Plantae takes another step forward in its quest to research and improve precision agriculture with sensors that measure relative humidity and ambient temperature.

What is relative humidity?

Moisture is the amount of water, water vapor or any other liquid that is present on the surface or inside of a body or in the air.

Relative humidity is, according to Rae, the percentage expression of the amount of water vapor present in the air with respect to the maximum possible for given pressure and temperature conditions.

For example, if we measure the relative humidity and it is 40%, it indicates that the air is dry because it would need to absorb 60% of water to reach 100%. If, on the other hand, it is 80%, we will have a very humid environment and absorption would be minimal.

Applications to agriculture

In agriculture, prediction is very important, especially for:

  • The control and forecasting of pests that depend on the measurement of leaf moisture that we can obtain with a formula in which one of the magnitudes is relative humidity.
  • Fungal diseases , due to the fact that certain thresholds are necessary for their proliferation and the measurement of relative humidity .

Relationship between certain plant behaviors and relative humidity

  • Irrigation and relative humidity : there is a direct relationship between the two. When the relative humidity value is very low, evapotranspiration increases. For this reason, it will be necessary to water with one strategy or another depending on that humidity.
  • Nutrition and relative humidity : there is an inverse relationship between the two. When the humidity is very high, the plant will perspire less, therefore it will absorb less water and fewer nutrients.

It also affects processes such as pollination, flowering ... Here it is also important to have the temperature data that will help us in phenological states.

Diseases it causes

Humedad relativaOutside temperature control

The humidity must be linked to the measurement of the outside temperature, this will allow a greater control of the crop.

The most important controls for agriculture are:

  • Calculation of cold hours.
  • Calculation of thermal integral / heat hours.
  • Frost forecast.

Effects on pollination

If the humidity is high, pollen accumulates in the environment and does not travel easily from the male organ of the flower to the female. If the humidity is low, the pollen has difficulty adhering to the stigma.

Plantae sensors

Plantae is aware of all the problems that can affect a plantation and in our objective of promoting precision agriculture we conduct research that:

  • They can mitigate plant diseases.
  • Product quality and quantity are promoted.
  • Energy saving.

Our latest project is to measure relative humidity with sensors and combine the results with other factors such as the thermal integral between hot hours and cold hours.

All this combined with sensors that provide information on the subsoil, measuring humidity and conductivity, will make agriculture accurate and profitable with minimal investment by the farmer.