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Copy link Early season recovery #3
Harrogate 2016
Key Conclusions
Despite the cold spring conditions, all fertiliser treatments initiated a turf response; Cold Start, applied once, and Invigorator, applied twice, led to recovery within 9 days. Cold Start promoting significantly more growth than others, whereas the Potassium Nitrate formulation was the least effective.
Summary:
- The fertiliser treatments all initiated a turf response despite the cold spring conditions
- The amount of Nitrogen was equalised with different application rates and frequency (Cold Start was applied once whilst the others were applied twice)
- The Cold Start and Invigorator plots had recovered through the heavy early season top dressing within 9 days
- The Cold Start initiated significantly more growth than the other fertiliser treatments
- The Potassium Nitrate formulation was found to be the least effective of the fertilisers applied
Objective
A trial to determine the level of recovery through early season top dressing using various different spring fertilisers.
Trial Details
Trial station
Harrogate
Product
Greenmaster Pro-Lite
Assessments
Height, quality and growth rate
Treatments
| Treatment No | Product |
|---|---|
| 1 | Control |
| 2 | Greenmaster Pro-Lite Cold Start |
| 3 | Potassium Nitrate 15-0-43 |
| 4 | Greenmaster Pro-Lite Invigorator |
All treatments applied to supply 33 Kg of N during the course of the trial.
Heavy dressing
“Heavy” top dressing (2 kg/m2) was applied to each plot 6 days after fertiliser application.
9 days after Heavy top dressing “Heavy” top dressing disappeared in Cold Start and Invigorator plots but still affecting liquids and untreated.
Treatments
| Treatment No | Product |
|---|---|
| 1 | Control |
| 2 | Greenmaster Pro-Lite Cold Start |
| 3 | Potassium Nitrate 15-0-43 |
| 4 | Greenmaster Pro-Lite Invigorator |
All treatments applied to supply 33 Kg of N during the course of the trial.
Heavy dressing
“Heavy” top dressing (2 kg/m2) was applied to each plot 6 days after fertiliser application.
9 days after Heavy top dressing “Heavy” top dressing disappeared in Cold Start and Invigorator plots but still affecting liquids and untreated.
Results
Grass height
Greenmaster Pro-Lite Cold Start produced a significantly better growth response than the Potassium Nitrate formulation.
Grass height – 15 days after treatment
Turf quality
Greenmaster Pro-Lite Cold Start produced the strongest colour response and lasted for the 8 week duration of the trial
Turf quality
Growth rate
27 days after treatment
Related trials
Early season recovery #1
STRI, Bingley, 2013Early season recovery #2
Leeds, 2015Golf green establishment
NIBIO institute
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