Reseeding with modern grass varieties can increase grass production by up to 3t/ha. In addition to increased grass growth, new grass increases grass quality and utilization and is more efficient in terms of nitrogen fertilizer use.

This extra, high quality forage ultimately increases farm productivity through higher animal output per hectare compared to old pasture.

The checklist below has some of the DLF team’s top tips for a successful reseed this spring;

1. Get your soil tested

Nutrients are essential for optimal performance of the new sward and a soil test is the only way to know the sward’s exact nutrient requirements. Get soil samples analysed for pH, P and K and adjust your lime and fertiliser application accordingly. Soil testing should be carried out in January or February for most accurate
results.

2. Spraying Off

Spray off the old sward with glyphosate to reduce competition from weeds. Allow 7 – 10 days for the old sward and weeds to absorb the spray before cultivating.

3. Apply Seedbed Fertiliser

The amount of fertiliser required will be dictated by your soil test results. Apply lime to achieve a pH of 6.5 and Index 3 for P and K. Too much nitrogen at this stage will only encourage weed growth. Apply a small amount at sowing and again 4 – 6 weeks after sowing.

4. Fine, Firm Seedbed

Regardless of cultivation method - plough, one-pass or disc – a fine, firm seedbed is critical to successful establishment. Use a slow forward gear when cultivating and, ideally, roll the seedbed before sowing.

5. Soil To Seed Contact

Roll the seedbed again after sowing to ensure soil to seed contact. Soil to seed contact is another critical aspect of reseeding.

6. Weed control

The application of a post-emergence spray is usually required around 6 weeks after sowing to control weeds. In autumn, weed species are less prolific and it should therefore be easier to control weeds in an autumn reseed than a spring reseed.

7. Grazing

Reseeded ground should be grazed regularly and quickly to aid tillering and the development of a dense sward. Sheep or young stock are ideal for this job as they are less likely to damage the developing sward.