Over Seeding Cool Season
- Over seeding into an existing sward is a very competitive environment for the new seedlings to establish in.
- The new seedlings need all the help they can get to ensure good establishment.
- Correct nutrition and water availability are critical for best results.
- Apply the optimum amount of nutrients with the correct release pattern to ensure the successful establishment of a grass stand from seed.
- Nutrients should be released gradually (matching seedling tolerance to EC levels) in the very early stages.
- Too much available nutrient (excess EC) at time of sowing will inhibit seed germination and establishment.
- As the seedling establishes and growth begins, nutrient levels can increase, as the plant is able to tolerate higher EC levels.
- Insufficient available nutrients after seed emergence will slow grass growth and canopy closure.
- Good quality homogeneous fertilizer granulation will ensure even distribution of nutrients close to seed.
- Supply low levels of readily available phosphorous as a spray after seed emergence to encourage good rooting and canopy closure.
- Minimise traffic following over-seeding where possible.
- Open up surface with verticutting/scarifying prior to sowing.
- Light frequent irrigation to maintain seedbed moisture.