NFC, QR code, RFID UHF and BLE beacons in agriculture

In brief

A good farm identification system does not start with choosing a tag. It starts with mapping events: who is working, what is being harvested, where a batch is created, when it reaches storage and which data will later feed into payroll, settlement or traceability processes. The technology is only the carrier of that event.

• QR has the lowest entry barrier, especially for worker cards, batch labels and crates.
• NFC works better at recurring checkpoints, because it requires someone to physically approach a location or object.
• In storage and logistics, RFID UHF is worth considering when individual scanning starts to slow down receiving, transfers or dispatch.
• A BLE beacon does not replace a batch code, but it adds useful information about presence within a defined zone.
• The greatest value comes from connecting the identifier with an application, database, reports, payroll, settlement processes and product history.

What are identification technologies in agriculture?

Identification technologies in agriculture are tools and standards that connect a physical object, person or event with a digital record in a farm management, storage management or supply chain system.

In practice, such an object may be a seasonal worker, a crate of fruit, a pallet, a raw material batch, a plot, a row, a machine, a checkpoint, a cold store or a finished product. The identifier is not an end in itself. Its role is to trigger the right process: work settlement, harvest registration, goods receiving, quality control, transport notification or sharing data on product origin.

That is why technology selection should follow the operation. A system for a team leader scanning workers on a plantation is designed differently from a system for a processing plant reading containers at a gate, and differently again from a system for a distributor tracking pallet movement between a warehouse, cold store and transport.

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Why identify workers, batches and products?

Identification in agricultural production reduces data entry time, cuts errors from paper lists and builds a product history from field to recipient. The key is to connect an event with a specific person, location, batch and time.

In an orchard or plantation, the problem starts very simply: who harvested the produce, from which plot, into which crate, in what quantity and at what quality level. When this data goes straight into an application, the manager does not need to rewrite notes after work, and settlement for seasonal workers can be based on events recorded in the field.

In a processing facility, the same mechanism works on a broader scale. A batch number connects the delivery, supplier, receiving date, quality parameters, warehouse, production line, operator and finished product. This matters for complaints, audits, certification, quality control and rapid product withdrawal.

Data must be consistent. A code on a crate is not enough if it does not lead to an organised record in the system.

QR, NFC, RFID UHF or BLE: which technology should you choose?

Choose QR when low cost and a simple start are the main priorities. Choose NFC when you need fast proof of presence or a checkpoint interaction. Choose RFID UHF when the system must read many objects at once. Choose a BLE beacon when presence or location within a zone matters.

A QR code is an optical code compliant with ISO/IEC 18004. According to the DENSO WAVE specification, a QR symbol ranges from 21×21 to 177×177 modules and can store up to 7,089 digits or 4,296 alphanumeric characters at the lowest error correction level. On a farm, this means an inexpensive label that can be attached to a worker card, crate, pallet, delivery document or product.

NFC operates at 13.56 MHz and usually requires a very short distance. This limitation can be an advantage, because it requires physical contact between the phone or reader and the identifier. In worker settlement and payroll processes, NFC works well as a card, key fob or checkpoint tag when starting work, entering a cold store or confirming that a task has been completed.

RFID UHF, often referred to as RAIN RFID, operates in the UHF band and reads tags without line of sight. The GS1 EPC Gen2 standard covers the 860–930 MHz band, while ISO/IEC 18000-63 structures radio communication for these implementations. This is a technology for larger-scale operations: containers, crates, pallets, warehouse gates, automated goods receiving and dispatch.

A BLE beacon is not a classic scanning label. It is a Bluetooth Low Energy transmitter that periodically emits a signal detected by a phone, gateway or RTLS receiver. In agriculture and agri-food, it makes sense in warehouses, cold stores, halls, loading points and anywhere information is needed that a worker, container, trolley or pallet has entered a given zone.

Table 1. Comparison of identification technologies in agriculture and traceability.

Do not try to choose one technology for the entire supply chain. Start with the process: who is scanning, what is being scanned, when the event is created and which data should later feed settlement, traceability or warehouse processes.

What does the architecture of a hybrid identification system look like?

A hybrid architecture connects several identification carriers with one data layer. As a result, QR, NFC, RFID UHF and BLE do not compete with one another. Instead, they handle different events within the same system.

This layout shows the practical trade-off. QR and NFC help start human work in the field quickly. RFID UHF requires a larger investment, but scales container and pallet flows more effectively. BLE makes sense when the very fact of presence in a zone is an operational event.

In this architecture, the event layer is the most important element. It decides whether a worker scan means starting work, assigning a task, handing over a crate, receiving a batch, changing location or triggering a quality alert.

How does identification support worker settlement and payroll?

A worker identifier turns handwritten lists and verbal arrangements into events recorded in the system. The team leader no longer rewrites names after work, but records task completion at the moment it happens on the plantation, in the orchard or during planting.

Manual harvesting: the team leader records a crate during strawberry collection

In manual harvesting, most errors occur when crates are handed over. In FarmPortal Worker, the team leader selects the plot, row or gutter, identifies the worker using an identifier and assigns the crate number. If part of the produce goes to waste, that quantity can also be recorded.

