Effects of different nitrogen fertilization systems on crop yield and nitrogen use efficiency - Results of a field experiment in southern Germany.

ABSTRACT: The effects of the German Fertilizer Application Ordinance (GFO) on crop yield, nitrogen use efficiency and economical performance are highly controversial in science and practice in Germany. This study presents the results of a multi-year field experiment conducted at an experimental farm in southern Germany, in which the effects of different fertilizer systems on crop yield, protein concentration and nitrogen balance were analyzed. At this study site, relatively low N mineralization from the soil N pool was detected. Wheat (triticum aestivum L.) and barley (hordeum vulgare L.) showed strong yield declines from annual to multi-annual unfertilized plots, for maize (zea mays L.), this yield decrease was not observed. The recommendations according to GFO meets the fertil

SUBMITTER: Mittermayer M 

PROVIDER: S-EPMC10981040 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature