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Titolo:
The long-term fertilization experiments in Halle (Saale), Germany - Introduction and survey
Autore:
Merbach, W; Garz, J; Schliephake, W; Stumpe, H; Schmidt, L;
Indirizzi:
Univ Halle Wittenberg, Landwirtschaftl Fak, Inst Bodenkunde & Pflanzenernahrung, D-06108 Halle, Saale, Germany Univ Halle Wittenberg Halle Saale Germany D-06108 8 Halle, Saale, Germany
Titolo Testata:
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE
fascicolo: 6, volume: 163, anno: 2000,
pagine: 629 - 638
SICI:
1436-8730(200012)163:6<629:TLFEIH>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Keywords:
long-term fertilization experiments; sustainable land use; nutrient availability; soil development; soil organic matter;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Merbach, W Univ Halle Wittenberg, Landwirtschaftl Fak, Inst Bodenkunde & Pflanzenernahrung, Adam Kuckhoff Str 17B, D-06108 Halle, Saale, Germany UnivHalle Wittenberg Adam Kuckhoff Str 17B Halle Saale Germany D-06108
Citazione:
W. Merbach et al., "The long-term fertilization experiments in Halle (Saale), Germany - Introduction and survey", J PLANT NU, 163(6), 2000, pp. 629-638

Abstract

Six of originally eight long-term trials in Halle (Saale), Germany, are still continuing. Five are situated at Julius-Kuhn-Feld, an experimental station launched by Julius Kuhn in Halle in 1866. Apart from the Eternal Rye trial established in 1878, those are phosphorus, potassium, lime, and organicfertilization long-term trials, all being launched by Karl Schmalfuss in 1949. Other longterm trials have been terminated, bur data are available on the effects of nitrogen fertilization and the physiological reaction of fertilizers. Another long-term trial in Halle (Adam-Kuckhoff-Strasse 17b) investigates the influence of fertilization on soil formation from loess, Up tonow, the major results are as follows:1. Changes in soil-ecological properties due to fertilization and relationwere only evident after 30 years, and new steady states sometimes took 70 years to occur.2. In the long term, the C- and N-contents of the soil largely depend on the amount of hardly decomposable organic matter applied with organic fertilization, High mineral-N doses, with consequent high crop and root residues,increased the humus content of the soil.3. Mineral fertilization can replace organic fertilization in terms of sustainable yield capacity provided equal nutrient amounts were applied.4. The high P-supply ability of the soil in Halle could not be explained by traditional soil analysis methods of calculating plant-available P. With some restrictions, the same is valid for K.5. At the experimental site, soluble salts (nitrate, sulphate) accumulatedin the subsoil,6. A regular lime demand of central German chernozems could be proved, especially in case of low soil organic matter (SOM) and physiologically acid fertilization.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 23:01:25