During the growth of crops, we often apply phosphate fertilizers, nitrogen fertilizers, etc., and even stagger the maturity period when the crops require more nutrients. This leads to a serious imbalance of nutrients in the soil, and the production potential of crops is not fully utilized, leading to a lot of planting of spring millet. As a high-tech method, soil analyzers can help farmers change the problem of excessive fertilizer waste during the planting process, realize scientific fertilization, and achieve the effect of increasing production and income.
The portable farmland soil fertility online detector can help farmers standardize the way of fertilization. From the single fertilization method in the past to the application of formula fertilizer, the previous single fertilization is divided into separate fertilization during the seedling stage and the heading stage to ensure crop growth and development The rationality of required nutrients balances soil nutrients, improves fertilizer utilization and comprehensive production capacity of arable land, reduces fertilizer pollution to surface water sources, and enhances crop disease resistance. The economic benefits of farmers have been significantly improved.

Smart temperature and humidity sensor applications:
1. Application in industrial production
In the textile, electronics, precision machinery, ceramic industry and other sectors, air temperature and humidity directly affect the quality and output of products, and effective monitoring and control must be carried out. The use of temperature and humidity sensors can record relevant data timely and accurately, and provide reliable data for construction.
2. Application in agriculture and animal husbandry
In the production of agriculture and animal husbandry, especially in the production of some cash crops, humidity control is as important as temperature control. Controlling it in a suitable growth range for crops, trees, livestock and poultry is a condition for reducing pests and diseases and increasing yield. one. To determine the impact of temperature and humidity in the environment on the growth of seedlings, wireless temperature and humidity sensors are also needed for data collection and monitoring in order to obtain economic benefits.
3. Application in cold chain logistics
In order to ensure the freshness and quality of the transported goods, we must first ensure the appropriate temperature and humidity in the cargo compartment during transportation, and then it is necessary to use a combined temperature and humidity monitoring system to monitor or monitor the temperature and humidity in the cargo compartment.
4. Application in warehouses and warehouses
Various items have certain adaptability to the environment. If the humidity is too high or too low, the product will lose its original performance. For example, in high-humidity areas, electronic products are seriously damaged in the warehouse, non-metal parts will become moldy, and metal parts will corrode and rust.
5. Application in laboratories and drug storage
According to relevant national regulations, drug storage must be controlled according to relative temperature and humidity.
6. Application in the industrial control industry
Mainly used for HVAC, computer room monitoring, etc. Environmental control in buildings is usually temperature control.
7. Application in archives and museums
Paper products and cultural relics are extremely sensitive to temperature and humidity. Improper storage will seriously reduce the storage life. Reasonable monitoring of temperature and humidity can protect cultural relics and paper products.

Weather station observation instruments can monitor wind direction, wind speed, temperature, humidity, pressure, rainfall, soil temperature and humidity and other conventional meteorological elements, and have functions such as automatic recording, over-limit alarm and data communication. The automatic observation station is composed of three parts: weather sensor, weather data recorder, and weather environment monitoring software.

The influence of solar radiation on the geographical environment
Solar radiation directly provides the earth with light and heat resources, and the growth and development of life on earth cannot be separated from the sun. Solar radiant energy also maintains the surface temperature and is the main driving force that promotes the movement of water bodies, atmospheric movement and biological activities on the earth. At the same time, solar radiation is the main source of energy for external forces in geological processes, and various external forces work together to change the shape of the earth's surface. The law of solar radiation decreasing from low latitude to high latitude forms one of the laws of natural zone distribution: the law of latitude zone differentiation.
The influence of solar radiation on human production and life
Solar radiant energy is the main energy source of solar cookers, solar water heaters, and solar power stations used in our daily life and production. Fossil fuels such as coal, oil, and natural gas, which are the main energy sources for industrial production, are solar energy accumulated after biological fixation during the geological historical period. Most of the water energy used by hydropower stations is converted from solar energy; the biological energy that humans cannot live without is also converted from solar energy. Smart agricultural greenhouses are also developed by making full use of the sun's light and heat resources.
In fact, people began to use solar radiation a long time ago. The earliest record can be traced back to the Zhou Dynasty in my country. The Zhou Dynasty invented and used "Yang Sui", which is a concave mirror made of copper to gather sunlight and ignite the wormwood. Moxibustion. With the development of science and technology, people have gradually realized that the role of solar radiation is more than that, and various sensors have been made to monitor and study solar radiation, among which the total solar radiation sensor is widely used.
As the name suggests, the total solar radiation sensor can be used to measure the total radiation value under the sun. At present, the photoelectric total solar radiation sensor and the pyroelectric total solar radiation sensor are commonly used.
Photoelectric and thermoelectric solar radiation sensors can use 485 or analog output, can read and convert the current total solar radiation value, simple wiring method, beautiful appearance, small installation space, widely used in solar energy utilization, meteorology, Departments of agriculture, building materials aging, and air pollution do solar radiation energy measurements.

The soil moisture and fertility can be measured quickly tested by using a soil moisture meter and soil npk meter.