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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.

2024

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Oppsummert: Hvis vinterfôring av reinsdyr er nødvendig, er det beste for å opprettholde reinsdyrenes naturlige beiteatferd og en bærekraftig reindrift å fôre reinsdyrene fritt på utmarksbeitene. Dette gjør det også lettere å unngå spredning av sykdommer mellom reinsdyrene. Men i forhold til vegetasjonsdekket og miljøet er det bedre å fôre reins-dyrene i innhegninger. Det er vanskelig å oppfylle begge disse ønskene, og reindriftsutøveren må ofte gjøre en avveining mellom de to.Rangifer Report, 20, 2024: 1-32 DOI DOI 10.7557/2.44.4.7611

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The effectiveness of mechanical subsoiling for alleviating subsoil compaction is controversially discussed, particularly due to the sensitivity of mechanically loosened soils towards re-compaction. In order to improve the alleviation potential by subsoiling it was hypothesized that the loss of soil stability by mechanical subsoiling of compacted soils can be reduced by top and subsoil liming. The primary objective was to evaluate whether (a) mechanical subsoiling (to a depth of 35 cm with a subsoiler or a plough with a pan-breaker) could alleviate compaction in a clayey Stagnosol and (b) whether liming could stabilize soil structure to minimize re-compaction. Undisturbed soil samples were collected to assess physical properties in both "compacted", "subsoiled", and "limed", as well as in untreated plots. The Compaction Verification Tool (CVT) identified potentially harmful soil compaction in the subsoil. The results showed that wheeling increased the extent of harmful subsoil compaction (from 8% to 33%) in the first year, which was accompanied with a reduction in crop yields. Subsoiling with a pan-breaker combined with high liming intensity improved soil physical properties and yields and may have mitigated re-compaction in the loosened subsoil. Nevertheless, it is expected to be not economically viable on the studied clay soil.

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Key message We provide data on seedlot germination potential—a key trait related to regeneration—of 12 oak spe‑ cies. Germination was tested at the University of Granada following international protocols with 8985 acorns from 93 batches and 16 countries across Europe. Data on germination probability, acorn origin, mass, and moisture content measured on another 4544 acorns are available at https://doi.org/10.30827/Digibug.87318. Associated metadata are available at https://metadata-​afs.nancy.inra.fr/geonetwork/srv/fre/catalog.search#/metadata/a742c6d8-​bc37-​4ca2-​ 8b81-​2447c5a8858d. Keywords Acorn, Germination test, Seedlot germination potential, Seed mass, Seed moisture, Seed viability

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The Expert Group for Technical Advice on Organic Production (EGTOP) was requested to advise on the replacement of the wording ‘factory farming’ in Regulation (EU) 2021/11652, Annex II. The opinion of the Group is that the wording ‘factory farming’ is not appropriate to express which animal-derived fertilisers are allowed, restricted, or forbidden to be used in organic farming, as currently defined in Annex II of the Regulation (EU) 2021/1165. Therefore, following an in-depth analysis of possible criteria suitable for defining a method to differentiate animal-derived fertilisers for which use are currently acceptable in organic farming, two major criteria were selected to this purpose: origin of the fertiliser and the occurrence of processing. Depending on the application of these two criteria, the amount of total nitrogen applicable per year and per hectare from conventional animal-derived fertilisers is restricted or not allowed. This restriction is meant to reduce the risk of introducing pollutants into the soil of organic farms. These criteria and their implementation were considered to fulfil the pragmatic approach taken by the Group for not substantially increasing the burden to organic farmers, allowing verification by certifying bodies, and, at the same time, fostering the adoption of other practices of soil fertilization and supporting the reputation of the organic farming sector. A multicriteria approach can be implemented to regulate the use of animal-derived fertilisers in organic farms, to replace the wording ‘factory farming origin forbidden’. Moreover, even though animal by-products are out of the scope of the point 1.9.4 in Annex II of Regulation (EU) 2018/848, the need of a consistent approach to the use of animal-derived fertilising products and considering that these kinds of products are used as a source of nitrogen, the Group recommends including them in the same quantitative approach and resulting restrictions proposed for farmyard manure and its derivatives.