This record later makes it possible to compare worker productivity, workload across specific plots and harvest quality from different parts of the plantation. It is not just a payroll list. It is production data.

Working time: start / stop at the task, not after returning to the office

For maintenance work, sorting, seedling handling or auxiliary tasks, kilogram-based settlement does not always make sense. In this case, FarmPortal Worker operates in start / stop mode: the team leader scans the worker identifier generated in FarmPortal and starts time tracking.

If a treatment or task is added, working time can be assigned to a field, crop and specific activity. The “Current working time” view is used for live control: who currently has time being tracked, who has already finished work and whether the settlement process is running correctly.

Piecework: the amount of work becomes the basis for pay

In piecework, the consistency of the settlement unit is what matters most. It may be kilograms of fruit, number of crates, number of planted seedlings or number of prepared containers. Identifying the worker and the work object reduces later disputes, because pay is based on data recorded in the field.

For the farm owner, this means better control of labour costs; for the production manager, it allows comparison of rates, productivity and quality between teams. In short: piecework without data is difficult to defend.

Table 2. Identification technologies in plantation labour settlement.

The biggest mistake is treating an identifier as just a “worker card”. In a well-designed process, the identifier connects the person with work, location, quality, cost and result. Only then does settlement stop being administration after the fact.

How do identifiers build batch traceability?

Traceability works when the system can connect field, plot, variety, harvest date, worker, container, batch, warehouse and customer. The identifier is only the entry point into this history.

QR codes or GS1 DataMatrix work well for batches and labels, because they can be printed cheaply and dynamically. GS1 Digital Link allows GS1 identifiers to be written as a URI, connecting a code on packaging with online information such as origin, instructions, certificates, traceability data or product status.

At a larger scale, RFID UHF works better. When containers or pallets pass through an RFID gate, the system can register many logistics units without scanning each one separately. This changes how the warehouse operates: the operator no longer has to confirm every carrier manually, and the movement event is sent to the system automatically.

A BLE beacon strengthens traceability when the zone or flow conditions need to be known. Examples include a cold store, picking hall, collection point or vehicle, where the presence of a carrier may trigger an alert, status change or a record of time spent in a given location.

What does the process look like on a plantation?

On a plantation, speed matters most. Identification must not slow down the team leader or the worker, so the best process usually combines a mobile application, QR or NFC for people and QR or RFID for crates.

1. The team leader opens FarmPortal Worker and selects the farm, plantation, plot and task.
2. The worker starts work by scanning a QR code or tapping an NFC identifier.
3. The crate receives a number or QR code, and at a larger scale an RFID UHF tag.
4. The harvest is assigned to the worker, row, gutter, plot, variety and date.
5. When the crate is handed over, the team leader records quantity, weight, waste or a quality parameter.
6. The system creates data for worker settlement and batch history.

This process does not require full automation from day one. A small farm can start with QR and a phone. A large plantation can gradually add NFC for workers, RFID UHF for containers and integration with scales, storage or an ERP-class system.

What does the process look like in a processing facility?

In a processing facility, identification is mainly used for batch control, quality control and warehouse flow. Data consistency, repeatable procedures and integration with storage, production and quality documentation matter more here.

1. The delivery receives a batch number linked to the supplier, date, document and quality parameters.
2. Containers or pallets are labelled with QR, GS1-128, DataMatrix or RFID UHF.
3. The warehouse records goods receiving, location, transfer, picking for production and dispatch.
4. Production connects raw material batches with the finished product batch.
5. The system records operators, time, locations, statuses and quality control results.
6. Traceability works in both directions: from product to field and from field to product.

In this environment, QR is a good starting point, but with a large number of logistics units, RFID UHF delivers value faster. Manual scanning of each pallet is simple when there are only a few operations per day. With hundreds of movements per day, it becomes a bottleneck.

How does FarmPortal support identification?

FarmPortal supports identification when data from fields, work, harvest, storage and traceability need to feed into one operational history. FarmPortal Worker simplifies fast data entry in the field, especially for team leaders on plantations, in orchards and on farms employing seasonal workers.

FarmPortal covers work and harvest records, worker settlement, warehouse management, reports, analyses, and the management of fields, crops, machinery and documentation. These features are described in more detail on the FarmPortal modules and features page.

FarmPortal Worker is a separate mobile application, but the data entered in it is integrated with the main FarmPortal application. This matters organisationally: the team leader can work in a simpler operational interface, while the owner, farm manager or office has access to the data in the broader system.

In practice, a worker identifier can be generated in FarmPortal and used in start / stop, manual harvesting or piecework processes. Data on crates, plots, rows, waste and quality goes into reports. This creates the basis for settlement, analysis of plantation productivity and further traceability.

In the supply chain, FarmPortal can work with the concept of FoodPass and food passporting, where a batch is not just a number, but a carrier of information about origin, treatments, quality, location and flow history. This topic is also worth connecting with the article on traceability in agriculture and the material on managing and settling workers on a farm.

