SweetGrass in every mouthful

What is SweetGrass? 

Sweet-Grass is a high-N grassland fertiliser specifically designed to increase sward palatability and maximise milk and meat production from grass for optimum economic returns.

Why use Sweet-Grass? 

  • Palatability is key to optimum grass utilisation
  • Sweet-Grass improves palatability
  • Improved palatability = increased intake
  • Improved palatability = tighter grazing
  • Increased intake and tighter grazing = optimum grass utilisation
  • Improving palatability is particularly beneficial when grass becomes less digestible or following slurry application which can ‘sour’ pastures



Product recommendations

Sweet Grass

Product range

23% Nitrogen + 5% Sulphur + 5% Sodium


  • Sweet-Grass is particularly suitable where slurry / FYM is being applied and soil P and K levels are medium to high.
  • The recommendations on this page are for guidelines only. Please consult your FACTS Qualified Advisor for a detailed recommendation based on your specific requirements and situation.

Sodium – an essential livestock nutrient

1. Sodium and livestock:

Sodium is an essential nutrient for livestock health and performance. Sodium deficiency can lead to potentially serious clinical disorders and production losses, including:
x Loss of appetite and reduced dry matter intake (DMI)
x Reduced milk yield
x Increased somatic cell count
x Increased risk of hypomagnesaemia (grass staggers)

2. Sodium and grass:

Although grass does not need sodium, its uptake produces significant benefits, including:

  • Higher % of live herbage
  • Higher D values
  • Increased sugar content
  • Better utilisation of swards
  • Improved palatability and digestibility

3. Sodium in fertilisers:

  • Sodium is not firmly held in soils therefore a ‘little and often’ approach to application is ideal
  • Regular applications of 10 – 12 kg/ha of Na2O (8 – 10 units per acre) is recommended
  • Sweet-Grass provides the optimum levels of sodium

Trial data sheets

Sweetgrass NUI sodium and sugar content 2020

Sweet-Grass trial South West 2019 additional (002)_Page_1


Sweet-Grass trial South West 2019 additional (002)_Page_2


Tech talk May 2020 final











Bangor University researched the effects of applying sodium as a grassland fertiliser over many years and the results are summarised in the table below:

Source: Philips et al, Bangor University, 1991

Bangor University table










Sweet-Grass in every mouthful