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Die Wurzelentwicklung von Zuckerrübenpflanzen auf einem Sandlöß-Standort und ihre Bedeutung für die Stickstoffernährung |
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| Authors: | J Garz M Abdallah W Schliephake |
| Institution: | Institut für Pflanzenernäbrung und Düngung, Martin-Luther-Universität Halle-Wittenberg, Germany |
| Abstract: | Root development of sugar beet plants on a sandy loess site with regard to nitrogen nutrition. Root development of sugar beet plants in a sandy loess soil (Haplic Phaeozem) was observed from the early seedling stage up to harvest by measuring at first the greatest vertical and lateral extension of the root systems of single plants and later the rooting density of the whole plant stands (auger method, profile wall method). During the seedling stage not only the subsoil, but also large parts of the topsoil between the plants remained unoccupied by the root systems. In this phase the greatest lateral extension of single roots reaches nearly the length of the greatest leaf of the plant. With the closure of the canopy the rooting density in the topsoil accounts to 1–2 cm cm In summer roots penetrate to a depth of 100–150 cm with rooting densities of 0.1 to 1 cm - cm |
| Keywords: | Rooting density sugar beets nitrogen uptake |