Sökning: "Röbäcksdalen."

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet Röbäcksdalen..

  1. 1. Etableringsmomentets inverkan på växtsamhällets artdiversitet - Har uppvärmning någon effekt?

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Elin Juhlin Eriksson; [2023]
    Nyckelord :Community assembly; Priority effects; Plant diversity; Species composition; Warming; Röbäcksdalen.;

    Sammanfattning : The aim of this study was to assess how the plant community and its species diversity are affected by establishment methods and warming. Priority effects, i.e. LÄS MER

  3. 2. Multi-environment Screening of Timothy (Phleum pratense) Breeding Material for Better Forage Yield in Sweden.

    Master-uppsats, SLU/Dept. of Plant Breeding (from 130101)

    Författare :Ibrahim Issa; [2022]
    Nyckelord :Phleum pratense; Multi-Environment; Forage yield; Sweden; Genotype-by-environment interaction Swedish;

    Sammanfattning : Timothy (Phleum pratense) is one of the most widely used forage crops in hay and pasture grass mixtures in Nordic countries; it’s also used in areas where it is one of the top forage crops harvested high yield, especially in boreal climates. There hasn’t been any large-scale breeding of Timothy to develop varieties that are adapted for Swedish climate and standards, which is surprising given that Timothy is the main forage crop used in Sweden. LÄS MER

  4. 3. Using Sentinel-2 Satellite Images to Estimate Traits of Forage Grasslands

    Master-uppsats, SLU/Dept. of Agricultural Research for Northern Sweden

    Författare :Niklas Zeiner; [2021]
    Nyckelord :Remote sensing; Forage grasslands; Sentinel-2; Dry matter yield; Canopy average height; Total leaf chlorophyll content; Partial least squares; Support vector machines;

    Sammanfattning : In this project, regression models based on data from field measurements and spectral information extracted from satellite imagery were used to estimate traits of forage grasslands; dry matter yield, canopy average height and total leaf chlorophyll. Four fields at SLUs Röbäcksdalen field station were sampled on 22 occasions and a total of 198 samples, including measurement of the highest plant, canopy height, leaf chlorophyll content, canopy spectral reflectance and biomass were collected. LÄS MER

  5. 4. Evaluation of passive transfer, apparent efficiency of absorption and health in dairy calves

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Andrea Larsson; [2018]
    Nyckelord :Calf; passive transfer; ELISA;

    Sammanfattning : Calves are born without preformed antibodies and are dependent on colostrum to acquire passive transfer of immunity from their mother. Failure of passive transfer (FPT) is a contributing factor to increased calf mortality and morbidity, and hence of economic importance to the producer. LÄS MER

  7. 5. Kalkningens effekter på fosformineralisering : organisk fosfor i det permanenta fältförsöket i Röbäcksdalen (R3-1002)

    Kandidat-uppsats, SLU/Dept. of Soil and Environment

    Författare :Christian Sigtryggsson; [2015]
    Nyckelord :organisk fosfor; kalkning; pH; mineralisering; fosfatas;

    Sammanfattning : The use of phosphorus within today´s intensive farming, represents a future chal-lenge that grows as the world's stores of easily accessible phosphate minerals are being depleted. At the same time, large amounts of organic matter is annually re-turned to the world´s arable land, organic matter whose mineralization contributes to the plant nutrition supply of the subsequent crop. LÄS MER