Winter greenhouse tomatoes warm water

In winter greenhouse tomato cultivation, it's common to encounter issues such as enlarged and hollow fruits. These problems not only reduce the overall yield but also significantly impact the quality and flavor of the tomatoes, making them less desirable for consumers.
The main cause of the "hollow fruit" phenomenon is related to the temperature of the irrigation water. When the water temperature drops below 7 degrees Celsius, it can lead to root chilling in the tomato plants. This cold stress reduces root activity and impairs the plant's ability to absorb water effectively. As a result, certain parts of the fruit may develop hollow areas due to uneven water distribution. Even if the ground temperature later rises and the roots recover, the hollow sections of the fruit cannot be refilled, leading to permanent damage.
To prevent this issue, it's crucial to ensure that the irrigation water in winter greenhouses is warmed up to at least 10 degrees Celsius before use. One practical method is to store water in a corner of the greenhouse to allow it to warm naturally. This simple adjustment can help maintain healthy root function and prevent the development of hollow fruits, ensuring better-quality tomatoes throughout the growing season.

Laser Distance Sensor

Leading Laser Measure Module Factory in China
The World's First single transmitting single receiving design laser module, which has a big help to reduce producing cost and power consumption of the laser distance sensor.
This Laser distance sensor has high Accuracy up to ±1 mm, working as phase measure, which support RS232/RS422/RS485/Arduino to TTL communication.
This laser distance module is widely used in the Laser Distance Meter industry, also a very good choice for the Industrial applications. Most of measuring tools manufactures is purchasing from us 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 ℉)


Chengdu JRT Main Smart Sensor: Industrial Laser Distance Sensors, Laser Rangefinder Sensor , Tof LiDAR Sensors.

Range Sensor,Laser Distance Module,Distance Sensor,Laser Measure Sensor

Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com