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Jagdschloss Glienicke
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Jagdschloss Glienicke / Hoffmann, Christa (Rights reserved) (-
Einfluß der Bodenverdichtung auf Wurzel- und Sproßwachstum sowie die Phosphatversorgung von Zuckerrübe und Getreide
No full textEinfluß der Bodenverdichtung auf Wurzel- und Sproßwachstum sowie die Phosphatversorgung von Zuckerrübe und Getreide
No full textYield Potential of Sugar Beet – Have We Hit the Ceiling?
No full textThe yield of sugar beet has continuously increased in the past decades. The question arises, whether this progress will continue in the future. A key factor for increasing yield potential of the crop is breeding progress. It was related to a shift in assimilate partitioning in the plant toward more storage carbohydrates (sucrose), whereas structural carbohydrates (leaves, cell wall compounds) unintendedly declined. The yield potential of sugar beet was estimated at 24 t sugar ha-1. For maximum yield, sufficient growth factors have to be available and the crop has to be able to fully utilize them. In sugar beet, limitations result from the lacking coincidence of maximum irradiation rates and full canopy cover, sink strength for carbon assimilation and high water demand, which cannot be met by rainfall alone. After harvest, sugar losses during storage occur. The paper discusses options for a further increase in yield potential, like autumn sowing of sugar beet, increasing sink strength and related constraints. It is prospected that yield increase by further widening the ratio of storage and structural carbohydrates will come to its natural limit as a certain cell wall stability is necessary. New challenges caused by climate change and by prolonged processing campaigns will occur. Thus breeding for improved pathogen resistance and storage properties will be even more important for successful sugar beet production than a further increase in yield potential itself
Bone fragments in arable soils - zero tolerance for animal feed?
No full textIn autumn 2004, minute traces of bone fragments were found in some samples of sugarbeet dried pulp, which meant that these pellets could not be used as animal feed. An investigation was carried out to clarify if this could have been caused by soil adhering to the sugarbeet root. For this purpose, 198 soil samples were fractionated; the fine sand fraction (63 to 200 mu m) was microscopically analyzed for bone fragments. Bone fragments were found in 67% of the soil samples - even in soils where it can be proven that they had not been treated with organic fertilizer for 130 years. The topsoil contained up to 97 t bone fragments per ha. This shows that bone fragments are a ubiquitous component of arable soils. Therefore, it is likely that in all plants with adhering soil bone fragments will be found regardless of whether fertilizers containing bones were applied to the soil
Bone fragments in arable soils - zero tolerance for animal feed?
No full textIn autumn 2004, minute traces of bone fragments were found in some samples of sugarbeet dried pulp, which meant that these pellets could not be used as animal feed. An investigation was carried out to clarify if this could have been caused by soil adhering to the sugarbeet root. For this purpose, 198 soil samples were fractionated; the fine sand fraction (63 to 200 mu m) was microscopically analyzed for bone fragments. Bone fragments were found in 67% of the soil samples - even in soils where it can be proven that they had not been treated with organic fertilizer for 130 years. The topsoil contained up to 97 t bone fragments per ha. This shows that bone fragments are a ubiquitous component of arable soils. Therefore, it is likely that in all plants with adhering soil bone fragments will be found regardless of whether fertilizers containing bones were applied to the soil
Cyberattacks in agribusiness
No full textCyberattacks are increasing across different industry sectors. The agribusiness sector has seen an accelerating rate of ransomware attacks both upstream as well as downstream. The article analyses attacks which were reported over more than a decade and summarizes the major trends. The increasing connectivity and deployment of sophisticated IT solutions for precision and smart farming makes this sector potentially very vulnerable
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