Soil heterogeneity and soil testing.

Authors

  • T.J. Ferrari
  • F.H.B. Vermeulen

DOI:

https://doi.org/10.18174/njas.v3i4.17805

Abstract

The error of analysis is generally small. The standard deviation influenced by analysis and sampling averages 10% in P, K and Mg determinations. The error in pH value is approximately 0.1 per unit. There is little difference between grassland and arable land or between various types of soil in this respect; the size of the field has, on the average, no effect on the magnitude of sampling error. If it is desired to compare results of samplings of the same field taken in certain intervals, changes due to climate, farming operations, etc. have to be taken into consideration. The longer a field is under observation, the greater will be the significance and value of soil testing.- From authors' summary. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1955-11-01

Issue

Vol. 3 No. 4 (1955)

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.