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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

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Splitting your 2nd cut fertiliser application

With most 1st cut silage crops harvested at this stage, the focus should turn to fertilising the 2nd cut if you haven’t already done so. The dry and warm weather is hitting grass growth and particularly 2nd cut regrowth. At the time of writing this, there was no sign of impending rain in the forecast, and farmers will be asking themselves should they apply now or wait until some rain is forecasted.

My advice is to split the application and use a nitrate-based fertiliser. Apply half the fertiliser nitrogen now and then wait to apply the remainder just before rain is forecasted. Potential nitrogen losses from spreading a nitrate-based fertiliser are very low in these conditions, but nitrogen losses from urea could easily reach 30% or greater. You might say, why not wait to apply the full application rate before rain is forecasted, but sometimes we receive sudden showers of rain during these dry periods which hasn’t been forecasted.

With 39% of grassland soil samples analysed in the UK falling below the optimum, potash application rates on many farms are resulting in loss of yield on silage fields. With a tonne of grass silage dry matter removing 30 kg of K2O, a 1st cut silage crop could easily be removing 150 kg of K2O per ha. A 2nd cut could be removing 100 – 120 kg K2O per ha. Maintaining and building soil P & K fertility is a worthwhile investment. For this 2nd cut, should you be using a NPKS fertiliser such as YaraMila Sulphur Cut instead of straight N?

Can you identify grassland nutrient deficiencies?

Identify and diagnose if your grassland is suffering from nutrient deficiencies and learn more about the symptoms and causes and how to control or correct the deficiency

Nitrogen deficiency
Nitrogen deficiency

 

 

 

Nitrogen

Phosphorus deficiency
Phosphorus deficiency

 

 

 

Phosphorus

Potassium deficiency
Potassium deficiency

 

 

 

Potassium

Sulphur deficiency
Sulphur deficiency

 

 

 

Sulphur

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.

Grass and forage agronomy and fertiliser advice
Grass and forage agronomy and fertiliser advice

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