How to manage strawberry growth temperature and humidity

Temperature management 1. Strawberry growth temperature: Most of the strawberries in the greenhouse have already bloomed, and the first ear fruits have begun to mature. The temperature in November is also gradually decreasing. In the winter management of the greenhouse, attention must be paid to heat preservation. Strawberries are low-temperature crops, and temperature differences are also required. The normal growth temperature of strawberries is 8-10 degrees at night, and 25-28 degrees during the day is the best.

2. Strawberry heating and cooling: everyone must pay attention to the closing time of the greenhouse air outlet, because when the air outlet is closed, the temperature in the greenhouse will increase by 2 degrees-3 degrees. When the temperature drops in the winter, the air vent should be closed in advance in the afternoon for thermal insulation. When the weather is clear during the day, the temperature in the greenhouse rises quickly, and the temperature at noon generally exceeds 30 degrees. It is necessary to release the wind in time to reduce the temperature in the greenhouse. The temperature in a greenhouse is different. You can hang thermometers in the greenhouse to compare the temperature.

Humidity management 1. Significance of reducing humidity in strawberries in the greenhouse: During the growth of strawberries in the greenhouse, humidity management is very important and has a great effect on preventing diseases. Too much humidity in strawberries can easily spread the disease. Everyone knows that plant growth requires photosynthesis and respiration. When the leaves produce nutrients through photosynthesis during the day, and respiration at night, the humidity in the greenhouse is very high in the morning.

2. Methods for reducing humidity in strawberries in winter greenhouses: When the humidity in strawberry greenhouses rises, there are many ways to eliminate them. For example, the top seal of the greenhouse can be opened, and the side seal can also be opened to prevent moisture and moisture when it is severe. Plants such as straw and rice husk can be placed in the greenhouse to absorb moisture, and a large number of lime buckets can be placed in the greenhouse to absorb moisture.

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Roundness Measuring Instrument

A roundness meter is a measuring tool that uses the rotation axis method to measure the roundness error of a workpiece. The roundness tester is divided into sensor rotary and workbench rotary. During measurement, the measured part is installed concentric with the precision shaft system, and the precision shaft is equipped with an inductive length sensor or workbench for precise circular motion. The roundness meter consists of an instrument's sensor, amplifier, filter, and output device. If the instrument is equipped with a computer, the computer is also included in this system.

A roundness meter is a precision instrument used to measure the out-of-roundness of a rotating surface (shaft, hole, or spherical surface) of a component. There are usually two types: small desktop, where the workpiece is mounted on a rotating workbench and the measuring head is mounted on a fixed column; and Large floor mounted, with the workpiece installed on a fixed workbench and the measuring head installed on the rotating spindle. During measurement, the measuring head contacts the workpiece's surface, and the instrument's rotating part (workbench or spindle) rotates for one cycle. Due to the extremely high accuracy of the supporting bearings in the rotating part, the measuring head will generate a high-precision circular trajectory on the measured surface during rotation. The out-of-roundness of the measured surface causes the measuring head to shift and transform into an electrical (or pneumatic) signal. After amplification, it can be automatically recorded on a circular recording paper, and the out-of-roundness of each part can be directly read out for accuracy evaluation and process analysis and widely used in precision bearings, machine tools, and instrument manufacturing industries.

The roundness meter adopts a radius measurement method and operates in a rotating manner. The rotation axis system of the roundness meter adopts a high-precision air floating spindle as the measurement reference; The electrical part of the roundness tester is composed of advanced computers, precision circular grating sensors, and precision inductance displacement sensors. The circular grating sensors and precision inductance displacement sensors measure angle and radial displacement, ensuring the accuracy of measuring the angular displacement and radial value of the workpiece; The roundness meter measurement software adopts a roundness measurement software based on the Chinese version of WinXP operating system platform, completing data collection, processing, and measurement data management.

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