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Organic Fertilization of Red Raspberry cv. ‘Glen Ample’, in Polyethylene Tunnels in Norway By. - PowerPoint PPT Presentation
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Organic Fertilization of Red Raspberry cv. ‘Glen Ample’, in
Polyethylene Tunnels in Norway
By
Rolf Nestby: Norwegian Institute for Agricultural and Environmental Research, Grasland and Landscape
Division, Kvithamar, 7500 Stjørdal, Norway. Ingrid Myrstad: The Norwegian Agricultural Extension
Service (LFR), 9410 Borkenes, Norway.
Challenges and frames of the project
• Experiments in fields at 62 , 65 and 68 °N• These fields have very different soils.• Challenge to cover nutrient needs with organic fertilizers, especially considering fertigation.
• Project period 2007 to 2010.• Financed by the Norwegian Research Council• Fertilization is one of four objectives of the project.
The field at 65 °N , Brønnøysund, Norway
Mineral soil – pH 7.7 (sandy loam)P-K-Mg-Ca: 12 10 330 9000
The field at 68°N, Harstad, Norway.
Mineral soil with 40% organic matterP-k-Mg-Ca: 44-29 33-12 76- 67 426-369
Management
Fertilizers• Agromarin – Based on
organic material from Marin and Agriculture sources. (6.5- 4-4)
• Marihøne Pluss – Based on bone powder and vinasse (8-3-3).
• OASE for fertigation (8-4-6)
Levels of N• 9, 13,17• Other macro nutrients are
balanced to level of N.• Solid fertilizer are given in
spring and mid summer.• Fertigation from mid
summer to end of harvest.