JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE, vol.168, no.1, pp.130-137, 2005 (SCI-Expanded)
Article / Article
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
Science Citation Index Expanded (SCI-EXPANDED), Scopus
oilseed rape, cultivars, nitrogen efficiency, root methods, root production, root activity, nitrate-N uptake, ZEA-MAYS L, NITRATE CONCENTRATION, MAIZE CULTIVARS, SOIL-CONDITIONS, SYSTEM, DENITRIFICATION, FERTILIZATION, CARBON, WHEAT, CORN
Erciyes University Affiliated:
Nitrate-N uptake from soil depends on root growth and uptake activity. However, under field conditions N-uptake activity is difficult to estimate from soil-N depletion due to different loss pathways. We modified the current mesh-bag method to estimate nitrate-N-uptake activity and root growth of two oilseed-rape cultivars differing in N-uptake efficiency. N-efficient cultivar (cv.) 'Apex' and N-inefficient cv. 'Capitol' were grown in a field experiment on a silty clayey gleyic fluvisol near Gottingen, northern Germany, and fertilized with 0 (N(0)) and 227 (N(227)) kg N ha(-1).