Temperature sensor in soil and subsoil-Edaphic study of the crop

The soil temperature sensor is demanded by the horticultural sector to know the temperature at different depths in addition to other crops such as grass in the garden.

This new data will allow controlling the temperature in the soil and subsoil and comparing the data with the ambient temperature and other parameters.

Soil temperature sensor applications

  • Temperature control on land at different depths.
  • Know the temperature of the roots, which indicates the beginning of the root activity of the crop.
  • Compare the data with room temperature and other parameters to make growth models.
  • Identify the best time to start with nutritional and water intake.
Temperature sensor
Temperature sensor

Soil Temperature Sensor Technical Data

The temperature of the agricultural soil conditions the microbial processes that take place in the soil. Temperature also influences the absorption of nutrients, especially phosphorus, which is lower in cold soils.

Es importante porque influye:

  • In biotic processes.
  • In chemicals.
  • For germination that is normally above 5ºC and that is measured in real time with the soil temperature sensor.

Each plant has its specific requirements.

The top layer of agricultural soil suffers the greatest temperature fluctuations. The temperature of the surface layer is transmitted upwards to the air, and downwards to lower layers of the soil and to the subsoil, damping rapidly especially downwards.

Water, an essential resource in plants, can be a scarce good on many occasions, so many crops depend on irrigation. A new study shows that the temperature of the soil influences the way in which the plant acquires this resource. According to scientists, if the soil temperature decreases, even with enough water to meet the demands of the plant, trees such as olive and almond trees have a harder time acquiring water resources.


Edaphic study

Because the synthesis of hormones and other substances occurs in the roots, in addition to the intake of water and nutrients, the temperature of the root zone has marked effects on the growth and development of the plant.

In general, the growth and development of the plant increases when the edaphic temperature increases to a maximum level between 25 and 35 ° C, depending on the species; in the same way, there are minimum edaphic temperatures (between 8 and 15 ° C) for development.

Each species has in the different stages of its development its own requirements of the edaphic temperature.

Given the greater sensitivity, the plant in its initial growth (germination and seedling stage) requires higher edaphic temperatures than in the maturation processes of its organs.

The underground organs of plants do not have the ability to regulate their temperature, so the cardinal temperatures (minimum, optimal and maximum) for root functions and tuber development are more marked than for aerial organs.

The cardinal edaphic temperatures depend on the origin of the species; tropical plants generally do best between 20 and 25 ° C.

Sensores de temperatura de subsuelo
Floor temperature sensor

Sources consulted:

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