Who benefits most from this solution?

Identification technologies make sense for several groups, but each has a different problem. The farmer wants to settle work faster. The processor wants stable traceability. The distributor wants logistics control. The advisor or integrator wants to organise client data.

Table 3. Benefits by audience type.

Implementation checklist

Identification implementation should start with a process map, not with buying tags. First, establish what needs to be identified, who scans it, when the event is created and which data should go into reports.

1. Define objects: worker, crate, pallet, batch, plot, row, machine, checkpoint.
2. Choose events: work start, work end, crate handover, weighing, receiving, transfer, dispatch, quality control.
3. Set mandatory data: time, location, operator, weight, quality, batch number, carrier number, status.
4. Match the technology to the process: QR for a low-cost start, NFC for checkpoints, RFID UHF for bulk reading, BLE for zones.
5. Test labels in real conditions: moisture, mud, cold store, packaging, gloves, sunlight and dirt.
6. Prepare user roles: team leader, worker, warehouse operator, quality controller, administrator.
7. Build reports: worker productivity, plot productivity, cost in PLN/kg, batch history, working time, waste and quality.
8. Check integrations: FarmPortal, ERP, WMS, scales, label printer, mobile application, API.

Implementation case: Sady Doliny Wisły

Marek Wojtaszek, Production Manager at Sady Doliny Wisły, manages 42 ha of crops: 18 ha of strawberries, 14 ha of raspberries and 10 ha of blueberries. At peak season, he works with 68 seasonal workers and 4 team leaders. The biggest problem was not the harvest itself, but the later reconciliation of paper lists, crates, waste and piecework rates.

In the first stage, the farm implemented QR for workers and crates, and FarmPortal Worker for team leaders. Each worker received an identifier, and each crate was assigned to a plot, row, person and date. In the second stage, NFC was added at start / stop points for cleaning, maintenance and crop care tasks.

The biggest change appeared in the warehouse. Instead of rewriting crate numbers from paper notes, the team leader recorded receipt in the application, while the manager saw a live view of the harvest and labour cost. As the scale increased, the farm planned RFID UHF for bulk containers, because manual confirmation of larger batches had started to slow down receiving.

Table 4. KPIs before and after QR/NFC identification implementation in the Sady Doliny Wisły scenario.

For Marek, QR itself was not the most important factor. What mattered was that one event in the application connected the worker, plot, crate, waste, time and later settlement. The production manager no longer had to search for data in team leaders’ notebooks, text messages and spreadsheets.

This type of implementation works well for plantations that want to start with a simple process without closing the door to warehouse automation. QR and NFC organise people’s work. RFID UHF can be added when the scale of containers and pallets justifies gates, antennas and read tests.

FAQ

Glossary

QR code

A two-dimensional optical code that can be printed on a label and read with a smartphone or scanner.

NFC

Near Field Communication, a short-range technology used in cards, phones, tags and checkpoints.

RFID UHF

A radio-frequency identification technology in the UHF band, used to read tags on containers, pallets and logistics units.

RAIN RFID

The name of the passive RFID UHF ecosystem based, among others, on GS1 UHF Gen2 and ISO/IEC 18000-63 standards.

BLE beacon

A Bluetooth Low Energy transmitter that periodically emits an identification or telemetry signal detected by receivers.

Traceability

The ability to track the history of a product, batch or raw material through successive stages of production, storage, processing and distribution.

GS1 Digital Link

A standard for writing GS1 identifiers as a URI, allowing a 2D code to connect product identification with online information.

Piecework

A work settlement system based on completed quantity, such as kilograms of fruit, crates, seedlings or other production units.

Checkpoint

A control point where a worker, container or product confirms presence using QR, NFC, RFID or another technology.

Summary and recommendation

No single technology can serve the entire supply chain well. A team leader on a plantation needs one tool, a warehouse operator receiving containers needs another, and a processing facility that must connect a raw material batch with a finished product needs something else again.

The most sensible model for a farm, plantation, processing facility and distributor is a hybrid architecture matched to events: a low-cost identifier where people work, bulk reading where many carriers are moving, and zone-based location where presence itself triggers a process or alert. Such a system delivers the most value when it is connected with an application, database, reports, settlement processes and traceability.

If you are starting from scratch, begin with a simple process: worker identifier, crate identifier, plot, task, time and quantity. Add automation only after that. A fast start is more important than a perfect architecture on paper.

Call to action: If you want to organise worker settlement, harvesting, batches and product history, explore the FarmPortal features for farm management, settlement and traceability or prepare a list of processes that are currently paper-based. This is the best starting point for implementing QR, NFC, RFID or BLE in practice.

Sources and standards used editorially

This article was prepared using documentation and standardisation materials related to QR Code, GS1 Digital Link, NFC, RFID UHF / RAIN RFID and Bluetooth Low Energy. The two most important technical sources for editorial verification are:

• DENSO WAVE: QR Code standardisation and outline specification
• GS1: GS1 Digital Link standard