution concentration is too large or too small, the concentration is too small, the effect is not good, the concentration of pesticides over the general assembly of drugs harm. Second, the preparation of liquid medicine with clean water, do not use dirty water, sewage preparation of liquid medicine, can not use hot water to prepare liquid medicine, so as not to reduce the bactericidal effect. The third is with the use, not long home. Clean the medicine after spraying, otherwise it may damage the medicine.
Different from ultrasonic heat counters,The Smart Heat Meters are used
for heat and cold energy calculation through the water. The smart heat meters
can display the accumulated heat, flow rate, instant flow rate, inlet water temperature,
outlet water temperature, temperature difference and etc.
The smart heat meter
is suitable for measuring the heat exchange, known as the heat transfer fluid
or liquid absorbing thermal energy conversion equipment, which consists of a
flow sensor, temperature sensor and heat calculator(heat meter counters) three parts. The smart heat
meters are also known as smart energy meters.
The smart heat meter is
used to measure and display the water flow through the heat exchange system
release or absorb heat. The smart heat meters are installed at the inlet pipe
or outlet pipe to measure accurate metering and intelligent control of charges
of the heat consumption. Its working principle is to install the smart heat meters
in the heat exchange system, when water flows through the system, according to
the supply and return water flow temperature, from the data from the flow
sensors and temperature sensor as well as the water flow time, the smart heat meter
will calculate the released and absorbed energy through the calculator.
Smart Heat Meters,Ultrasonic Smart Meters,Mechanical Smart Meters,Heat Meter Counters,Ultrasonic Heat Counters Berggruen Technology Co.,Ltd , https://www.meter-technology.com