DEVICE FOR ACCOUNTING FOR CO IN THE SOIL-PLANT-ATMOSPHERE SYSTEM Russian patent published in 2023 - IPC A01G7/00 G01N33/24 

FIELD: agriculture.

SUBSTANCE: invention relates to gas analytical measurement tools for studying the patterns of CO₂ flows between the main components of an agricultural ecosystem in a closed cycle. The device consists of two parts: the upper part, which is a box with side edges made of transparent organic glass and the upper part made of clear glass with maximum light transmittance, and the lower part made of neutral polymer material, which is designed to place trays with soil for growing plants. Extraction of excess CO₂ and moisture is carried out through forced purging in a closed cycle with a microcompressor, where the corresponding shutter valves regulate the direction of the air mass, allowing the excess moisture to be captured by the reagent and the concentration of CO₂ into a flask with an absorbent solution. After cleaning the air from excess CO₂ and moisture to ambient values, air from outside is supplied to the installation through the valve. The light mode is supported by a phytolamp. The light level in the system is controlled by a lux meter, and soil moisture is monitored by a sensor installed in the soil tray at the bottom of the device. An irrigation system is attached to the device, consisting of a pump for water supply, a container with irrigation liquid, a main tube with adjustable spray nozzles, which are also used for fertigation and spraying plant protection products and fertilizers from separate containers. Mixing and simulating the air flow is carried out by a wind modulator, and data is collected from sensors at programmable intervals and transmitted to a digital medium.

EFFECT: ability to take into account the dynamics of CO₂ emission in real time, as well as to assess the influence of various agrochemicals on the carbon sequestration capacity of plants and soil.

2 cl, 1 dwg