Herbicide application depends on the type of herbicide. The pre-emergence soil treatment agent is applied before the emergence of weeds and is effective against unrooted weeds, but it is not effective or effective for emergence of weeds. Post-emergence stem and leaf treatment agent is effective for emergence of weeds, but it can not control the emergence of weeds. Soil and stem treatment agent can be used as pre-emergence treatment agent, but also as herbicide after seedling. Most herbicides are selective herbicides. For example, atrazine can control weeds in corn field and be safe to corn. Exterminating herbicides cannot be sprayed directly onto the crop. The application of herbicides is based on the premise of crop safety, and the selection is based on the characteristics of crop growth, the type of weed occurrence and the local climate conditions.
At present, I mainly promote the “one kill and one kill†weeding technology for emerging maize. The method is: Ethylene mixture + paraquat solution, before sowing until emergence, combined with watering, just after entering the ground after watering, retreating spray, so that the spray evenly, leaving no dead ends.
New product of U85 micro laser distance sensors use highly focused class 2 laser to detect objects or measure distances, and can return a measured value via varieties intface( serial, usb, rs232, rs485, bluetooth etc.). The electronic distance sensor is a very small Laser Distance Sensor, but high resolution up to 1mm and long distance measuring sensor - teachable measuring range of up to 30m. Extremely accurate distance sensing sensors, errors down to ± 1mm. And the mini sensors and measurements support continuous measurement function, great for compact solutions(eg: robots) with the smallest Laser Distance Sensor of the world!
Parameters of U85:
Accuracy
±1 mm (0.04 inch)
Measuring Unit
mm
Measuring Range (without Reflection)
0.03-20m/0.03-30m
Measuring Time
0.1~3 seconds
Laser Class
Class II
Laser Type
620nm-690nm, <1mW
Size
41*17*7mm (±1 mm)
Weight
About 4g
Voltage
DC2.0~3.3V
Electrical Level
TTL/CMOS
Certifications
CE, FCC, RoHS, FDA
Operating Temperature
0-40 ℃ (32-104 ℉ )
Storage Temperature
-25~60 ℃ (-13~140 ℉)
Mini Laser Distance Sensor,Optical Laser Distance Sensor,Smallest Laser Range Sonsor,Laser Measuring Sensor
Chengdu JRT Meter Technology Co., Ltd , https://www.accuracysensor.com