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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Spring reseeding can give more reliable results to Autumn reseeding and allows farmers to grow increased yields of higher quality grass.
Step 1: Identify poorly performing paddocks. Step 2: assess their content of desirable grasses. If this is less than 60% consider re-seeding. Annual meadow grass and other weed grasses produce lower yields, poorer feed quality and do not respond well to applied nutrients. Yield will be reduced by 1 % for every 1 % in weed ground cover.
Before you start, be sure to complete Step 3: take a soil test and act on the results. On mineral soils the optimum pH for grass is 6.3. Failing to correct pH will severely impact the success of your reseed. Choose only varieties from the Recommended Grass and Clover Lists (RGCL) and pick those that suit your particular farm.
Step 4: Provide new swards with the correct nutrients at sowing. Failure to do so will hinder the success of the ley. Where clover isn’t included, and the soil P & K index is 2, then use 330 kg/ha YaraMila ACTYVA S (16-15-15 + 6.5% SO3) at establishment. New leys have a greater requirement for phosphate to help with root development. Good seed soil contact is essential, so roll after drilling.
Weeks 4-6 apply herbicide to prevent weeds competing for nutrients and space. Combine this with a light grazing when grass height is at 8 – 10 cm to promote new shoots, and the long-term productivity of your new sward.
For more information visit www.yara.co.uk/crop-nutrition/agronomy-advice/reseeding-advice/
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