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Copy link Norway Spruce and Agroblen®
38
Swedish University of Agricultural Sciences, Asa Research Station
38
Key Conclusions
Over the 2½ year trial, Norway Spruce trees fertilised with Agroblen® outperformed those receiving the grower practice. The trees were 38% taller and grew faster, helping them out-compete weeds and reducing animal damage. In addition, the root collar growth was higher, with the overall diameter up by 43%.
Objective
To evaluate the performance of Agroblen®, as fully coated NPK, on establishment of Norway Spruce (Picea abies) over the 2½ years following planting.
Trial Details
Trial station
Swedish University of Agricultural Sciences, Asa Research Station
Crop
Forestry
Product
Agroblen®
Assessments
Plant height, and root collar diameter
Treatments
This trial, comparing Agroblen® application with the standard grower practice, was set up in a randomised block design with 3 repetitions. Agroblen® 9-20-8+3MgO+0.1B | 8-9M was applied in the planting holes at the time of planting.
| Treatment | Product | Dosage | Timing of application |
|---|---|---|---|
| Grower Practice | |||
| Agroblen® | Agroblen® 9-20-8+3MgO+0.1B | 30 grams/plant | At planting, in planting holes |
Treatments
This trial, comparing Agroblen® application with the standard grower practice, was set up in a randomised block design with 3 repetitions. Agroblen® 9-20-8+3MgO+0.1B | 8-9M was applied in the planting holes at the time of planting.
| Treatment | Product | Dosage | Timing of application |
|---|---|---|---|
| Grower Practice | |||
| Agroblen® | Agroblen® 9-20-8+3MgO+0.1B | 30 grams/plant | At planting, in planting holes |
Results
- Increases plant height: Agroblen® increased plant height by 24 cm (38%) compared to Grower Practice. The extra growth helped increase survival rate of the plants, avoiding severe damage caused by animals (moose and deer) or weeds.
- Increases root collar diameter: After the first growing season, seedlings fertilised with Agroblen® had significantly larger root collar diameter compared to Grower Practice. This trend was observed in both the second and third growing seasons, increasing the overall root collar diameter by 43%.
- Stimulates root collar growth: Plants fertilised with Agroblen® reached a 10mm root collar diameter up to 1 year faster than Grower Practice. Such an increase could potentially avoid one extra treatment against pine weevil.
Agroblen® increased Norway Spruce height by 38% compared to the growers practice.
Agroblen® increased Norway Spruce root collar diameter by 43% compared to the growers practice.
Agroblen® increased Norway Spruce tree height by 38% compared to the Grower Practice.
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