Journalartikel

Jahr der Veröffentlichung: 1991

Seiten: 900-902

Zeitschrift: Sugar Industry-Zuckerindustrie

Bandnummer: 116

Heftnummer: 10

ISSN: 0344-8657

Verlag: VERLAG DR ALBERT BARTENS

Abstract: 
The influence of the humus content on the EUF N fractions and the EUF N(org) quotients was investigated on 93 sites (46 arable soils, 47 vineyards). The nitrate as well as the EUF N(org) fraction were positively correlated to the humus content of the top soil, the correlation coefficients varying during the vegetation period (Tables 1 and 2). The positive relations between EUF nitrate and humus (Table 1) and EUF N(org) and humus (Table 2) resp. were though not close enough to reflect the influence of humus on the EUF N fractions. Only multiple regression equations could show that both EUF N fractions are significantly positively related to humus content (Table 3). The relationships between both EUF N fractions and humus could further be improved by including the EUF N(org) quotients into the multiple regression equation (Table 4). Thus the practical experience on the importance of humus on the N supply of soils is reflected by the EUF N fractions and the EUF N(org) quotient as well as by their interactions.

Harvard-Zitierstil: HORN, D. and NEMETH, K. (1991) PLANT AVAILABLE ORGANIC NITROGEN, EUFNORG AND ITS RELEVANCE FOR ENVIRONMENTALLY COMPATIBLE FARMING .3. INFLUENCE OF THE HUMUS CONTENT ON THE EUF N FRACTIONS OF THE SOIL, Sugar Industry-Zuckerindustrie, 116(10), pp. 900-902

APA-Zitierstil: HORN, D., & NEMETH, K. (1991). PLANT AVAILABLE ORGANIC NITROGEN, EUFNORG AND ITS RELEVANCE FOR ENVIRONMENTALLY COMPATIBLE FARMING .3. INFLUENCE OF THE HUMUS CONTENT ON THE EUF N FRACTIONS OF THE SOIL. Sugar Industry-Zuckerindustrie. 116(10), 900-902.