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Wireless sensors in the field: when the agriculture becomes smart farming

Less waste, more efficiency. In agriculture, this is a real possibility: just use the right tools such as wireless sensors.

The wireless sensors are part of IoT (Internet of Things): technology that measures and detects data of interest with extreme reliability, then transmits them and, if necessary, processes them in order to give a valuable support to the farmer’s decisions. Thanks to wireless sensors, in fact, you have acquiring a thorough knowledge of the soil and the plant, useful to make treatments in the best time and only in the proportions necessary for the purpose.

The main benefits:

  • reduction of plant protection costs and / or fertilizers;
  • reduced environmental impact;
  • reduced waste of valuable resources such as water;
  • higher yield;
  • healthy and lush fruits.

Here are some of the most used sensors.moisture_sensor

Wireless sensor soil moisture
It measures the volumetric water content in the soil on the basis of the dielectric constant of the soil. The data is useful to proceed with the irrigation.

Wireless EC sensor
It measures the conductivity of the ground. The conductivity value depends on salinity and nutrients in the soil. This data are crucial to decide the dose, the composition and the times of fertilzer treatments.
The excess of fertilizer, in fact, may create substantial damage to the plant. The mineral salts generally tend to bind themselves to the water. If the fertilizer – that it contains large number of mineral salts – is placed in an rich soil of these substances, it can compete with the roots, steal their water and force them to come out of the ground. In turn, this would cause a greater exposure of the plant to the weather and the non-intake of other nutrients supplied by the subsoil.

Wireless pH sensor
The pH is important to determine the acidity of the soil, which varies according to the availability of nutrients in theph solution water / soil. The value affects both soil fertility and the ability to absorb nutrients.
Specifically, the waters are rich of carbonates which generally tend to alkalize the soil (an alkaline soil can become compacted). The plant, on the other hand, by absorbing water, tends to acidify (an acid soil, in the presence of clay, becomes waterproof). The ph detection is therefore essential to understand how to fertilize it properly in order to create the right environment for an abundant production.
In addition to the specific sensor for the soil, the sensor is also provided to measure the water pH.

Wireless diametric growth sensor
It detects millimeter variations of the stem, the branches and the fruit of the plant, and it’s used to check in real time the plant health, especially in cases of water stress.

Wireless sensore Tensiometer
It detects the force used by the roots to absorb the water. It ‘a useful tool for irrigation interventions.

Not only that, the wireless sensors can be integrated into an IoT system (Internet of Things), advanced yet easy to use, which detects the data in the field and then processes them on the basis of sophisticated predictive models in order to, for example, alert the onset of diseases on advance. A revolution that brings great benefits to the grower.

The wireless sensors that measure the meteorological conditions are widely used in these Internet of Things (IoT) system, as it is by the combination of humidity, temperature and leaf wetness that depend most of the fungal infections.

The land hides secrets and the wireless sensors reveal them.

(Source –  http://www.auroras.eu/wireless-sensors-in-the-field-agriculture-becomes-precision-farming/#sthash.2mEeKV6u.dpuf)


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