Laser distance measure is a very convenient
tool for various types of applications in industries, construction and house decoration.
Laser Distance Meter is a very useful device which gives accurate measurement
of distance, area and volume especially in large areas such as rooms,
apartments, buildings, real estates, factories, warehouses, infrastructures, gardens,
roads, and many other applications requiring accurate results for distance ,
area and volume measurement.
Trade your heavy tape measure for laser
rangefinder, which let you simply take measurements with one hand. No matter
your job, the laser rangefinder will help you measure much farther, with
greater accuracy and in more situations, saving you money and time.
Specification:
Product
Model:
JX40
Accuracy:
±1.5mm (0.06
inch)
Measuring
Unit:
metre/inch/feet
Measuring
Range:
0.03~40m
(0.01 to 131 ft)
Measuring
Time:
0.1~4
seconds
Laser Class:
Class II
Laser Type:
635nm,
<1mW
Waterproof
& Dustproof :
IP54
Auto Laser
Off:
60 seconds
Automatic
Power-off:
480
seconds(8 minutes)
Lighting:
white LED
Datum
Option:
Can choose
Front edge or end piece edge as datum
Battery
Status:
Y
Signal
Strength Display:
Y
LCD display:
2 inch large
screen
Display
illumination and multi-line display:
Max
2 displays
Data Memory:
Y (allow 20
values)
Backlight
display:
Y
Continuous
Measurement:
Y
Min/max
Measurement:
Y
Addition/Subtraction(Distance/Area/Volume):
Y
Area/Volume/Pythagoras
Measurement:
Y
Battery
Type:
AAA alkaline
battery(2*1.5v )
Weight:
about
80g
Dimensions(L*W*H):
4*2*11.5cm
Auto
correction and error report technology:
Y
Operating
Temperature:
0-40 ℃(32-104 ℉ )
Storage
Temperature:
-20~60 ℃
(-4~140 ℉)
Laser Distance Meter Laser Distance Meter,Laser Distance Measure,Laser Rangefinder,Laser Distance Gauge Chengdu JRT Meter Technology Co., Ltd , https://www.cdtoflidarsensor.com
The selection of disease-resistant varieties to select good varieties with high yield and resistance to diseases can be flexibly selected according to local conditions.
The pests and diseases caused by rotating crops like onion, garlic, and leeks are similar and susceptible to mutual infestation. Therefore, when the leek is sown or transplanted, if the onions are onions and garlic vegetables, the underground pests will be especially large, and they will also cause Accumulation of bacteria, aggravate the occurrence of diseases, will inevitably cause the emergence of amaranth string low growth potential difference. Therefore, as far as possible, the leeks (including onions, garlic) and other vegetables should be rotated. The rotation period should be more than 3 years.
Well-prepared soil and ground cover leek are not resistant to waterlogging. Therefore, the site preparation requires a smooth surface and avoids low water accumulation in the rhizosphere. The completely open field leek field, combined with the physiological characteristics of leek itself and the management of fertilizer and water, in the leek root 1 to 2 cm of fine sand soil 1 or 2 times, can increase the leek "root white" height of more than 0.5 cm annually, but also to stop the adult cricket Eggs are laid in the rhizosphere earth seams of leeks. Shelter sheds are generally covered with soil once before the shed.
In the spring and fall season, the leeks were continuously watered to submerge the roots for 2 to 3 days in the spring and autumn larvae. The sheds and leeks were used for winter irrigation and spring irrigation in the late November and early March of the following year. Serious land masses occur in flooded areas, and the amount of water to be submerged in the ridge back can significantly reduce the damage. When combined with medication, the effect is better.
Reasonably fertilizing leeks is a good fertilizer crop. However, if a large amount of chemical fertilizer is applied, it will lead to long-term nitrogen bias, which will reduce disease resistance. Therefore, fertilization should be based on the application of high quality organic decomposed organic manure, cake fertilizer or biological bacteria fertilizer, supplemented by chemical fertilizer supplement, applying nitrogen, phosphorus, potassium compound fertilizer when applied fertilizer, and appropriate amount of trace element fertilizer, cultivate healthy roots In order to improve the pest resistance and increase commercial property.
The prevailing condition of clean idyllic vegetable grey mold and epidemic disease is high humidity and low temperature. Therefore, the management of arch sheds should be strengthened in management, timely ventilation and ventilation, strict control of temperature and humidity, and heat insulation and humidity reduction. The amount of ventilation should be determined according to the greenhouse temperature and the growth of the leek. When the freshly cut leek or the outside temperature is low, ventilation should be small or delayed. In addition, in order to reduce the humidity in the shed and reduce the occurrence of diseases, the combination of smoke and dust agents should be used to minimize the number of times the liquid is used.
Non-pollution pest leek agricultural control technology
Due to the continuous cultivation of leeks and the suitable environmental conditions in greenhouses, the occurrence of leek pests and diseases has been increasing year by year (such as alfalfa, gray mold, epidemic, etc.), and conventional control methods often adopt chemical control methods, especially for difficult-to-control crickets. The prevention and control of the abuse of highly toxic, highly toxic, and high-residue pesticides are widespread, and the results not only lead to increased resistance to diseases and insect pests, but also to reduction in yield and quality of leeks. After research and practice, a set of pollution-free agricultural pest prevention and control technology measures for agricultural prevention and control were summed up for reference.