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
Sammendrag
Det er ikke registrert sammendrag
Forfattere
C. Chiodi G. Zardinoni P. Stevanato L. Giagnoni P. Carletti N. Oustrière Arne Sæbø Tomas Persson W. Szulc B. Rutkowska M. Mench G. RenellaSammendrag
Background Soil contamination with metal(loid)s and organic pollutants creates environmental and health concerns, driving the need for sustainable remediation strategies. Organic amendments can mitigate contamination effects, enhancing soil quality, and potentially increasing biomass production; however, their long-term influence remains an open question. In a five-year field experiment at a former wood-preservation site, this study evaluates the effects of five organic amendments—fresh pig manure (PM), biodigested pig manure (PD), compost (C), compost pellets (Pt), and green waste compost (G)—on Cu-contaminated soils. Here, we evaluated their impacts on physico-chemical soil properties, metal bioavailability, microbial community structure, plant growth and soil fertility. Results All amendments led to an overall soil improvement, including enhanced physico-chemical properties, increased enzyme activities. The amendments promoted the concentration of soil 16S bacterial genes and improved the yield of winter barley cultivated in the plots. The most abundant phyla detected across soil samples were Actinobacteriota , Proteobacteria , and Firmicutes , with Bacillus , Streptomyces , and Bradyrhizobium among the dominant genera. Compost-based amendments at 5% w/w addition rate (C5 and Pt5) showed the most promising results, significantly increasing soil carbon, nitrogen, and phosphorus contents, while reducing bioavailability of Cd, Ni, Pb, and Zn compared with untreated control plots ( p < 0.01). A decrease in Cu availability was observed but it was not significant. The Pt5 soils exhibited the highest 16S rRNA gene copy number ( p < 0.01). Both compost and compost pellets amendments enriched microbial communities associated with soil quality and plant yield, leading to significant improvements in soil fertility and barley yield (+ 200% on average). Conclusion This integrative approach identified organic amendments, notably compost and pelleted compost, that effectively contribute to soil remediation from multiple perspectives: chemical properties (pH, organic content, nutrients), reduction of bioavailable soil Cd and Zn, enzyme activities, microbial abundance and diversity (16S rRNA), and winter barley yield. The study evidenced signature biomarkers characteristic of healthy soils ( Paenibacillus , Lysinibacillus , and Agromyces ) and polluted soils ( Candidatus Solibacter and Mycobacterium ). Our findings support the use of compost (raw and pelleted) as a balanced approach for phyto-managing metal-contaminated soils, reducing 1 M NH 4 NO 3 -extractable soil Cd and Zn while enhancing microbial activity and soil fertility. Graphical Abstract
Forfattere
Shimelis Gizachew Raji Bimrew Asmare Yohannes Ewunetu Tesema Dangura Marit Jørgensen Yonas BerhanuSammendrag
Context Tropical forages can improve livestock productivity while reducing methane emissions in smallholder crop–livestock systems. Aims This study evaluated forage mass, forage quality, methane mitigation potential of 12 tropical species at two contrasting sites in the Ethiopian highlands: Hawassa in the south and Bahir Dar in the north. Methods Field experiments were conducted from 2021 to 2023, with two to four cuts per year by using a randomized complete block design. Plant samples were also evaluated for chemical composition and in vitro methane production. Key results Results showed significant site-specific variations, with desho grass (Pennisetum pedicellatum) demonstrating consistently high forage mass production (27.3 Mg ha−1 at Hawassa; 17.58 Mg ha−1 at Bahir Dar) across these environments. Legumes, particularly sunnhemp (Crotalaria juncea L.) and lablab (Lablab purpureus L.), exhibited the highest crude protein yield (590–1300 kg ha−1 year−1) but lower forage production, highlighting their role as supplemental feed sources. Methane mitigation potential also exhibited variations, with lablab, Mombasa (Megathyrsus maximus) and desho producing the lowest emissions (<16%), whereas high-emission species such as Greenleaf desmodium (Desmodium intortum) (>27%) warrant further evaluation. Conclusions The study identified desho and Mombasa as promising options for site-specific forage development because of their dual benefits of productivity and in vitro methane mitigation. Legumes such as sunnhemp and lablab are recommended as high-quality supplements to existing feeding strategies. Implications These findings have provided actionable insights for extension officers, policy makers and researchers seeking to balance livestock productivity with environmental sustainability in Ethiopian highlands. Future research should focus on validating methane mitigation potential under in vivo conditions and addressing challenges in legume establishment.
Forfattere
Haldis KismulSammendrag
Det er ikke registrert sammendrag
Sammendrag
Video om fôring av melkekyr med graspulp
Forfattere
Steffen AdlerSammendrag
Det er ikke registrert sammendrag
Forfattere
Steffen AdlerSammendrag
Det er ikke registrert sammendrag
Forfattere
Steffen AdlerSammendrag
Det er ikke registrert sammendrag
Forfattere
Steffen AdlerSammendrag
Innlegg på Fjørfedagene 2025
Forfattere
Steffen AdlerSammendrag
Foredrag, Fremtidsfredag 2025, Steinkjer