Soil Moisture Content

Soil moisture content generally refers to the absolute soil moisture content, that is, 100g of dried soil contains several grams of moisture, also known as soil moisture content. Determining the soil moisture content can grasp the needs of crops for water, and has very important guiding significance for agricultural production. The main methods are weighing method, tensiometer method, resistance method, neutron method, r-ray method, standing wave ratio Method, time domain reflection method, high frequency oscillation method (FDR) and optical method. The moisture content in the soil is called soil moisture content, which is expressed by the relative proportion of moisture in the soil three-phase body (solid framework, water or aqueous solution, air), usually using weight moisture content (θg) and volume moisture content (Θv) Two representation methods.