The Ultimate in Hybrid Nutrition

Spreader on a farm field

Developed in collaboration between Agrii’s ‘Fortis’ nutrition brand and Yara, YaraSuna Fortis SBo is scientifically formulated to provide essential ingredients for crop nutrition and to promote soil health. This hybrid product combines organic-based and mineral nutrients, offering a unique solution for soil enhancement. Applied annually, it delivers chemical, biological, and physical improvements to the soil, ultimately benefiting your crops. The hybrid nature and high-quality nutritional content of Fortis SBo supports sustainable farming practices, ensuring productivity on the farm for generations to come.

What does it do?

Potatoes in the hands of a farmer

YaraSuna Fortis SBo has been scientifically formulated to provide crops and soil with the essential ingredients to deliver crop nutrition and promote soil health. By applying this product on an annual basis to your fields you will be giving the soil (and ultimately the crop) the best in Chemical, Biological and Physical improvement. 

YaraSuna Piechart
checkbox iconMulti crop use   Checkbox icon Phased nutrient release 
Checkbox iconSafe to handle  Checkbox icon Includes organic nutrition 
Checkbox icon Spreads up to 36m   Checkbox icon Kind to soil
Checkbox icon Easy to store  

YaraSuna Fortis Frequently Asked Questions

A hybrid combination of organic-based and mineral nutrients, including the benefit of recycled organic material.

The product is suitable for any crop which requires nutrition, as the product contains urea as part of the N source it is not suitable for a fully organic farming system.

The product can be used like any standard granular product either broadcast or through drill application. To see benefits in soil health it is recommended to use annually whilst monitoring your soil profile. The product can be applied with standard farm equipment with no need to bring in specialist spreading equipment or contractors. The Fortis SBo comes in 600Kg big bags which can be stored and handled as you would with standard big bag products.

The product can be used in any scenario where you would ordinarily use mineral fertiliser, generally best used as part of a dynamic nutrition plan with a mixture of both mineral and hybrid fertilisers. Seedbed or starter application timings are ideal because the product has both immediately available nutrition, as well as longer-lasting organic nutrients that are released over a period of time.

Fortis SBo is suitable to replace part of your standard nutritional practice, but trials have found it works best as a starter fertiliser or top dressing application.

100%. Production of Fortis SBo undergoes strict quality controls to ensure the pellet is free from contaminants, mould and has minimal dust. As with any organic type material proper personal hygiene should be considered after handling.

Both Yara and Agrii have conducted extensive trials and are now jointly demonstrating this product in field scale trials. Replicated plot work has shown that using hybrid nutrition as part of your crop nutrition plan has similar efficacy to alternative nutrition whilst showing a boost to the microbial activity in soils and addition of organic carbon to the field.

Agrii and Yara bring together two powerful brands in delivering a more sustainable farming future. Using Yara’s expertise and quality in manufacturing of crop nutrition products and Agrii’s expertise in agronomy and farm business support, customers can
expect a high-quality sustainable crop production from Seed to Harvest.

Agrii are our agronomic partner and with expert agronomic advice to hand, if required, will be happy to look after your requirements and business demands.

Discover more about YaraSuna Fortis

In our first podcast of 2025, Ken Rundle is joined by Paul O’Hora, Yara’s Senior Project Manager, and Tom Perrott, Agrii’s Crop Input Specialist. Together, they discuss an exciting new joint initiative to introduce YaraSuna Fortis SBo, an innovative organo-mineral fertiliser, to the UK.

YaraSuna Fortis SBO Packshot

Want to learn more ? 

Speak with your local Agrii contact, email info@agrii.co.uk or call the Customer Services team on 0845 607 3322.

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