Horiba-nitrattester
The Horiba nitrate tester has been used for several years in Denmark to measure the nitrate concentration in potato tops for potatoes grown for starch production. The results are used to estimate how much nitrogen should be applied during the final supplementary fertilization.
After calibration, the nitrate tester is used by cutting off the potato tops and pressing juice from the leaves and stem onto the sensor on the tester, whereafter the nitrate concentration is displayed on the device.
The tester can be a valuable tool for avoiding over-fertilization of starch potatoes, thereby helping to maintain the starch content in the tubers, while also potentially reducing fertilizer use and minimizing the risk of nitrogen leaching.
Access the tool
| Name in original language | Horiba-nitrattester |
| Name in English | Horiba-nitrattester |
| Designer/ manufacturer | Horiba |
| Accessibility | Sold commercially |
| Weblink | https://www.horiba.com/int/water-quality/products/detail/action/show/Product/laquatwin-no3-11c-no3-11s-no3-11-794/ |
| Countries of primary use | Denmark, global |
| Main language | English |
| Other languages available | None |
| Brief description of the tool | The Horiba nitrate tester has been used for several years in Denmark to measure the nitrate concentration in potato tops for potatoes grown for starch production. The results are used to estimate how much nitrogen should be applied during the final supplementary fertilization. |
| Target user | Farmer |
| Target crops | Potatoes |
| Type of tool | Crop analysis |
| The tool assesses or provides guidance on | Leaf nutrient content |
| Nutrients assessed | Nitrogen (N) |
| Type analysis | Leaf analysis |
| Nutrients assessed in the lab | Not included |
| The tool relies on a base recommendation system | No |
| The assessment frequency should be | Prior to N application in late stage or as needed |
| Required data input is | Nutrient input |
| The data can be imported from other tools and systems | No |
| The tools main output format is | Value in tool |
| Data can be exported | No |
Funded by the European Union and UK Research and Innovation (UKRI). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union, European Commission or UKRI. Neither the European Union, European Commission nor UKRI can be held responsible for them.
Project Coordinators
Sarah Kendall
sarah.kendall@adas.co.ukSpyros Fountas
sfountas@aua.grheurope.nutrichecknet@gmail.com
Project Partners
