Rothamsted Research Station

Rothamsted Research is a world-leading, non-profit research centre that focuses on strategic agricultural science to the benefit of farmers and society worldwide.

It was founded in Harpenden, south-east England, in 1843 by Sir John Bennet Lawes. Between 1843 and 1856, Lawes and Sir Henry Gilbert established several long-term field experiments. Some failed or were discontinued because of poor soil structure and/or crop diseases. When Lawes died in 1900, the remaining experiments continued more or less as originally planned and are now known as the Classical Experiments. They are the oldest, continuous agronomic experiments in the world and therefore rightfully and uniquely famous. We carefully make management changes every 5-10 years to ensure that these experiments remain relevant. By asking new questions and applying new methods we gain novel insights.

There are several other long-term experiments at Rothamsted (Harpenden), and also at two other sites, Woburn (in Bedfordshire) and Saxmundham (in Suffolk) on contrasting soil types. We make the data and samples collected from the Classical and other long-term experiments available to researchers worldwide.

Field Plan and Soil Map of Rothamsted

The site and soils at Rothamsted are described in this booklet: Avery, BW & Catt, JA 1995 'The Soil at Rothamsted', Lawes Agricultural Trust, Harpenden. - underlying map is copyright OS DOI: 10.23637/ERADOC-1-143

History

Rothamsted Research is the longest-running agricultural research institution in the world. Its foundation dates from 1843 when John Bennet Lawes, the owner of the Rothamsted Estate, appointed Joseph Henry Gilbert, a chemist, as his scientific collaborator and planted the first of what were to become the classical Rothamsted long term experiments, on Broadbalk field. The scientific partnership between Lawes and Gilbert lasted 57 years, and together they laid the foundations of modern scientific agriculture and established the principles of crop nutrition.

In 1889, Lawes placed in trust his laboratory and experimental fields at the Rothamsted Estate, together with the sum of £100,000, thus creating the Lawes Agricultural Trust (LAT). His primary purpose was to ensure the continuation of the agricultural investigations which had for so many years been carried out in what had become known as the Rothamsted Experimental Station (RES).

During the 20th century, government progressively increased its support for agricultural food production in response to pressures created by the two World Wars and a burgeoning urban population. Over time, LAT and RES developed a close relationship with the then Agricultural Research Council (ARC, later to become the Agricultural Food Research Council, AFRC), and the Ministry of Agriculture, Fisheries and Food (MAFF), both of whom also occupied properties on the Rothamsted Estate. As a result of the consolidation of AFRC institutes in 1986, Rothamsted, the Long Ashton Research Station, Broom's Barn Experimental Station, and the Unit of Insect Neurophysiology and Pharmacology at Cambridge formed the Institute of Arable Crops Research (IACR).

In 1989, RES was established as a separate legal entity, operating under the sponsorship of AFRC as a public-sector research establishment. This was followed by the Biotechnology and Biological Sciences Research Council (BBSRC) in 1994, merging the former AFRC and with the biological science activities of the former Science and Engineering Research Council (SERC).

In early 2003, IACR ceased to exist as an entity and the newly restructured Institute changed its name to Rothamsted Research Ltd (RRes), including the integration of research and more than 50 scientific staff from the Long Ashton Research Station, which was closed. North Wyke Research, formerly part of the Institute of Grassland and Environmental Research (IGER), was merged with RRes in 2009, adding substantial capacity in grazing-livestock systems and environmental research.

SIR JOHN BENNET LAWES

John Bennet Lawes was an archetypal Victorian: scientist, entrepreneur and benefactor. He became interested in science after leaving Brasenose College, Oxford and, on assuming responsibility for the management of the Rothamsted Estate, started a number of small-scale experiments in pots between 1837 and 1839, and in the field between 1840 and 1841. He tested various ammonium salts on cabbages and showed that ammonium phosphate gave the greatest yields, thus highlighting the importance of phosphorus in plant nutrition. He also found that bones, treated with sulphuric acid produced a more soluble phosphorus fertiliser, later named superphosphate, which greatly increased the yields of turnips grown in the soils at Rothamsted. This invention, patented in 1842, enabled him to construct the world’s first commercial fertiliser factory.

History of the Lawes Trust

Sir John Bennet Lawes, with Sir Joseph Henry Gilbert, established Rothamsted Experimental Station in 1843. In 1889, Lawes established and endowed The Lawes Agricultural Trust with £100,000, which ran the centre from 1889 to 1990. His primary purpose was to ensure the continuation of agricultural investigations. During the 20th century, government progressively increased its support for agricultural food production in response to pressures created by the two world wars and a burgeoning urban population.

