1. Seed Disinfection: Use 30% seedlings for enemies wettable powder seed dressing, the amount of 0.4% of the seed amount; or soak for 30 minutes with 0.1% potassium permanganate solution, can kill the seeds of the bacteria. 2. Cover the cover with medicine soil: Using disease-free new soil, press 20 grams of slime to 20 kg of fine soil, mix the powdered soil, spread one third to the surface, and cover the seeds with the other two-thirds after sowing. Above. 3. Control seedbed temperature and humidity: After sowing, no ventilation, bed temperature to maintain 25 ~ 30 °C, bed soil to see dry see wet, reduce the bed temperature after emergence, during the day 20 ~ 25 °C, night 10 ~ 13 °C. Watering needs to be done on a sunny morning. 4. Chemical control: When disease-free seedlings are seedlings, fungicides with 1600 times copper master or 600 times chlorothalonil can be used in turn to spray fungicides which are mainly protective. They can be applied once every 7 to 10 days. When the seedlings are found to have diseased seedlings, they should be immediately unplugged and sprayed with Triterpene 800 times or Bitterness 1000 times or 600 times to kill the treatment of fungicides, 5 to 7 days for 1 time. JRT OEM Digital Laser Range Finder can measure faster, easier, and more effectively! Our Professional R&D team has over 16 years of experience on the laser and measurement field , so we can supply perfect OEM/ODM service according to user requirement ,and we have made out the mini size module in the world. Handheld Laser Meter,Handheld Laser Distance Meter,Laser Range Meter,Laser Distance Measurer Chengdu JRT Meter Technology Co., Ltd , https://www.rangesensors.com
The handheld laser distance measurer can measure distance,area,volume and pythagorean, and can switch to meter/feet/inch mode as you like.
Specially, there is three best-sale styles:
* Mini: D30 with our mini module U81 in it achieved the smallest size Laser Distance Meter in the world, which outlook is the same as a key,quite portable and cute. USB chargable design.
* Bluetooth: Diy Laser Range Finder With Bluetooth has been used to measure distances accurately in the both daily usage and industry application. The handheld laser distance measurer is widely used in variety areas, like project surveying, construction measuring, railway application etc.
* Longest: 150m equipped with a precise,easy- to-read digital LED display, which metal case brings you great hand feel.Power Supply: 2 x 1.5V AAA batteries.