(3) Rotary rotation: It is made with aquatic vegetables, gramineous vegetables and onion and garlic vegetables every other year.
(4) Strengthen management: rationally close planting, control the temperature and humidity in the shed in the protected area of ​​the tube shed and the continuous shed, and timely release the air and moisture, especially to prevent the humidity in the night shed from rising rapidly. This is the key measure to prevent and cure this disease. Pay attention to the reasonable control of watering and fertilization. The watering time is placed in the morning and the shed is opened in time to reduce the humidity in the shed. Especially before the spring cold intrusion, it is necessary to cover the plastic film of the small ring shed in time, and cover the grass around the shed to prevent the plants from being frozen.
(5) Regular and timely drug control of seedbed: Before transplanting, the seedling must be transplanted with medicine, no disease, weak seedlings, and strict control of seedling transplanting.
(6) Soil disinfection: use 10 to 10 grams of 50% carbendazim powder per square meter of seedbed, mix well with 10~15 kilograms of dry fine soil, and then apply it to eliminate the sterilization source.
(7) Chemical control: Spraying at the beginning of the disease, spraying once every 7 to 10 days, spraying 3 to 4 times in a row, the diseased disease is developed according to the disease, and the number of spraying is increased if necessary. The drug can be selected from 43% good gram suspension agent 2000-3000 times liquid (40-50 grams per mu); 50% quick-kling WP 1000 times liquid (100 grams per mu); 50% Nongliling WP 1000 Double liquid (100 grams per mu); 50% phorhin WP 1000 times liquid (100 grams per mu); 50% thiophanate WP 1000 times liquid (100 grams per mu); 50% carbendazim Wet powder 800 times liquid (125 grams per mu); 70% methyl thiophanate 1000 times liquid (100 grams per mu) and other spray control. In the spring, there is continuous rain and rain. In the greenhouse, the cucumber shed can be used in a greenhouse. You can choose a smoked smoked agent for 100 grams per standard shed, and then open the shed for 20 minutes and then use the shed for fumigation.
[Special recommendation] When it is found that the diseased plants and diseased branches in the field (the diseased branches are best cut off from the diseased part), they can be prepared with a high concentration of 50% keering WP or 50% carbendazim WP. 100 times of paste-like liquid is applied to the diseased part with a brush or the like (the diseased branch of the diseased part is applied to the left branch), the area of ​​the application is 1 to 2 times larger than that of the diseased part, and the disease is 5 to 7 days old. Once again, it can save 80% of the diseased plants and diseased branches. Although this method is labor-intensive, it saves pesticides and has good control effect.
An Ultrasonic thickness gauge is a measuring instrument for the non-destructive investigation of a material's thickness using ultrasonic waves The usage of an ultrasonic thickness gauge for non-destructive testing to check material properties such as thickness measurement, is now regularly utilized in all areas of industrial measurements. The ability to gauge thickness measurement without requiring access to both sides of the test piece, offers this technology a multitude of possible applications. Paint thickness gauge, ultrasonic Coating Thickness Gauge, digital thickness gauges and many more options are available to test plastics, glass, ceramics, metal and other materials. A rugged ultrasonic thickness gauge determines sample thickness by measuring the amount of time it takes sound to traverse from the transducer through the material to the back end of a part, and then measures the time which the reflection takes to get back to the transducer. The ultrasonic thickness gauge then calculates the data based on the speed of the sound through the tested sample.
Ultrasonic Thickness Gauge,Paint Thickness Tester Meter Gauge,Paint Meter Coating Thickness Gauge,Thickness Gauge For Plastic Film
Xi'an Lonn M&E Equipment Co., Ltd. , https://www.smartmeasurer.com