Farmer in a field reviewing the crops Farmer in a field reviewing the crops

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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New grassland research examining the performance of foliar nitrogen

There has been a great deal of interest over the last three years in foliar applied nitrogen (N) on grassland. To learn more about the performance of foliar N on grass, Yara UK began a replicated plot trial in 2023 which will run for three years.

Photo of trial plots

The trial is modelled on a 4-cut silage system, with the first cut taking place in early May, with subsequent cuts taken every 5 weeks approximately.

The total season N rate per ha for the 5 treatments (trt) is as follows: trt 1 - 0 kg, trt 2 - 340 kg (100% soil applied), trt 3 - 203 kg (86% soil applied, 14% as a slow-release foliar N product), trt 4 - 203 kg (100% soil applied), trt 5 - 203 kg (28% soil applied, 72% as a foliar urea product + humic acid). The total N application rate for trt’s 3, 4 and 5 is 40% lower than trt 2.

N response Bar Graph

The foliar N is applied 10 – 12 days after the previous cut to ensure there was enough leaf surface to intercept the foliar products.

2024 results - The total dry matter (DM) yield per ha for each trt was 4,490 kg, 12,371 kg, 10,285 kg, 10,536 kg and 8,985 kg for trt 1, 2, 3, 4 and 5 respectively. The N response for trt 2 and 5 was 23 and 22 kg/DM per kg of applied N, while trt 3 and 4 had a N response of 29 and 30 kg/DM per kg of applied N respectively.

Total DM yield Bar Graph

More information on this research can be found on our website.

Grassland agronomy advice

The latest grassland fertiliser and nutrition advice from the Yara agronomists.

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Research confirms sulphur benefits on grassland
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See all Grassland and Forage Advice

Grassland fertiliser selector

If you are not sure which grassland fertiliser to choose try using this selector to help you in the right direction.

Are you looking for a fertiliser for Grazing or Silage ?
Just nitrogen plus sulphur (NS) or nitrogen, phosphate, potassium and sulphur (NPKS)?
With or without Selenium for animal health?
With or without Phosphorus?
For application in Spring or Summer?

Based on the information you have given the best choice of fertiliser would be YaraBela Axan.

YaraBela AXAN (27% N + 3.6% S) is a uniform compound granular nitrate based nitrogen and sulphur fertiliser with an N:S ratio of 7.5:1 suitable for use on grassland where nitrogen and sulphur are required but no phosphate or potassium, and where no selenium is required.

YaraBela Axan

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Based on the information you have given the best choice of fertiliser would be YaraBela Nutri-Booster.

YaraBela NUTRI BOOSTER (25% N + 2% S, Na and Se) contains nitrogen and sulphur coupled with selenium.suitable for use on grassland where nitrogen and sulphur are required but no phosphate or potassium, together with selenium for increased animal health.

YaraBela Nutri-Booster

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Based on the information you have given the best choice of fertiliser would be YaraMila Super Booster

YaraMila SUPER BOOSTER (25-2.2-4.2 + 2% S and Se) is a compound prilled NPKS fertiliser containing sodium selenate for use on grassland to supplement selenium levels where nitrogen, phosphate, potassium and sulphur are all required together with selenium to improve livestock health.

YaraMila Super Booster

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Based on the information you have given the best choice of fertiliser would be YaraMila Sulphur Cut

YaraMila SULPHUR CUT (22-1.7-11.6 + 3%S) is a compound NPKS grassland fertiliser ideal for replacing the large amount of potash removed after silage whilst kick starting the regeneration of the grass plants with nitrogen together with sulphur and phosphate, when selenium is not needed.

YaraMila SULPHUR CUT

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Based on the information you have given the best choice of fertiliser would be YaraMila Extragrass

YaraMila EXTRAGRASS (27-2.2-4.2 + 2.4% S) is a compound granular NPKS fertiliser ideally suited to little and often application for Spring/Summer application to grassland for index maintenance and high recovery growth rates. With Nitrogen, Phosphate, Potash and Sulphur in every granule this product give the maximum return in investment by supplying the crop with all the nutrients it requires.

YaraMila Extragrass

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Based on the information you have given the best choice of fertiliser would be YaraMila New 18's + S.

YaraMila NEW 18’s + S (18-6-11 + 3%S) is a compound NPKS fertiliser recommended for early Spring grazing application or paddocks with lower P&K indexes. By frontloading grazing ground with high P & K levels this will improve soil fertility and ensure that you maximise grass growth over the entire season. 

YaraMila New 18's + S

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Based on the information you have given the best choice of fertiliser would be YaraMila Zero P Sward.

YaraMila ZERO P SWARD (26-0-5 + 4% S) is an NK plus S fertiliser used where no phosphate is required and where some potash is required in the grazing system.

YaraMila Zero P Sward

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Based on the information you have given the best choice of fertiliser would be YaraMila Zero P Cut.

YaraMila ZERO P CUT (24-0-10 + 2% S) is a compound fertiliser supplying nitrogen potash and sulphur, often used after first cut silage where no phosphate is required.

YaraMila Zero P Cut

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