Types of Sensors in Agriculture

Farming has changed radically in recent years. Experience or intuition is no longer enough to get the maximum yield from the field. Today, profitability depends on precision and handling real data. Knowing the different types of sensors in agriculture is the first step to stop guessing and start deciding with confidence. These tools are the eyes that allow us to see what is really happening in the soil, in the air, and inside the plant itself.

General classification of sensors

Technology can seem complex due to the large number of options that exist. To understand it better, we can divide sensors into three large groups according to the function they fulfill on the farm. Each group offers us a different piece of the production puzzle.

Soil and root sensors

They are in charge of monitoring what happens underground. They tell us how much water and nutrients are available to the roots. They are fundamental for adjusting irrigation, avoiding fertilizer waste, and ensuring that the plant always has a full “pantry”.

Climate sensors

They measure the environment surrounding the crop. They control parameters such as air temperature, ambient humidity, or solar radiation. They are essential, especially in greenhouses. They help create the perfect environment. This prevents the appearance of diseases or pests.

Plant sensors

They are the most advanced and ask the crop directly how it feels. Instead of guessing, they measure leaf temperature or photosynthetic activity. This allows us to detect plant stress long before we see visual symptoms like wilted leaves.

Soil and root sensors

What happens underground is usually invisible to the naked eye, but it is where the harvest is decided. Monitoring the root zone is vital to not waste water and ensure the plant feeds well. At INTA, we bet on technologies that measure at different depths to have a complete picture.

  • Soil moisture probes: We use advanced technology like Sentek. These probes measure moisture layer by layer, allowing us to see where active roots are drinking and avoiding excessive irrigation.
  • Hydroponic sensors (TDR): It is vital for substrate crops. We measure humidity and temperature. We also control conductivity directly in the bag. This is key to controlling drainage and root oxygenation.
  • Water quality sensors (EC and pH): Before irrigating, we must know what is in the water. These sensors guarantee that the nutrient mix is exact and that salinity does not damage the crop.

Climate sensors

The climate inside and outside the greenhouse determines if the plant will grow healthy or suffer stress. Precise environmental data is key. It allows us to anticipate problems. It also serves to automate systems like vents or heating.

  • Temperature and humidity: They are basic for calculating Vapor Pressure Deficit (VPD). Our sensors resist high humidity and help prevent fungal diseases.
  • CO2 probes: Carbon dioxide is the basic food for photosynthesis. Maintaining optimal levels increases biomass production and final yield.
  • Weather stations: They monitor the exterior climate. They detect rain, wind, and solar radiation to protect the greenhouse structure and adjust irrigation to the weather.

Plant sensors

They are the most advanced level of monitoring. Instead of supposing how the plant is based on the soil or air, we ask it directly. These sensors detect problems before the human eye can see them.

  • Leaf temperature (Infrared): They measure crop temperature without touching it. If the leaf heats up, it means it has stopped transpiring and suffers water stress, warning us to irrigate before it is too late.
  • PAR Radiation: Not all light is useful for growth. These sensors quantify the exact light. They measure what the plant uses for photosynthesis. This helps manage shading screens or artificial lighting.

Data integration

Installing the best types of sensors in agriculture is useless if the information is not used quickly. True power is achieved by connecting the devices. We use centralized management software, like our SysInta platform. This connection transforms loose data into concrete actions:

  • Smart automation: The system crosses climate and soil data. It activates irrigation or ventilation. It does so without the need for human intervention.
  • Unified view: All farm information is on a single screen. We avoid having to check multiple devices separately.
  • Remote management: It allows supervising crop status from a mobile phone. You adjust parameters remotely. It frees the farmer from being present always.

Benefits of installing sensors

Incorporating monitoring technology on the farm is not an expense, it is a direct investment in business profitability. By stopping work based on assumptions and starting to use data, results are noticed in the bottom line from the first campaign.

Water and fertilizer savings

It is the most immediate benefit. By irrigating only when the moisture probe indicates, unnecessary irrigation is eliminated. This reduces the water bill and, above all, the fertilizer bill, preventing them from being lost through drainage.

Increased yield

A plant that does not suffer stress produces more and better. By maintaining stable climate and irrigation conditions, the crop focuses on generating fruit. It does not waste energy on surviving. This translates into more kilos per square meter and better final quality.

Lower risk of diseases

Many fungi appear due to excess humidity. Poor ventilation also influences this. Climate sensors warn when conditions are dangerous. They allow acting before the disease infects the crop.

Automation and peace of mind

Delegate monitoring to sensors. It frees the farmer from being present 24 hours a day. Alert systems notify the mobile phone if something fails. This allows managing the farm with greater freedom and security.

Real sustainability

Complying with environmental regulations is increasingly strict. The use of sensors demonstrates responsible resource use. We avoid contaminating aquifers with excess nitrates. We protect the soil in the long term.

Start farming with precision

It is not necessary to change everything overnight. At INTA, we study your case to recommend the sensors you really need according to your crop. Contact us, and we will help you design a custom monitoring system to improve your profitability from day one.

Frequently Asked Questions

Is sensor installation complicated?

Most of our equipment, such as soil probes, is installed quickly and with minimal land disturbance. In many cases, wireless systems avoid having to open trenches or run cables throughout the farm.

How long does it take to recover the investment?

It depends on the size of the farm, but our clients usually amortize the equipment in one or two campaigns. The direct savings in fertilizers and water, added to the increase in production, make the numbers work out fast.

Do they work for any kind of crop?

Yes, the key is choosing the right model. There are different types of sensors in agriculture adapted to demanding hydroponic greenhouses. They also work in extensive crops or open-field fruit trees.

Do I need internet on the farm?

It is recommended to view data from home. But it is not essential for the system to work. Local controllers keep working. They save data even if the connection drops temporarily.

What maintenance do the equipment need?

They are robust devices designed for the field. Maintenance is minimal. Periodic cleaning of optical sensors is enough. Sometimes they require spot calibrations of pH probes.

Can I view data from my mobile phone?

Of course. All information is uploaded to the cloud. You can check the status of your crop. You receive instant alerts. You modify the schedule from anywhere with your mobile.

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INTA CROP TECHNOLOGY, S.L. HA SIDO BENEFICIARIO DEL PROGRAMA DE AYUDAS PARA LA PARTICIPACIÓN EN LA MISIÓN COMERCIAL INVERSA A PERÚ, MÉXICO Y EGIPTO 2024, COFINANCIADO POR EL FONDO EUROPEO DE DESARROLLO REGIONAL. EXPEDIENTE: 2024.05.MI16.000090