Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2025
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Sammendrag
Sweet cherry fruit in Norway is sold to the domestic market for fresh consumption. Gradually the self-fertile and high yielding cultivar ‘Lapins’ has become dominant and in the 2024 season, cv. Lapins made up 60% of the total sweet cherry volume. The production of sweet cherry in Norway is located around three main packinghouses with minor to no differences in ripening time dependent on the weather conditions of the year. Situations with too much fruit on the market at the same time have been experienced, and fruit with a longer possible distribution time have been demanded from the packinghouses. In postharvest experiments, deliveries to the same packinghouse the same day exposed to exactly the same treatments were compared and differed in fungal decay from less than 5% to 60% after simulated shelf life. The dominating fungal decay was Mucor rot and grey mold. The risk of fungal decay pre- and postharvest on fruit grown in a humid climate (500 to 1700 mm annual precipitation) increases with high humidity under the plastic cover, with fruit-to-fruit contact in clusters, with incidence of non-developing or damaged fruit, and with minimal effect of the plant protection program. In order to improve the market situation in Norway, postharvest treatments alone are probably not enough. A holistic approach is needed through introduction of new cultivars with high yield potential that ripen over a longer period of time and are thoroughly tested in real scale experiments simulating distribution. A major challenge will be how to motivate growers to plant cultivars with potentially less income than possible with the self-fertile, high yielding cv. ‘Lapins’.
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Forfattere
Christophe Moni Eva Farkas Claire Coutris Hanna Marika Silvennoinen Anders Aas Marit Almvik Liang Wang Kathinka Lang Xingang Liu Marianne StenrødSammendrag
Biochar and pesticides are likely to be increasingly used in combination in agricultural soils, yet their combined effects on climate change mitigation remain unexplored. This study presents an 8-month incubation experiment with different soil types (silt loam and sandy loam), biochars (corncob and corn stem), and pesticides (with and without a pesticide mixture), during which CO2 production from soil organic matter (SOM) and biochar mineralisation was monitored using isotopic methods. A comprehensive modelling approach, describing all mineralisation results over the entire incubation with a reduced set of parameters, was employed to isolate the effects of biochar, pesticides, and their interactions across soil types and carbon pools, and captured the dynamic effect of biochar on SOM mineralisation. Over 99.5% of biochars remained inert after 8 months, confirming the role of biochar as a carbon sequestration technology. Biochar addition showed higher SOM stabilisation potential in soil with high clay content compared to soil with low clay content. This suggests that biochar amendment should be considered carefully in clay-depleted soils, as it could result in a loss of native SOM. Corn stem biochar, characterised by high surface area and low C/N ratio, demonstrated higher SOM stabilisation potential than corncob biochar with low surface area and high C/N ratio. Pesticide application reduced SOM mineralisation by 10% regardless of soil and biochar types. Finally, the interaction between corncob biochar and pesticides further reduced SOM mineralisation by 5%, while no interactive effect was observed with corn stem biochar. These findings highlight the importance of considering biochar-pesticide interactions when evaluating the impact of biochar amendments on native SOM stability.