Bodemvitaliteit in de biologische kasteelt : effect van grondbewerking en introductie van regenwormen op de bodemstructuur

W.J.M. Cuijpers, G.J.H.M. van der Burgt

Research output: Book/ReportReportProfessional

Abstract

In 2006 en 2007 a research was done to investigate the effect on soil structure of tillage, organic manure and introduction of worms. There were no repetitions of the treatments, so the results can only be indicative. A less intensive soil tillage improved the overall soil structure, measured on the parameters penetration resistance, water infiltration and bulk density. The yield increased substantially. The effect on the soil structure was temporally. Short after soil tillage (April – May) differences could be measured, but in October no differences could be observed. Farmyard manure instead of compost, in combination with a 50% reduction of basis fertilizer nitrogen application out of additional fertilizers did not reduce the yield although total nitrogen application and nitrogen availability were substantially reduced. Out of this research it can not be concluded whether this is caused by an improved soil quality due to FYM or by a surplus of nitrogen in the ‘standard’ way of manure and fertilizer application. The introduction of Aporrectodea calliginosa is more successful then that of Dendrobaena veneta. Because of this, and because of the different function of these worms in the soil ecosystem, little effect of D. veneta on soil structure may be expected.
Original languageDutch
Place of PublicationDriebergen
PublisherLouis Bolk Instituut
Number of pages31
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • organic farming
  • soil fertility
  • tilth
  • tillage
  • crop yield
  • earthworms
  • fertilizer application
  • greenhouse horticulture
  • greenhouse vegetables

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