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.
2011
Sammendrag
Denne artikkelen refererer til forsøk med nye kjemiske middel mot soppsjukdomar i bringebær og jordbær. Dei nye produkta Luna Privilege og Luna Sensation har god verknad mot gråskimmel i begge bærartane og skotsjuke i bringebær.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Tatsiana EspevigSammendrag
Mycket thatch ger mindre hälsosamma gräsmattor. Mängden thatch är ett resultat av två paralella processer bildande av växtmassa och nedbrytning av dött organiskt material. Plantans växt stimuleras av gödning och bevattning. Svampar, som är effektivast på att bryta ner dött växtmaterial,stimuleras av god tillgång på syre och ganska hög temperatur. åtgärder som stimulerar mikrolivet är viktiga - dressning med sand är den mest effektiva åtgärden för dettamen regelbunden luftning är också viktig. Om vi inte lyckas skapa balans mellan bildande och nedbrytning av thatch måste den tas bort genom vertikalskärning eller motsvarande åtgärd. Särskild uppmärksamhet bör riktas mot spelytor med lite slitage liksom ytor som anlagts med färdigt gräs på rulle.
Forfattere
Eivind Uleberg Theodorus MeuwissenSammendrag
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Sammendrag
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Sammendrag
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Sammendrag
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Forfattere
Tore Filbakk Raida Jirjis Juha Nurmi Olav Albert HøibøSammendrag
Increased use of pellets has resulted in a shortage of the traditional raw materials required for pellet making, including saw dust, shavings and cuttings from saw mills. Therefore, the pellets industry has started to look for alternative raw materials. Limited consumption of pulpwood from Scots pine (Pinus sylvestris L.) in Norway has made it a potential raw material for the pellets industry. A study on how bark content affects the quality of pellets is reported in this paper. Pellets from pinewood containing zero, five, 10, 30 and 100 percent bark were produced, and their quality parameters were evaluated. Combustion tests were also performed on the produced pellets. Pellets made from pure bark had the best mechanical properties compared with pellets made of wood containing various concentrations of bark. The differences were not substantial and the durability for all chosen assortments was in the same quality class in the CEN standard. A positive effect off the amount of steam added was found. The bulk densities of the blend pellets were higher than those of pure wood and bark. The ash content increased with the amount of bark in the pellets. There were no problems with sintering when the bark content was low (five and 10 percent). For pure bark pellets some sintering was registered.
Sammendrag
In a series of tritrophic-level interaction experiments, the effect of selected host plants of the spider mites, Tetranychus evansi and Tetranychus urticae, on Neozygites floridana was studied by evaluating the attachment of capilliconidia, presence of hyphal bodies in the infected mites, mortality from fungal infection, mummification and sporulation from fungus-killed mite cadavers. Host plants tested for T. evansi were tomato, cherry tomato, eggplant, nightshade, and pepper while host plants tested for T. urticae were strawberry, jack bean, cotton and Gerbera. Oviposition rate of the mites on each plant was determined to infer host plant suitability while host-switching determined antibiosis effect on fungal activity. T. evansi had a high oviposition on eggplant, tomato and nightshade but not on cherry tomato and pepper. T. urticae on jack bean resulted in a higher oviposition than on strawberry, cotton and Gerbera. Attachment of capilliconidia to the T. evansi body, presence of hyphal bodies in infected T. evansi and mortality from fungal infection were significantly higher on pepper, nightshade and tomato. The highest level of T. evansi mummification was observed on tomato. T. evansi cadavers from tomato and eggplant produced more primary conidia than those from cherry tomato, nightshade and pepper. Switching N. floridana infected T. evansi from one of five Solanaceous host plants to tomato had no prominent effect on N. floridana performance. For T. urticae, strawberry and jack bean provided the best N. floridana performance when considering all measured parameters. Strawberry also had the highest primary conidia production. This study shows that performance of N. floridana can vary with host plants and may be an important factor for the development of N. floridana epizootics.
Sammendrag
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