Cultivation Archives

Lífkol úr landeldi sem jarðvegsbætir í ræktun

Published:

30/10/2025

Authors:

Jónas Baldursson, Katrín Hulda Gunnarsdóttir og Ásdís Agla Sigurðardóttir

Supported by:

Icelandic Food Innovation Fund (is. Matvælasjóður)

Contact

Jónas Baldursson

Project Manager

jonasb@matis.is

Erfitt hefur reynst að nýta fiskeldismykju en hugmyndir hafa verið uppi um að framleiða lífkol úr henni. Lífkol eru jarðvegsbætandi efni sem hafa margvíslega eiginleika, t.d. að binda kolefni og bæta jarðvegsskilyrði. Markmið rannsóknarinnar var að bera saman áhrif lífkola framleidd úr fiskeldismykju frá ferskvatnseldi annars vegar og saltvatnseldi hins vegar við áhrif hefðbundinna lífkola framleidd úr við og trjáafgöngum. Áhrif lífkola í mismunandi hlutföllum á vöxt kálplantna voru könnuð. Niðurstöður sýndu að lífkol framleidd úr ferskvatns fiskeldismykju höfðu jákvæð áhrif á vöxt kálplantna, sambærileg áhrifum lífkola úr trjáafgöngum, en lífkol framleidd úr saltvatnsfiskeldismykju höfðu neikvæð áhrif á vöxt kálplanta og ullu mestum afföllum.
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Aquaculture sludge has proven to be difficult to utilise, however, there have been ideas of producing biochar from it. Biochar is a soil-improving material that has a variety of properties, such as sequestering carbon and improving soil conditions. The aim of the study was to evaluate the effects of biochar produced from freshwater sludge and saltwater sludge, with biochar produced from wood and tree residues. The effects of biochar were investigated in different concentrations on the growth of lettuce plants. Results showed that biochar made from freshwater sludge had a positive effect on the growth of lettuce and was comparable to biochar from tree residues, while biochar produced from saltwater sludge had a negative effect on the growth, causing the most losses.

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Northern Cereals - New Opportunities

Post author By admin
Post date 27/05/2016

Published:

27/05/2016

Authors:

Ólafur Reykdal, Sæmundur Sveinsson, Sigríður Dalmannsdóttir, Peter Martin, Jens Ivan í Gerðin, Vanessa Kavanagh, Aqqalooraq Frederiksen, Jónatan Hermannsson

Supported by:

NORA, the Nordic Atlantic Cooperation. NORA project number 515-005

Contact

Ólafur Reykdal

Project Manager

olafur.reykdal@matis.is

Northern Cereals - New Opportunities

A project on grain farming in the Arctic was carried out between 2013 and 2015. The project was funded by the Nordic-Atlantic Co-operation (NORA). Participants came from Iceland, Northern Norway, the Faroe Islands, Greenland, Orkney and Newfoundland. The purpose of the project was to support grain farming in sparsely populated Nordic areas by testing different barley crops and providing guidelines for farmers and food companies. The most promising barley crops (Kría, Tiril, Saana, Bere, NL) were tested with all participants and measurements were made on yield and quality. The amount of barley harvest varied between regions and years. The average starch content of dried grain was 58%, which is sufficient for the baking industry. Fungal toxins (Mycotoxin) were not detected in the samples sent for analysis. It was concluded that early grain sowing was the most important factor in promoting a good grain harvest in the NORA area. Unit is important to cut the grain early to prevent losses due to storms and birds.

A project on the cultivation of cereals in the North Atlantic Region was carried out in the period 2013 to 2015. The project was supported by the Nordic Atlantic Cooperation (NORA). Partners came from Iceland, NNorway, Faroe Islands, Greenland, Orkney and Newfoundland. The purpose of the project was to support cereal cultivation in rural northern regions by testing barley varieties and providing guidelines for farmers and industry. The most promising barley varieties (Kria, Tiril, Saana, Bere and NL) were tested in all partner regions for growth and quality characteristics. Grain yields were very variable across the region and differed between years. Average starch content of grain was about 58% which is sufficient for the baking industry. Mycotoxins, toxins formed by certain species of mold, were not detected in selected samples. Early sowing was concluded to be the most important factor for a successful cereal production in the North Atlantic region. Early harvest is recommended in order to secure the harvest before it becomes vulnerable to wind and bird damages, even though the grain will be slightly less mature.