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Terms of sale

1. Who provides the service

Luis José Valdez Rospigliosi, self-employed, trade name Tres60 analytics, NIF X1982393T, address Av. José Manuel Baena Martín 5, Bloque 3, 5.º B, 31006 Pamplona (Navarre), Spain, email [email protected] (hereinafter “Tres60”).

2. Who they apply to

These terms apply to the services of Tres60 ordered by professionals for the purposes of their business: farmers, farming businesses, cooperatives, seed companies and other businesses. Our services are not offered to consumers.

3. The services

  1. Free diagnosis. We interpret the soil test you already have and tell you what is in excess and what your crop is missing. It includes a nutrient plan for the field of that soil test, as the groundwork for your own. It does not include maps. Terms in section 7.
  2. Nutrient balance, Essential level. One composite sample per 25 hectares (62 acres); zones obtained by combining your test with five seasons of satellite images; Practical Report, nutrient plan and a map for the tractor. Minimum 25 ha (62 acres).
  3. Nutrient balance, Premium level. One sample per 5 hectares (12 acres); zones drawn from your own samples; Practical Report, Full Report, nutrient plan and a map for the tractor. Minimum 25 ha (62 acres).
  4. Follow-up. In the years without a soil test, we redo the plan and the map from your last test. Valid for the two seasons after the test.
  5. Add-ons: microbiome analysis (what lives in your soil) and irrigation water quality analysis. If you add them to Essential, you also receive the Full Report.
  6. Crop scouting with a drone. Flight, image processing and delivery of the maps with what was found, in an app, or of a zone map for the spraying machine. It can be ordered on its own. Minimum 25 ha (62 acres). There is a free test flight on the terms in section 7.

The 25 hectares (62 acres) must be one working unit: the same crop, managed the same way, in the same season. It can bring together several blocks of one holding, but not scattered fields in different places. For example, 12 ha (30 acres) in one place and 13 ha (32 acres) 10 km (6 miles) away are two farms, not one of 25.

The price includes taking the samples and the laboratory. Charged separately, including for crop scouting with a drone: travel from Pamplona, at €0.40/km round trip, and subsistence allowance: €27 per field day; if we have to sleep away, €54 and the lodging at actual cost. If you prefer, you take the samples yourself: we explain how and where by video call or email. The report is in English. Tell us which method the laboratory used. We work with Mehlich-3, Olsen and Bray-1 results; if it used another, we tell you before you pay. We do not spray with drones. The exact content of each job (sampling, deliverables and price) is in the accepted quote, which prevails over this description.

4. How to order

  1. You ask us for a quote by WhatsApp or email.
  2. We send you a written quote, with the identification of Tres60 and its NIF, a description of the service, the price and taxes, the time to carry it out and a validity of at least fifteen calendar days.
  3. You accept the quote and these terms in writing (email, WhatsApp or by signing the document), expressly including Spanish law and the courts of Pamplona (section 18). Until then there is no contract.
  4. We confirm receipt of your acceptance within 24 hours at most, by the same means.
  5. The contract is concluded in English. We keep the quote and the acceptance; you can ask us for a copy.

5. Price and payment

Prices in the quote are in euros and exclude VAT, unless stated otherwise. The applicable VAT treatment is shown on the invoice. If you pay 100% when you accept the quote, we deduct 3% of the amount before VAT. There are also discounts by area, which you will see on the quote. Method of payment: bank transfer. When the quote is accepted you pay an advance, and the work starts with it: 30% for the Essential balance, 50% for Premium and for crop scouting with a drone. The rest is due on delivery of the report, within 15 days of the invoice. If unforeseen costs become necessary (for example, a second sampling because of something that depends on you), we tell you before we incur them.

6. What you need to give us

  • Accurate and complete data about the farm (crop, area, expected yield, irrigation, previous fertilization).
  • Your soil test, if you have one.
  • Access to the fields to sample or fly, and the permission of the owner or landlord if the field is not yours.
  • To tell us about anything that affects the work (change of crop, sowing, tillage).

If data is missing or has errors, the deadline is extended, and we are not responsible for what is calculated with that data.

7. Free diagnosis and test flight

These are introductory offers, once per client. They do not oblige you to order anything and they cost you nothing, except the travel for the test flight in the case set out below.

  • Free diagnosis: from 25 ha (62 acres). You send us photos or a PDF of your full soil test, not more than three years old; you fill in a questionnaire about the history of the field, and you answer our questions. In return, we ask you to tell us afterwards what fertilizer you spread and what you harvested. You accept this in writing before sending us your soil test: replying “I accept” by WhatsApp or email is enough. We use that data to check and improve our calculation and for statistical studies across all clients, without names or anything that identifies you. We never publish your farm data. The privacy policy explains it.
  • Test flight: a launch offer, valid while it is published on this website. Five hectares (12 acres) of your field, free if it is 100 km (62 miles) or less by road from Pamplona. Further away, you pay only the travel, at €0.40/km round trip, and we tell you before we go. The flight date depends on the crop season, the weather and our diary. In return, we ask you for a short survey after delivery: what was useful and what you would improve. If we wanted to publish anything about your case or your opinion, we will ask your written permission first, only for what you authorize, and we will say it was a free service.

