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| Author(s): | Deller, B.;
Mehnert, Cl. |
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| Author Affiliation: | Bayerische Hauptversuchsanstalt für Landwirtschaft, Weihenstephan, 8050 Freising 1; Lehrstuhl für Grünlandlehre der Technischen Universität München, 8050 Freising 1 |
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| Title: | Nährstoffhaushalt von stark vermagerten Rasentragschichten nach Filzanhäufung |
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| Translated Title: | Thatch accumulation and the nutrient content of rootzones with very low inherent fertility |
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| Source: | Rasen, Grunflachen, Begrunungen. Vol. 11, No. 1, March 1980, p. 6-11. |
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| # of Pages: | 6 |
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| Publishing Information: | Bonn-Bad godesberg, Hortus Verlag |
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| Keywords: | TIC Keywords: Nutrients; Micronutrients; Thatch; Sports turf; Carbon to Nitrogen ratio; Root zone; Thatch accumulation; Cation exchange capacity
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| Abstract/Contents: | "It was the purpose of this experiment to examine how a thatch layer affects the nutrient content of turf rootzones with very low inherent fertility. Four sports grounds, approximately eight years old, were examined: three had been constructed without topsoil and one with topsoil. All the sports grounds had been managed, fertilized and irrigated in the same way. The findings were as follows: The thatch layers showed a higher cation exchange capacity (KAK) than the sand-peat mixture underneath. The resultant nutrient retention capacity was considerable. The C/N ratios in the 0 - 2 cm mineral soil layer and in the thatch layer were similar and relatively small, which means that the C/N ratio cannot be the reason for the thatch. Compared with the rootzones made without topsoil, which are to some extent deficient in major and trace elements, the thatch layer had a particularly strong concentration of nutrients from fertilizer. In the rootzone with topsoil incorporated into it, nutrients were distributed uniformly throughout the whole depth examined, as a result of the mixing action of earthworms. Nutrient deficiencies are less likely than in rootzones without top soil because the nutrient content is consistently higher. It is suggested to make up sand-peat mixtures not only with a basic fertilizer containing the main nutrients but also with trace elements, because it is difficult subsequently to introduce these throughout the entire depth of the rootzone. Regarding the reliability of nutrient analyses on rootzone materials, it seems wise to discard the thatch layer when samples are taken." |
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| Language: | German |
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| References: | 13 |
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| Note: | Abstract appears in German, English and French
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Deller, B., and C. Mehnert. 1980. Nährstoffhaushalt von stark vermagerten Rasentragschichten nach Filzanhäufung. (In German) Rasen Turf Gazon. 11(1):p. 6-11. |
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