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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Mid-season P & K review for grazed swards
In early July it’s worthwhile checking what nutrients have been applied to grazing paddocks to-date, particularly how much P & K. Although silage fields have the larger P & K removal rates, slipping soil fertility on grazed swards is very common and will reduce nitrogen response from all sources of nitrogen – soil, fertiliser and manures.
The P & K maintenance rates (based on the target soil index of 2 for P and 2 for K) for grazing is 20 kg/ha for phosphate and 20 kg/ha for potash. These rates will need to be higher on intensively stocked grazing platforms as offtakes are greater – 1,000 L of milk removes 2.3 kg of P.
Potash fertility is declining on grassland farms in general, and grazed paddocks are no exception. Even though 90% of potash consumed by livestock is excreted, the 10% (1,000 L of milk removes 1.4 kg of K) utilised by livestock does add up over the course of the season. Potash is also leached from soils, albeit in small amounts.
A common practice with rotational grazing is taking out a paddock for silage to manage grass supply on the grazing platform. Where this happens, the P & K offtakes in this silage need to be added to the annual P & K maintenance rates. Each 800 kg bale (25% DM) of silage will remove 1.5 kg/P and 6.6 kg/K. YaraMila ExtraGrass and YaraMila SulphurCut are ideal products to balance P & K offtakes and maintain soil fertility on grazing paddocks.
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.
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