sensor

Dynamic changes in soil moisture Irrigation directly affects the dynamic changes in soil moisture . Different irrigation methods will lead to different sizes and water distribution of soil wet bodies. For example, different irrigation methods such as sub-film drip irrigation, underground drip irrigation and micro-wetting irrigation will have a significant impact on the size and water distribution of soil wet bodies. Studies have shown that sub-film drip irrigation and underground drip irrigation can form larger soil wet bodies, while micro-wetting irrigation can make the water distribution of soil wet bodies more uniform. Improvement of soil permeability Water-saving irrigation improves soil drainage performance by reducing soil overwetting and increasing soil porosity and permeability. Reducing soil moisture content and reducing soil pores blocked by water increases the number of large pores and improves soil permeability. In addition, water-saving irrigation can also improve soil str...

Soil moisture is a key factor affecting crop yield. The following is a specific analysis of the effect of soil moisture on crop yield: Importance of soil moisture to crop growth Soil moisture is essential for crop growth. Appropriate soil moisture can provide sufficient water supply to meet the growth needs of crops, thereby promoting the healthy growth of crops. However, excessive or insufficient soil moisture will have a negative impact on crops. When there is too much soil moisture, the soil aeration will be poor and the roots will not be able to breathe normally, thus affecting the physiological activities of plants. In addition, excessive moisture can easily cause soil compaction, making it difficult for the roots to grow smoothly and reducing the water absorption capacity of plants. In this way, the root development of crops is restricted, growth is slow, and even diseases such as root rot may occur. Relationship between soil moisture and crop yield The relationship between soil...

Drought is a serious meteorological disaster that has a profound impact on agricultural production, ecological environment and water resources management. Among them, the impact of drought on soil moisture is particularly significant, as shown below:   Decrease in soil moisture Under drought conditions, precipitation is significantly reduced, resulting in insufficient soil moisture replenishment, which in turn causes a decrease in soil moisture content. Soil moisture is the basis for plant growth, and its reduction will directly affect the normal physiological activities of plants and even cause plant death.   Uneven distribution of soil moisture Drought can cause uneven distribution of soil moisture in the vertical and horizontal directions. For example, shallow tillage soil moisture is mainly stored in the topsoil of 5~20~25 cm, while less moisture is stored in the 20~25 cm soil layer. This is because in the case of shallow tillage, the deep soil is not turned over, forming...

Definition and function Soil moisture refers to the amount or proportion of water contained in the soil. It is an important variable that controls the water and energy exchange process between land and atmosphere. It plays a vital role in the horological   cycle and climate system, and is also very important for agricultural drought monitoring and prediction. Appropriate soil moisture is essential for the root development of crops. It can promote the growth and expansion of the root system, increase the contact area between the root system and the soil, and improve the root system's ability to absorb water and nutrients, thereby increasing the growth rate and yield of crops. At the same time, soil moisture will also affect the regional ecosystem. When its water content is lower than the water requirement of plants, disasters may occur. It has been widely used in the monitoring of regional drought.   Influencing factors Climate conditions Climate factors such as precipitation,...

1. Definition of "Soil Moisture Condition" Soil Moisture Condition  refers to the state of water content in soil, which is the condition of soil humidity. It can be expressed as a percentage of the soil's water content relative to the dry soil weight, or as a percentage of field capacity or relative to saturation capacity. II. Existence Forms of Soil Moisture Conditions Soil water exists in soil pores, especially in small and medium-sized pores, while large pores are often occupied by air. Plant roots interlaced with soil pores absorb water from water-filled soil pores. A gradient of humidity exists at the interface between water and air in the soil. As temperature increases, the gradient intensifies, and water turns into water vapor that evaporates and escapes the soil surface. The combined loss of water through transpiration and evaporation is called xenotransplantation , representing the two pathways for soil water to enter the atmosphere. III. Key Indicators of Soil ...

The Importance of Soil Testing Soil Testing  is an important work in agricultural production. It helps us understand various properties of the soil, including moisture content, nutrient content, pH value, and pollution status. These data are crucial for agricultural production as they directly affect the growth and yield of crops. Soil Moisture Monitoring Soil Moisture refers to the water content in the soil. By testing, one can understand the moisture status of the soil, thereby guiding scientific irrigation to ensure that crops are not affected by excessive or insufficient water, which could impact yield or quality. Soil Nutrient Testing Soil Nutrients  are essential for plant growth, and a reasonable content of soil nutrients is crucial for the growth of crops. By testing, fertilization work can be guided to ensure that crops receive the appropriate amount of nutrients, thereby improving the yield and quality of agricultural products. Soil Pollutant Detection The detection ...

The increasing scarcity of water resources has become a global problem. Saving water and achieving efficient water use are the needs of human survival and development, as well as the needs of the global economy and society. Agricultural water consumption accounts for 70% of the total water consumption in China, and the problem of inefficient agricultural irrigation and wasteful water consumption is widespread. Developing water-saving agriculture and improving the efficiency of agricultural water use is an important part of China's water-saving strategy. Agricultural automatic irrigation system consists of automatic control technology and sensor technology, communication technology, computer technology equal to an integrated irrigation management system. The system is mainly designed for daily irrigation control and management in the fields of farmland, gardening, and facility agriculture, and through modern scientific and technological means to reduce labor costs, improve the effic...

Before using traditional soil testing instruments to test soil moisture content, inspectors mainly used measurement methods such as dry weighing method, tensiometer method and dielectric property method to monitor soil moisture. However, when performing actual soil moisture testing work, you will find that these testing methods can hardly meet the current status of different measurement locations or different soil properties. Therefore, there is a need for more efficient and accurate soil moisture measurement instruments for research. Soil moisture tester is an important soil testing instrument developed with the development of science and technology and combined with the needs of China's agricultural research and production to determine the soil moisture content. At present, the instrument has become an indispensable instrument in soil moisture content research and testing. In agricultural planting, soil moisture sensors guide the irrigation work in agricultural planting, it is a...

With the continuous development and improvement of greenhouse technology, greenhouse planting is accepted and adopted by more and more people. Especially the demand for vegetables is huge. Natural planting restricted by seasons and weather cannot meet the needs of the market. More and more growers are turning to greenhouses to produce vegetables, and the most sought-after vegetables must have the name of cauliflower. The market promotes production, and growers tend to plant cauliflower when they grow vegetables. However, incorrect planting methods will not only not bring high economic benefits to the growers, but also make the growers pay for the cost of investment. Then, how to plant can effectively avoid losses and increase planting yield has become a matter of close concern to growers. . Sowing seeds directly into the soil is inconvenient for the management of cauliflower seeds and seedlings. The planting of cauliflower generally involves sowing the seeds in a concentrated place fir...