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ChemPEGS, smart and low cost soil sensors reduce the use of fertilizers

These surprising little sensors could help growers understand the best time to use fertilizers on their crops

December 18 2021
Gianluca RiccioGianluca Riccio
⚪ 3 minutes
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soil fertilizers

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In the world of crops, the dosage of fertilizers is entrusted to expert farmers, who refer to their personal experience and knowledge of vegetables.

Yet, forecasts are not always correct and optimal. In some cases, we end up using too little fertilizer, or even too much product, damaging the environment.

A new tool, a recently patented sensor, could drastically change the situation and become the favorite trump card for farmers. Nature and technology would really begin to coexist, fighting for the same cause.

The sensor we are talking about is called chemPEGS (chemically functionalized paper-based electric gas sensor), designed by the Bioengineering Department of Imperial College London. Its goal is to predict the quantities of fertilizers needed to improve the performance of the soil in the long term.

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How the idea of ​​ChemPEGS was born

fertilizer sensors
Fertilizers, more cross than delight. To help understand how many to use, we will have sensors with artificial intelligence

A few days ago, the magazine nature food, published an article dedicated to this revolutionary new discovery.

According to information released by the Doctor Max Grell, the co-developer of ChemPEGS, the machine works by measuring the level of ammonia present in the soil.
By combining this information with weather conditions, soil pH and the time elapsed since the last fertilization, the instrument is able to record the precise amount of nitrogen present in the soil.

In this way, it can predict how much nitrogen it will have in the next 12 days, and when it will be necessary to intervene with fertilizers.

The plan of the developers is to achieve a double positive return: reduce nitrogen fertilizer pollution, and lower cultivation prices.

Max Grell confirmed this in his statement, stating that: "the problem of over-fertilization is relevant both from an environmental and an economic point of view. Yields and resulting income are decreasing year after year and growers lack the tools to combat the problem"

A new life for fertilizers

Do you want to know why it is so important to reduce the disproportionate use of nitrogen fertilizers? Here are some clarifications.

Excess nitrogen is responsible for producing nitrous oxide, a gas 300 times more harmful of CO2 for the climate. Too high a quantity of fertilizers can cause serious damage to the environment, infiltrating groundwater and reaching rivers and seas.

At the same time, tests to determine soil nitrogen levels are rather slow and expensive. Without a quick and easy-to-use means, farmers have no choice but to resort to the use of fertilizer (risking to overdo it).

The production of chemPEGS could be a real revolution, a step closer to the idea of precision farming.

According to the researchers, the official version of the machine will be available on the market in about three to five years.

Will this be the definitive solution?

Tags: Precision agricultureartificial intelligencesensors


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Concrete guide for those approaching this artificial intelligence tool, also designed for the school world: many examples of applications, usage indications and ready-to-use instructions for training and interrogating Chat GPT.

To submit articles, disclose the results of a research or scientific discoveries write to the editorial staff

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