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Meer ganzen in de wei betekent niet altijd minder opbrengst
Hoe beïnvloedt het aantal ganzen van verschillende soorten de landbouwschade? Een internationaal team geleid door het Nederlands Instituut voor Ecologie (NIOO-KNAW) onderzoekt dit nader in Friesland. -
Microbial Networks controlling soil greenhouse gases emissions
Soils are considered principally non-renewable resources. Soil ecosystem services have a large impact on numerous societal demands and are of high economic importance. Within the area of sustainable agriculture, it is expected that agricultural production will increasingly rely on the natural nutrient retention and recycling capabilities of soil. This project seeks to provide a fundamental scientific understanding of soil functioning and the resulting ecosystem services in Brazilian and Dutch bio-economies based on innovative microbial ecology and soil science studies. Focus is in sugarcane crop production systems by linking soil microbial composition and functioning, waste residues recycling, fertilizers, soil factors and greenhouse gases (GHG) emissions through integrating and complementing the strong expertise of Brazilian and Dutch researchers from different areas of agronomy, soil sciences, plant nutrition, biogeochemistry, soil ecology, microbial ecology, ecological genomics, molecular ecology and bioinformatics. We will quantify the microbial functional groups and microbial abundance of C and N cycle genes and measure GHG emissions (CO2, CH4 and N2O) from soils during the productive cycle of the plant under different management practices and verify the temporal and spatial variability of these emissions in the evaluated treatments with different concentrations of sugarcane vinasse residue combined with N mineral fertilizers in combination with straw additions, and determine the conditions under which such GHG emissions can be counteracted, or minimized most. The proposed project will enhance fundamental scientific understanding of the interactive role of the microbial networks operating in soil and the consequences of bio-based agricultural management practices for the functioning of soil systems. -
Microbial Farming to increase plant productivity
Plant-growth promoting microbes (PGPM) are a viable alternative to traditional fertilizers for enhancing plant productivity and improving soil quality without environmental pollution. The use of PGPM in agriculture has been hampered by a lack of reproducible results and the difficulty of transferring this technology to the field. This inconsistent success primarily reflects competition or resistance of the original soil microbiome to inoculants, as well as the negative effects of management practices such as fertilization on plant interactions with the soil microbiome and the efficiency of ecosystem services delivered by PGPM. We were the first to circumvent this problem under field conditions by manipulating the soil microbiome to successfully obtain consistent, positive effects of inoculated microbes on plant productivity (Cipriano et al., 2016;https://doi.org/10.1093/femsec/fiw197). However, the influence of the indigenous soil microbiome on plants remains largely unknown. We propose to investigate this tripartite, PGPM-plant-soil microbiome interaction in plant quality and productivity using state-of-the-art ‘omics’ and bioinformatics approaches to investigate facilitation (positive interactions) and competition (negative interactions) by both microbes and PGPM within the plant realized niche following gradients of both soil diversity and nutrient availability. This research will facilitate the development of innovative methods for agricultural and horticultural starting material production using PGPM for sustainable crop production by combining techniques to reduce nutrient input and enhance the efficiency and long-lasting effects of PGPM. This research proposal will integrate approaches to obtain a fundamental understanding of these tripartite interactions in a smart microbiome engineered plant production system for sustainable high-quality crop production. -
Arctic migratory birds project wins Netherlands Polar Programme funding
28/08/2020 The Dutch Research Council (NWO) has awarded funding to Bart Nolet's project 'Arctic migratory birds over the edge?' -
Project arctische trekvogels gehonoreerd in Nederlands Polair Programma
28/08/2020 Het project 'Arctische trekvogels aan de rand van de afgrond?' met als hoofdaanvrager Bart Nolet is gehonoreerd in het Nederlands Polair Programma. -
Polarised debate: polar bear blogs reveal dangerous gap between climate-change facts and opinions
Climate-change discussions on social media are very influential. A new study in BioScience shows that when it comes to iconic topics such as polar bears and retreating sea ice, climate blogs fall into two distinct camps. With little or no overlap between deniers and the available scientific facts. The study’s first author, NIOO-KNAW researcher Jeff Harvey says: “It’s time for scientists to counter the misinformation and engage directly with the public far more.” -
Debat tussen tegenpolen: ijsberenblogs bewijzen gapend gat tussen feiten en meningen in klimaatdiscussie
Klimaatdiscussies op sociale media hebben veel invloed. Een internationaal onderzoeksteam onder leiding van het Nederlands Instituut voor Ecologie (NIOO-KNAW) bewijst vandaag in BioScience dat klimaatblogs over iconische ijsberen en zeeijs in twee aparte groepen uiteen vallen. Hierbij matcht de mening van ontkenners van klimaatverandering niet met de door hen aangehaalde wetenschappelijke feiten. Iets waar veel argeloze lezers zich niet van bewust zijn. “Het is hoog tijd dat wetenschappers de wijdverbreide foute informatie bestrijden en veel meer met het brede publiek van gedachten wisselen.” -
'It depends': soil organic matter doesn't automatically increase crop yield
More organic matter in the soil may be beneficial for the climate, but contrary to what's been assumed it doesn't automatically increase crop yield. The amount is not the only factor, concludes research by NIOO's Stijn van Gils: it also depends on the context. -
Stof tot nadenken: niet automatisch meer oogst door meer organische stof in bodem
Dat de hoeveelheid organische stof in de bodem de vruchtbaarheid en dus de opbrengst bepaalt, blijkt toch anders te liggen. Onderzoek van het Nederlands Instituut voor Ecologie (NIOO-KNAW) wijst dat uit. Waar het voor het klimaat goed is om meer organische stof – de C van CO2 – in de bodem te stoppen, heeft een boer daar pas wat aan als hij verder kijkt dan hoeveelheden alleen. NIOO-onderzoeker Stijn van Gils promoveert vandaag op dit onderzoek bij Wageningen University. -
Can barnacle geese predict the climate?
The breeding grounds of Arctic migratory birds such as the barnacle goose are changing rapidly due to accelerated warming in the polar regions. They won't be able to keep up with these climatic changes unless they can somehow anticipate them. A team of researchers from the Netherlands Institute of Ecology (NIOO-KNAW) employed computer models to assess the prospects of the geese and their young. The results can be found in the scientific journal Global Change Biology.