This dataset contains the soil pH, percentage of total soil carbon (C) nitrogen (N), phosphorus (P) and exchangeable calcium (Ca) in the topsoil (0-23cm) of the Woburn Continuous Barley experiment, 1876 to 1932. Baseline measurements were taken in November 1876 before the start of the experiment. The soil was then sampled from each plot in 1888, 1927 and 1932. Selected plots were also sampled in 1898, 1916 and 1922. The dataset also contains details of the fertilizer, manure and lime treatments, 1876-1926. No fertilizer, manure or lime was applied after 1926. The soil at Woburn contained little free calcium carbonate, and soil pH was 6.1 in 1876. Consequently, where ammonium sulphate was applied (plots 2, 5 and 8) the soil soon became acidic and yields declined markedly within 20 years. These were the first experiments in the UK where lime was applied to try to correct soil acidity.
Data from Crowther (1936) and Mattingly et al (1975), see Resource Provenance.
The Woburn Continuous Barley experiment originally had 11 plots (1-11), with different fertilizer and manure treatments. Some plots were divided into sub-plots (a and b) from 1882, and into sub sub-plots (i and ii) from 1905, to test different treatments, mainly with and without lime. Full details are given in Related Documents.
Data expressed on air-dried soil basis. Ground soil, passed through a 0.5mm sieve. Soil samples in 1876, 1888 and 1898 taken with sample box 15cm x 15cm x 23cm deep, composite of three holes. 1927 sample cut by spade 23cm deep, 4-5 holes per plot combined into composite samples. 1932 sample taken with a small semi-cylindrical sampler, 20 holes per plot, soil combined into composite samples.
This dataset is available under a Creative Commons Attribution Licence (4.0).
YOU MUST CITE AS: Margaret Glendining (2022). Dataset: Woburn Continuous Barley Experiment soil data 1876-1932 Electronic Rothamsted Archive, Rothamsted Research https://doi.org/10.23637/wxb6-soil7632-01
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The soil was relatively fertile at the start of the experiment, thought to be due to large FYM applications to the preceding arable rotation. Soil fertility generally declined, except in plots given FYM.
Methods of Analysis references:
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