Orcelis Help Centre
Practical guides on irrigation, fertigation, crop protection, field logbooks and satellite monitoring, written by agronomists. Each one answers a specific question and explains how to solve it, including with Orcelis.
Featured guides
- How to calculate crop irrigation and fertiliser month by month (fertigation)How to calculate fertigation month by month: water from ETo and Kc, fertiliser from crop needs and analyses, and irrigation time. Step by step.
- How to write a plant protection prescription (spray recommendation) step by stepHow to write a plant protection prescription step by step: pest threshold, authorised product, dose, spray volume, pre-harvest interval and signature.
- Digital farm logbook in Spain: what it is, who must keep one and howWhat Spain's digital farm logbook (SIEX) is, who must keep one under Spanish law, the 2026-2028 dates and how to keep it and get the official PDF.
- How to make a fertiliser plan by crop growth stageHow to make a fertiliser plan by growth stage: calculate UF/ha, subtract soil and water supply, split nutrients by stage and pick the product.
- NDVI of a field: how to view it and what it meansWhat NDVI is, how it is calculated, which values indicate vigour or stress and how to view your field's NDVI from satellite, date by date.
- How to register a farm and its SIGPAC plotsRegister your farm and link its SIGPAC enclosures: what a SIGPAC code is, where to find it and how to select or draw plots on the map.
By topic
Getting started
Register your farm, draw your plots and connect growers through their phone.
Field logbook and SIEX
What the digital field logbook requires under Spanish law, who must keep one and how to keep it up to date without paperwork.
Irrigation and fertilisation
Calculate irrigation and fertigation for each crop, interpret your analyses and plan fertilisation.
- Crop coefficient (Kc) by growth stage: how to adjust it
- Crop water footprint: what it is and how to calculate it
- How to calculate crop irrigation and fertiliser month by month (fertigation)
- How to make a fertiliser plan by crop growth stage
- How to read an irrigation water analysis (EC, SAR and bicarbonates)
Crop protection
Plant protection prescriptions, authorised products, pest thresholds and monitoring traps.
Satellite and indices
NDVI and other satellite indices, plus the weather forecast to decide when to spray.
Account and billing
Manage your account and your Orcelis plan.