Spreading nitrogen and sulphur at the same time means more grass
Applying fertilisers containing nitrogen and sulphur means the grass uses nitrogen more effectively, you get more kgs of dry matter per kg of nitrogen that you apply
Search for grassland and forage crop information
Are you looking for information on grassland and forage crops? Start by choosing your crop.
Molybdenum – a key micronutrient for clover performance
27 Aug 2025
Molybdenum (Mo) is an essential micronutrient particularly for clovers as it plays a key role in N-fixation. Mo is an important micronutrient for nitrogen (N) metabolism in plants. It helps create proteins in plant leaf cells and is required for N fixation in legumes. Mo availability from the soil declines when the pH is below 6. Therefore, adding lime can increase the availability of Mo to plants. It’s important to be aware that high levels of herbage Mo can cause a Mo-copper imbalance in grazing animals.
Clover and other legumes have a high requirement for Mo during establishment and nodulation because it aids nitrogen transformations in the plant affecting both N fixation and assimilation. Often the only sign of Mo deficiency is poor clover growth. The clover may appear N deficient being stunted with pale green or yellow leaves because N fixation has been affected. Routine clover foliage sampling (leaves only) in spring can check that the clover nutrition is adequate.
It is likely that there are parts of the UK where clover performance is being impacted by Mo deficiency. Where white clover is not performing up to expectations, then it might be worthwhile taking a clover foliage sample. In New Zealand, if white clover foliar Mo is <0.1 mg/kg and N is <4.5% then there is a high probability clover will respond to Mo application. Where clover is found to be Mo deficient, we recommend a foliar application of YaraVita Croplift Pro at 5 kg/ha.
Grassland agronomy advice
The latest grassland fertiliser and nutrition advice from the Yara agronomists.
Recent grassland webinars
Advice on managing fertiliser inputs on first cut silage crops this spring
Philip Cosgrave, Yara's Grassland Agronomist is joined by Nicola Ingram and Nigel Mills, Yara Area Managers for UK and Ireland, to discuss a range of topics to help inform farmers on how best to manage fertiliser applications this spring on silage crops.
Yara and CAFRE Nutrients Action Programme (NAP) - Update for fertiliser distributors
In this webinar Philip Cosgrave, Yara Grassland Agronomist and Aveen McMullan, Senior Agricultural Technologist at CAFRE provide an update on the Nutrients Action Programme (NAP) regulations relating to the use and application of inorganic fertilisers and an explanation of the requirement for fertilisation plans.
How to get healthy grass and happy cows
In this webinar, Philip Cosgrave is joined by Conrad Ferris from AFBI to talk about the planning behind a successful spring grassland nutrition strategy.
How to manage lime and fertiliser on a livestock farm
In this webinar, Philip Cosgrave of Yara and Kevin Havekes of Kilwaughter Lime collaborate to give an insight into how lime and fertiliser work hand in hand.
Grass, milk and robots - webinar
Our grassland agronomy expert Philip Cosgrave joins Cormac Garvey from Lely for this webinar to discuss grazing systems for robotic milking, grassland management and grassland nutrition management.
How manage grassland fertilisation in simple steps
In this webinar, Jon Telfer, Philip Cosgrave and Nigel Hester talk through the steps needed for successful grassland fertilisation.
Listen to the latest grassland podcasts
If you are short of time why not check out our bite-size podcasts for the latest thoughts on grassland nutrition.
Looking for even more information ...
If you would like more information and would like to speak to one of our area managers or agronomists please find all their contact details here.
Contact your local Yara area manager or agronomist
Where can I buy Yara fertiliser ...
If you would like to find your nearest Yara supplier or merchant simply use this searchable map with all their contact details here.
