Answer: In November, the jujube tree entered a dormant period, which is a favorable period for planting. Planting gardens should be selected as flat lands with adequate light and fertile soil. The planting time is appropriate after the fruit trees are defoliated and the soil is frozen. Seedlings are selected for their complete roots, good healing of grafted parts, and no disease and pests. The depth of planting is such that the rhizome position of the seedlings is slightly higher than the ground. After irrigation and sinking, the rhizomes are flat with the ground plane. After planting, it poured water once. After the seedlings are planted, they must be immediately painted white and tied with grass to ensure their safe wintering. The 30 cm mound of seedlings at the base of the seedlings should be protected against cold, and then thawed in the spring of the next year for 2 to 3 times. Leading Laser Measure Module Factory in China
Product Specifications:
Accuracy
±1
mm (0.04 inch)
Measuring
Unit
meter/inch/feet
Measuring
Range (without Reflection)
0.03-150m
Measuring
Time
0.1~3
seconds
Laser
Class
Class
II
Laser
Type
635nm,
<1mW
Size
45*25*12mm
(±1 mm)
Weight
About
10g
Voltage
DC2.0~3.3V
Electrical
Level
TTL/CMOS
Frequency
10Hz
Operating
Temperature
0-40 ℃ (32-104 ℉ )
Storage
Temperature
-25~60 ℃ (-13~140 ℉)
Range Sensor,Laser Distance Module,Distance Sensor,Laser Measure Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.infrareddistancesensor.com
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This Laser distance sensor has high Accuracy up to ±1 mm, working as phase measure, which support RS232/RS422/RS485/Arduino to TTL communication.
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Planting winter jujube in winter