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Soil moisture has different sources. The soil moisture mainly comes from atmospheric precipitation and irrigation water. In addition, the increase of groundwater and the condensation of moisture in the atmosphere is also the source of soil moisture. The content of soil moisture can be measured using a soil moisture temperature measuring instrument. Soil moisture has different forms, one of which is capillary water. What is capillary water? The so-called capillary water is the moisture retained by the capillary force generated by the capillary pores in the soil. This is called capillary water. There are two types of capillary water:
1. Capillary support water (capillary rise water): The capillary water associated with the groundwater level in the soil is called capillary support water. Capillary support water is closely related to groundwater and often changes with changes in groundwater level.
2. Capillary water: The capillary water that is not associated with the groundwater level in the soil is called capillary water. In the loamy soil where the capillary system is developed, the suspended water mainly exists in the water-holding pores. However, the undeveloped sandy soils of the capillary system and the suspended water mainly surround the places where the sand grains contact each other, and are called contact waters.
The form of soil moisture is different, but the ultimate effect is the same, both to promote the growth of plants, crops, and increase production. Different plants have different requirements for soil moisture, so we need to use the soil moisture temperature tester to make accurate irrigation.
Human production and life are inseparable from water, and the growth of plants must also have water. However, the supply of water needs to be within an appropriate amount, and it is generally necessary to measure the moisture content of the soil with a speedometer, so that it is possible to analyze how much water the plant needs for growth. Too little soil moisture is not conducive to the growth of the plant. Too much soil moisture tends to rot the plant roots, so irrigation needs to be precise.