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Description
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Three-in-one soil tester soil detector soil thermometer soil Acidometer pH meter

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when measuring the pH value and humidity of the soil, first insert the probe into the soil as deep as possible, leaving about 1cm on the probe.

Toggle the button to MOIST on the pen. MOIST is the moisture key, corresponding to MOIST, DRY, WET, and 1-3 (red part) indicating that watering is required, 4-7 (green part) is suitable. Please adjust the watering time according to the variety of plants. 8-10 (Blue part) says that Alaska pollock is wet.

Touch the button to PH on the pen, PH is the PH key, corresponding to the 8-3.5 value on the table, ALKALINE is alkali, ACDIC is acid, value 7 is basically neutral, the smaller the number, the greater the acidity. Please adjust the soil pH according to the plant variety.

The LIGHT key is the illuminance. The measurement range is 0-2000 lumens. The larger the value, the stronger the illumination. Please decide whether to shade according to the plant variety.

When using, be careful not to touch the stone when inserting the electrode. Do not use too much force, otherwise it will easily hurt the electrode. Wash the electrode clean after using it.

S00266

soil pH

soil pH is also called "soil reaction". It is the acid-base reaction of soil solution. It mainly depends on the concentration of hydrogen ions in soil solution, expressed as pH value. Solution with pH value equal to 7 is neutral solution; PH value less than 7 is acidic reaction; PH value greater than 7 is alkaline reaction. Soil pH can generally be divided into the following levels:

PH soil pH

<4.5 extremely acidic

4.5-5.5 strong acid

5.5-6.5 acid

6.5-7.5 neutral

7.5-8.5 alkaline

8.5-9.5 strong alkaline

> 9.5 extremely alkaline

soil pH has a great influence on soil fertility and plant growth. Many soils in Northwest and northern China have large pH values, while red soil in southern China has small pH values. Therefore, crops and plants suitable for soil pH can be planted. For example, acidophilous tea trees can be planted in red soil area, while alfalfa have strong alkali resistance, etc. Soil pH also has a great influence on the availability of nutrients, such as the availability of phosphorus in neutral soil; The availability of trace elements (manganese, copper, zinc, etc.) in alkaline soil is poor. In agricultural production, we should pay attention to the pH value of soil and take active measures to adjust it.

Update time：20240410160810