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Titolo:
Changes in the subsoil of long-term trials in Halle (Saale), Germany, caused by mineral fertilization
Autore:
Garz, J; Schliephake, W; Merbach, W;
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: 663 - 668
SICI:
1436-8730(200012)163:6<663:CITSOL>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Keywords:
long-term experiments; mineral fertilizer; subsoil; acidification; nutrient availability;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Garz, J Univ Halle Wittenberg, Landwirtschaftl Fak, Inst Bodenkunde & Pflanzenernahrung, Adam Kuckhoff Str 17B, D-06108 Halle, Saale, Germany Univ Halle Wittenberg Adam Kuckhoff Str 17B Halle Saale Germany D-06108
Citazione:
J. Garz et al., "Changes in the subsoil of long-term trials in Halle (Saale), Germany, caused by mineral fertilization", J PLANT NU, 163(6), 2000, pp. 663-668

Abstract

Four long-term mineral fertilization trials (50 years) on a Haplic Pheozemderived from sandy loess were conducted. Fertilization caused changes to the plough layer (0-25 cm) and to the undisturbed subsoil. Without lime, most remarkable acidification;:occurred in the plough layer, but. only slight effects were evident in the subsoil. Where lime was applied, a considerableamount of Ca-sulphate was formed. This leached out of the plough layer andaccumulated throughout the profile, especially in dry years. Where fertilization was nor adequate, there was a substantial contribution of K and P from the subsoil (mainly of its upper parts). Where the supply of these two elements continously exceeded their removal, a distinct increase of available K and P at depths of about 50 cm indicated transfer of both elements to the subsoil. Due to the high fixing capacity of both P and K in layers beneath 50 cm, leaching out of the rooting zone can be ignored. Mg and especially Na, applied with some of the fertilizers, were more mobile than K.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:41:28