The soil-physical basis of the improvement of clay cover-soils.

Authors

  • G.P. Wind
  • A.P. Hidding

DOI:

https://doi.org/10.18174/njas.v9i4.17613

Abstract

A shallow clay layer overlying sandy subsoil is very susceptible to drought. Since no roots penetrate the subsoil the crop gets moisture from the clay or from the sand by capillarity. Deep plowing gives complete improvement when spring water tables are at depths of <100 cm. With deeper water tables, deep plowing and sub-irrigation to 100 cm are necessary. For soils with a clay cover of 30 cm sub-irrigation to about 100 cm during March, together with deep plowing to 60 cm are recommended. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1961-11-01

Issue

Vol. 9 No. 4 (1961)

Section

Papers

License

© Copyright KLV All rights reserved. The copyright covers the exclusive right to reproduce and distribute the contribution, including reprints, translations, photographic reproductions, microform, electronic form (offline, online), or any other reproductions of similar nature. The Author may publish his/her contribution on his/her personal Web page provided that he/she creates a link to http://library.wur.nl/ojs/index.php/njas and that together with this electronic version it is clearly pointed out, by prominently adding "© KLV", that the copyright for this contribution is held by KLV. The full-text version may be available from the Author's Web page only after a delay of 12 months following the publication of the paper, whereas such a delay is not required for the abstract.