8. Deadlines

  • If you already have the laboratory test: report within three working days of receiving all the data.
  • If samples are needed: three weeks, including the laboratory.
  • Quote: within 24 working hours.
  • Drone flight: date agreed with you. It depends on the weather, the state of the crop and flight regulations. If it has to be postponed, we tell you and look for another date.

Deadlines run from the acceptance of the quote and from receiving everything needed. We are not responsible for delays caused by outside factors (laboratory, weather, flight restrictions, no access to the field).

9. What the report is and what it is not

What we deliver is a technical recommendation based on the soil test, the water, the images and the data you give us, and on a calculation that estimates what the plant will be able to take up. These are reasoned estimates, not measurements of your field, and we say so in every report. That is why:

  • We do not guarantee a harvest or an agronomic result. The only saving guarantee is the one in section 10. Outside it, the saving you see in a report is the calculation for that test and those prices at that time.
  • The decision and the application of the plan are yours. You choose whether to follow it, how far and when.
  • Any nutrient plan or records required by the rules where you farm (for example, in a Nitrate Vulnerable Zone in England) are the responsibility of the farm holder. Our report is a tool to help you prepare them; it does not replace your obligations. It is not an official NRCS 590 plan in the United States.
  • In the detection maps, each finding carries a degree of certainty. A marked patch can be a false positive, and an unmarked patch can exist. It is better to check in the field before treating or declaring a loss. We do not guarantee that an insurer or an expert will accept the map as evidence.
  • We do not recommend plant protection products (pesticides) or application rates.

10. 30% fertilizer saving guarantee

It applies to the nutrient balance, Essential and Premium levels, and to the follow-up of the following seasons. It does not apply to the free diagnosis, to the add-ons or to crop scouting with a drone.

What we guarantee. At the start of the season we compare two plans: yours (what you were going to spread) and ours. Ours saves you at least 30% of the money you spend on fertilizer on those fields.

It is a saving calculated on the plan. It does not guarantee the harvest: what happens afterwards in the field (weather, pests, how the fertilizer is applied) is outside it.

What you have to give us. Before we make the plan, and in writing, two documents: your fertilizer budget with the amounts you were going to spread on each field, and the invoice showing the price you pay for that fertilizer. The saving is calculated with those amounts and those prices. Without both documents, the guarantee does not apply.

How it works.

  1. We do the analysis and work out the plan.
  2. If the saving reaches 30%, we deliver the report and you pay the rest as section 5 says.
  3. If it does not, we tell you before invoicing the rest, with the calculation in view. You choose: not to pay for our service, and the work ends there, with the laboratory results yours to keep; or to sign a separate agreement for the saving that does come out and receive the full report.

Samples and laboratory. Taking the samples and the laboratory are always paid, with the advance, and are not refunded: the tests are done and they are yours. The guarantee covers only our service, which is the interpretation, the plan and the map.

After the harvest. Our service ends when we deliver the report, at the start of the season, and it is charged at that moment. We do not wait for your harvest. When you have it, you give us what you spread and what you harvested.

The following season. If you want to carry on, the following season is a follow-up (section 3) and keeps the 30% guarantee, on the same terms. For that, the data from your previous harvest is essential. If you do not order the follow-up, the following season does not have our guarantee.

Your data. We also use the data from your documents and your harvest for statistical studies across all clients, without names or anything that identifies you. We never publish your farm data.

11. How you can use the report

We give you a non-exclusive licence to use it for your farm. You may not resell it or pass it on. The maps and the files for machinery are for your use. The calculation, the method and the system that produce them belong to Tres60.

12. Collaborators

For some jobs we rely on laboratories and technical providers. We remain responsible to you for what we deliver. These collaborators handle your data only for your service, under a data processing contract.

13. Data and confidentiality

We handle your data as the privacy policy explains. Your data, tests and maps are kept confidential. We do not pass them to anyone without your permission, except where the law requires it.

14. Liability

We are responsible for the damage we cause by not complying with what was agreed, with the diligence of a professional. Except in cases of wilful misconduct or gross negligence, our liability is limited to the price of the specific service that gave rise to the claim. We are not responsible for decisions you take without applying the report, or for losses due to outside causes (weather, pests, prices).

15. If you are not satisfied with the work

If the report has an error of ours, we correct it at no cost. If you want to cancel a job already accepted, tell us in writing:

  • Before it starts: at no cost.
  • Once it has started (samples taken, flight done or test ordered from the laboratory): you pay for what has been done and for the costs we have already incurred with third parties.

16. Complaints

Write to [email protected]. We acknowledge receipt and answer in writing as soon as possible, and always within one month.

17. Force majeure

Neither party is responsible for a delay or failure caused by events beyond its reasonable control (extreme weather, closure of airspace, strikes, general failures of supply or communications).

18. Changes, governing law and courts

These terms may change. The version in force on the day you accept the quote applies. Spanish law applies. Any dispute about these terms or the services falls under the courts of Pamplona (Spain), unless a mandatory rule says otherwise.

Version of 25 October 2026.