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What opportunities do biodegradable sensors have?

The more data, the better growers can control their cultivation. Sensors play a crucial role in this: they can tell, for example, how moist the soil or air is or how high the CO2 content is. Sensors have to be removed after a crop rotation, and that is fairly labor-intensive. The Business Unit Greenhouse Horticulture of Wageningen University & Research is therefore participating in a European study into sensors that are biodegradable.

Until now, sensors consist of materials that are not biodegradable. But developments are moving fast. For example, organic substances can already be used in the 'printing' of electronic parts. If a sensor is fully biodegradable, this means significant cost savings for growers and farmers: they do not have to remove the sensors after cultivation. In addition, sensors that “rollout of the printer" can also be produced in large numbers, and therefore much cheaper.

A number of parties from Germany, Spain, and the Netherlands are investigating the possibilities of biodegradable sensors within the PLANtAR project. The aim of the three-year project – which started at the end of 2020 – is to stimulate developments and support producers and potential users.

WUR is investigating the market application in glasshouse horticulture, horticulture, and arable farming and establishes design criteria for sensors in these sectors. To this end, growers and farmers are interviewed about how their business operations can possibly be improved by using biodegradable sensors. For example, can cultivation be better controlled if more data is available, or can internal processes – such as the application of crop protection – be organized better and more efficiently?

WUR's research focuses on a number of specific sensors, such as measuring moisture, conductivity, and nitrate in the soil, leaf wetness, an electronic nose for fragrances, and CO2 levels in the air. It is also being examined whether sensors that are only partially biodegradable are interesting for agricultural entrepreneurs. The research thus provides more insight into opportunities for biodegradable sensors, both in high-tech sectors and in low-tech or mid-tech crops.

For more information:
Wageningen University & Research 


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