Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Der Statische Düngungsversuch zu Beginn und Ende des 20. Jahrhunderts
Autor Merbach, I.; Körschens, M.;
Journal / Serie Archiv für Acker- und Pflanzenbau und Bodenkunde
Erscheinungsjahr 2002
Department BOFO;
Band/Volume 48
Heft 5
Sprache deutsch;
Keywords yield; nitrogen balances; atmogenic nitrogen; static fertilization experiment; long time experiment
Abstract

Changes of yields, nitrogen uptake on the zero plots and nitrogen balances are discussed in the course of the decades at the Static Fertilization Experiment exemplary. 1991-2000 yields of cereals on the fertilized plots were nearly 200% in comparison to 1906-1915. At potatoes and sugar beets increase of yields was smaller. In the middle of all crops 52kg/ha nitrogen were taken up on the unfertilized plots in the years 1959-2000. Since there is a balance in the soil this nitrogen can only derived from the air. On the PK plots the atmogenic nitrogen input is 6kg/ha still higher. Crops with a long vegetation period like winter wheat and sugar beets take up more atmogenic nitrogen than such with a shorter vegetation period like summer barley and potatoes. The atmogenic nitrogen input per day of vegetation period is between 0,24 (winter wheat) and 0,38 (sugar beet)kg/ha and day. Nitrogen balances of the more important variants show that nitrogen uptake is higher than nitrogen input for a long time. In comparison of the decades 1961-1970 and 1991-2000 the best effect is in the case of mineral fertilization alone, also at increasing nitrogen input at the end of the century. The reason is the optimal control of nitrogen amount and time of application. In contrast organic fertilization and nitrogen release from the organic matter you can't control with the result of more unfavourable balances.

ID 5796
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=5796
Merbach, I., Körschens, M. (2002):
Der Statische Düngungsversuch zu Beginn und Ende des 20. Jahrhunderts
Arch. Acker- Pflanzenbau Bodenkd. 48 (5), 413 - 422