An adult pollen beetle is approximately 2,5 mm, with metallic greenish-black colour. Females bite oilseed rape buds and lay their eggs inside. Adults and larvae attack buds and flowers, resulting in withered buds and reduced pod set. However, damage rarely results in reduced yields for winter crops. Spring crops are more vulnerable, as the susceptible green/yellow bud stage often coincides with beetle migration. The model runs March-April. Control with help of the DSS Pollen beetle model on platform.ipmdecisions.net. Oilseed rape is only vulnerable if large numbers of pollen beetle migrate into the crop during green bud stage. This DSS predicts migration into crops based on air temperature, and so can be used to evaluate risk to crop. Only crops at growth stage 51 – 59 are vulnerable to damage, the period shortly before flowering: GS51: Flower buds visible from above (‘green bud’ stage) GS52: Flower buds free and level with the youngest leaves GS53: Flower buds raised above the youngest leaves GS55: Individual flower buds (main inflorescence) visible but closed GS57: Individual flower buds (secondary inflorescences) visible but closed GS59: Flower buds closed with first petals visible (‘yellow bud’ stage) The model uses Daily maximum air temperature. Only crops at growth stage 51 – 59 are vulnerable to damage, it is important to update growth stage in the DSS to indicate current crop growth stage. This DSS was adapted from work carried out in the UK, and is considered applicable, but not yet validated in, Belgium, Luxembourg, Netherlands, France, Germany, Rep. Ireland, and Denmark
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Agricultural run-off and subsurface drainage tiles transport a significant amount of nitrogen and phosphorus leached after fertilization. alchemia-nova GmbH in collaboration with University of Natural Resources and Life Sciences, Vienna developed two multi-layer vertical filter systems to address the agricultural run-off issue, which has been installed on the slope of an agricultural field in Mistelbach, Austria. While another multi-layer addressing subsurface drainage water is implemented in Gleisdorf, Austria. The goal is to develop a drainage filter system to retain water and nutrients. Both multi-layer filter systems contain biochar and other substrates with adsorption properties of nutrients (nitrogen, phosphorus). The filter system can be of practical use if an excess of nutrients being washed out is of concern in the fields of the practitioner by keeping the surrounding waters clean. This approach may result in economic value by re-using the saturated biochar as fertilizer and improving the soil structure, thus increasing long-term soil fertility. Link: https://wateragri.eu/a-bio-inspired-multilayer-drainage-system/
This project has received funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No 858735This project has received funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No 858735. FACTSHEET NANOCELLULOSE MEMBRANES FOR NUTRIENT RECOVERY Key information Functionalized nanocellulose membranes can take up nitrate and phosphate. These membranes can be put in a water treatment unit. As the membranes are biobased, degradable materials, they can after use be added to the soil, thus returning the leached nutrients back for their original purpose providing fertilizers (nutrient recycling).
Because variables such as temperature and humidity have a profound effect on the activity of crop pests, diseases and natural enemies, the ability to monitor environmental conditions within a crop has always been important for crop protection.