Available nitrogen in soils and its determination by the 'Nmin-method'and by electroultrafiltration (EUF)

K Mengel - Fertilizer research, 1991 - Springer
Excess nitrogen fertilizer rates are an environmental hazard. To avoid excess rates, the level
of available nitrogen in the soil must be known and considered for assessing the nitrogen …

Changes in hot water soil extracts brought about by nitrogen immobilization and mineralization processes during incubation of amended soils

G Redl, C Hübner, F Wurst - Biology and fertility of soils, 1990 - Springer
During incubation of an acid cambisol and an alkaline fluvisol, amended with glucose and
nitrate, hot water soil extracts were analysed for N content, ultraviolet absorption, and …

Nitrogen use in vegetable crops in temperate climates

MK Schenk, H Stralle - Horticultural reviews, 1998 - books.google.com
Nitrogen use in vegetable crops in temperate climates Page 204 Nitrogen Use in Vegetable
Crops in Temperate Climates MK Schenk Institute of Plant Nutrition Department of Horticulture …

Bedeutung der Kalium‐Verarmung in der Rhizosphäre und der Tonminerale für die Freisetzung von nichtaustauschbarem Kalium und dessen Bestimmung mit HCl

T Kong, D Steffens - Zeitschrift für Pflanzenernährung und …, 1989 - Wiley Online Library
An vier verschiedenen Böden (Basalt‐Braunerde, C‐Horizont einer Keuper‐Braunerde,
Marschboden, Löß‐Parabraunerde) wurde untersucht, inwieweit in Wurzelnähe die …