Some environmental aspects of grassland cultivation; the effects of ploughing depth, grassland age, and nitrogen demand of subsequent crops

G.L. Velthof, H.G. van der Meer, H.F.M. Aarts

Research output: Book/ReportReportProfessional

Abstract

The Netherlands has submitted a derogation under the Nitrate Directives to the European Union (EU) in 2000. In the final opinion by a group of experts about the Dutch derogation, recommendations on ploughing of grasslands were included dealing with i) the depth of ploughing of permanent grassland, ii) the age of temporary grassland and iii) the nitrogen demand of the subsequent crop of temporary grassland. A literature study was carried out in order to provide scientific information on these three issues. No studies were found in literature in which the effects of cultivation depth on nitrogen mineralisation and losses in reseeded grassland were assessed. The results of transformation of grassland into arable land show no clear effects of ploughing depth on N mineralisation. Differences in nitrogen mineralisation after 5 and 3 years temporary grassland are small. Italian and perennial ryegrass, potato, silage maize, winter wheat, and several vegetables have a high nitrogen demand (i.e. >250 kg N ha-1).
Original languageDutch
Place of PublicationWageningen
PublisherAlterra
Number of pages27
Publication statusPublished - 2002

Publication series

NameAlterra-rapport
No.581

Keywords

  • grasslands
  • grassland management
  • grassland soils
  • environment
  • environmental factors
  • ploughing
  • nitrogen

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