Cefnllan Project Introduction - Comparing various reseeding methods
Site: Cefnllan, Llangammarch Wells, Powys, LD4 4AA
Technical Officer: Elan Davies
Project Title: Comparing various reseeding methods
Introduction to project:
A common question asked by many farmers who decide to reseed is:
“What is the best method of reseeding to establish a good grass-clover sward?” Farmers have a wide range of establishment methods to choose from, whether they are plough-based or minimum cultivation.
Some farmers plough when reseeding, as it provides an opportunity to level fields, particularly after land reclamation work. Ploughing can also help to improve land drainage. A fine firm seedbed is essential in establishing a good grass-clover reseed. Ploughing will help achieve this, together with burying older grasses and weeds. It reduces the risk of a reseed failing to establish due to a high level of soil to seed contact in a fine seedbed and more available moisture. In addition, ploughing aids the release of natural nitrogen from the soil organic matter.
In circumstances where ploughing is not suitable, minimum cultivation methods have a role to play. Minimum cultivation is an ideal method to use where ground contains a lot of stone or where there is rock near the surface. As there is minimum ground disturbance, it’s possible to graze within 60 days in ideal conditions. Minimum cultivation is generally cheaper than ploughing and the most fertile soil remains at the surface where nutrients are needed. However, in organic systems where herbicides are not permitted, special care must be taken to ensure that weeds are controlled effectively through grazing management.
Over recent years, Cefnllan has embarked on an extensive reseeding programme, where 20 hectares is reseeded annually. These new leys are very productive in the spring when the business needs to make the most of its grass. Identifying the best and most cost-effective method of reseeding would benefit the farm greatly.
Project Objectives:
- Compare various methods of reseeding, with the aim of identifying the best method suited to Cefnllan, along with the most cost effective.
Key Performance Indicators set:
- Improve establishment success
- Reduce weed numbers
- Improve yield and quality measurements in first full year using exclusion cages
Timeline and Milestones:
