Plantae has already installed sensors in greenhouse watermelon. This time it is in open air cultivation.

We will explain the importance of controlled irrigation in the cultivation of watermelon, this fruit so refreshing and essential in the summer.

Watermelon characteristics.

Watermelon is an herbaceous plant with:

  • A highly branched root system and a main one that goes deeper.
  • It has a creeping and broad stem of development.
  • It is not demanding with the type of soil, it suits you well fertilized and rich in organic matter.
  • It prefers a good temperature but adapts well to temperate climates that have many hours of sun. In northern Spain, production is at the family level.

Watermelon varieties

The types of watermelon are influenced by:

  • Green color that varies from light to dark. It can be uniform or veined.
  • Size ranging from 2 to 15 kilos.
  • Shape: cylindrical or oval.
  • With or without seeds.
  • Crust thickness.

Variedades de sandía


  • Padded grooves are made: they favor temperature and humidity, prevent other herbs from growing.
  • The transplanted plants are installed.
  • We place humidity and temperature sensors.

Sensores en sandía

Watering control of watermelon

Riego de la sandía
Own elaboration scheme

The watering phases of the watermelon, in addition to being adapted to their growth period, must be controlled as proposed by Plantae , in the way following:

  • Humidity sensors: the humidity of the subsoil is controlled at different depths and we avoid waterlogging while saving water and energy.
  • Flowmeter: allows real-time reporting of the irrigation applied as well as deficiencies between the actual irrigation and that estimated by the farmer, technician or irrigator, as well as the correlation of data between contributed liters and soil moisture.
  • Ambient temperature sensor : it will indicate the ideal time for watering, prevent possible frost and assess the time of flowering, among others.
  • Subsoil temperature sensor : indicates the temperature at different depths. This new data will allow controlling the temperature in the subsoil and comparing the data with the ambient temperature and other parameters.

Sources consulted: