What is YaraPlus GrassN and how can it support me?

The free YaraPlus GrassN solution, developed by Yara, helps you optimise grassland fertilisation and harvesting decisions. It supports you in planning when and how much fertiliser to apply and when to harvest, while taking weather conditions, crude protein content and dry matter yield development into account.

By combining your field information with local weather and soil data, YaraPlus GrassN helps you make informed decisions to improve forage quality, optimise nitrogen use and support efficient livestock management.

Why use YaraPlus GrassN?

Applying nitrogen at the right time and in the right amount is crucial for productive grassland management. Applying nitrogen too early can increase the risk of nitrogen losses and reduce crude protein utilisation. Applying it too late may limit yield. Both over- and under-application can lead to suboptimal protein levels in the forage.

To optimise fertilisation and harvesting decisions, it's essential to know:

• When fertiliser should be applied and in what quantity
• How weather conditions influence grass growth
• How crude protein and dry matter develop over time
• When the next cut should be made to balance yield and quality
• How to supply sufficient nitrogen while staying within legal limits

YaraPlus GrassN brings these factors together, enabling you to answer these questions and manage your grassland more efficiently.

What does YaraPlus GrassN offer?

YaraPlus GrassN uses your field location, weather and soil data, as well as your own inputs such as target dry matter yield, planned applications and completed activities, to calculate the optimal timing and amount of nitrogen application while complying with local legal limits.

You can also monitor the development of crude protein content and dry matter yield, helping you identify the best time to harvest based on your production goals.

With YaraPlus GrassN, you benefit from:

• An overview of grassland fertilisation across all fields
• Field-level insights for each cut
• Recommendations for the first fertilisation timing and amount
• Optimised use of your available nitrogen range
• Insights into nitrogen use efficiency
• Forecasts for crude protein content and dry matter yield development
• Support in identifying the optimal harvest time based on your objectives
• The option to create custom fertilisers to reflect the products you use

YaraPlus GrassN is built on more than 40 years of research and extensive field trial data. This knowledge base enables reliable, field-level predictions and supports accurate fertilisation and harvesting decisions.

How does YaraPlus GrassN work?

To get started, add your farm and fields in YaraPlus, then define soil attributes and legal limits for each field. This information improves the accuracy of recommendations and forecasts.

For each field, YaraPlus GrassN provides a detailed overview, including current weather conditions and temperature development, to help you plan field activities.

Based on your inputs, YaraPlus GrassN provides recommendations for the first fertiliser application and forecasts the expected harvest date. These forecasts include expected dry matter yield, crude protein content and nitrogen use efficiency.

The recommendations and forecasts for each cut are based on:

• Recent local weather data and a short-term weather forecast
• Soil type and soil fertility, using regional defaults or your own data
• Local legal limits defined by you
• Your defined dry matter target yield
• Planned and applied organic manure
• Planned and applied mineral fertiliser
• Completed harvests

Growth and nutrient graphs show the forecasted development of dry matter yield and crude protein content over the coming weeks, as well as the available nitrogen and phosphate based on previous applications.

For each cut, you can adjust the type and amount of planned organic manure and mineral fertiliser. YaraPlus GrassN recalculates recommendations and forecasts automatically. Once fertiliser has been applied, you can add it as an activity to keep forecasts up to date. After harvesting, you can complete the cut and move on to the next one.

Interested in GrassN?

Create a free YaraPlus account