In 1934, the trust purchased the freehold interest in the Rothamsted Estate. Following later additions, the property interests of the trust grew to comprise 330 hectares at Harpenden - which includes an experimental farm and Rothamsted Manor (Grade 1 listed), residential houses and flats and commercial properties. At Higham in Suffolk, the trust owns the freehold interest in the 77-hectare Broom's Barn Experimental Station.

Over time, LAT and RES developed a close relationship with the then Agricultural Research Council (ARC, later to become the Agricultural Food Research Council, AFRC), and the Ministry of Agriculture, Fisheries and Food (MAFF), both of whom also occupied properties on the Rothamsted Estate. As a result of the consolidation of AFRC institutes in 1986, Rothamsted, the Long Ashton Research Station, Broom's Barn Experimental Station, and the Unit of Insect Neurophysiology and Pharmacology at Cambridge formed the Institute of Arable Crops Research (IACR).

In 1990, the business and undertaking of the Rothamsted Experimental Station was transferred from the Lawes Agricultural Trust to a separate charitable company of the same name. In 1991, the employees of the Station became employees of the Agriculture and Food Research Council, now the BBSRC. In early 2003, IACR ceased to exist as an entity and the newly restructured Institute changed its name to Rothamsted Research Ltd (RRes), including the integration of research and more than 50 scientific staff from the Long Ashton Research Station, which was closed. North Wyke Research, formerly part of the Institute of Grassland and Environmental Research (IGER), was merged with RRes in 2009, adding substantial capacity in grazing-livestock systems and environmental research.

Experiments at Rothamsted Site

Classical Experiments

Experiment Code Purpose Started
Broadbalk R/BK/1 To test the effects of various combinations of inorganic fertilizer and organic manures on the yield of winter wheat 1843
Broadbalk Wilderness R/BK/1W To see the effects on soil and vegetation of allowing arable land to revert naturally to woodland. See also the comparable Geescroft Wilderness site. 1882
Park Grass R/PG/5 To investigate ways of improving the yield of hay by the application of inorganic fertilizers and organic manures 1856
Hoosfield Spring Barley R/HB/2 To test the effects of different inorganic fertilizers and farmyard manure on the yield of spring barley 1852
Alternate Wheat and Fallow R/WF/3 To observe the effects of alternate fallowing on the yield of winter wheat on a part of Hoosfield that had received no applications of fertilizers or manures since 1851 1856-2015
Exhaustion Land R/EX/4 To observe the residual effects of mineral fertilizer and manures on the yield of spring barley and winter wheat. Soils now have a range of plant available P and K 1876
Geescroft Wilderness R/GE/9 To see the effects on soil and vegetation of allowing arable land to revert naturally to woodland. See also the comparable Broadbalk Wilderness site. 1886
Garden Clover R/GC/8 To test factors affecting the persistence of continuous red clover grown on a rich garden soil 1854
Agdell R/AG/6 Effects of fertilizers and organic manures on four-course rotations (cereal, root, legume, fallow). Stopped in 1990 after testing residual effects of P and K. Only archived crop and soil samples are now available 1848-1990
Barnfield R/BN/7 Effects of fertilizers and organic manures on root crops, arable crops and grass & clover. No treatments applied or yields measured since 2001, but the site is still a useful resource for studies on plant nutrient dynamics 1843-2001

Other Long-term Experiments

Experiment Code Purpose Started
Acid Strip R/RS/9 To observe the effects of soil acidity on soil properties under winter wheat 1950
Fosters Ley Arable R/RN/2 To observe the effects of continuous arable and ley arable cropping systems on soil organic matter and fertility, on a site that was originally long-term arable (>100 years) 1948
Highfield Ley Arable R/RN/1 To observe the effects of continuous arable and ley arable cropping systems on soil organic matter and fertility, on a site that was originally long-term grassland (>100 years) 1948
Highfield Bare Fallow R/RS/1 The effects of long-term bare fallow on soil organic matter and fertility, after long-term grass (>100 years) 1959
Highfield Conversion R/CS/767 The effects of changes in agricultural land use and management on crop production and soil physical, chemical and biological parameters, on a site that was originally under long-term grass (>100 years). 2008
Fallow Reversion Plots - Highfield R/CS/683 The effects of converting previously long-term fallow into grass, arable and fallow 2009
Fallow Reversion Plots - Geescroft R/CS/684 The effects of converting previously long-term fallow into grass, arable and fallow 2009
Rothamsted Long-term Liming R/CS/10 To observe the effects of lime, P and K fertilizer treatments on the yield and composition of arable crops (there is a parallel experiment at Woburn) 1962-1996;2018
Rothamsted Amounts of Straw R/CS/326 To study the effects of a range of amounts of straw incorporated into the soil on winter wheat (there is a parallel experiment at Woburn) 1987-2017
Rothamsted Continuous Maize R/CS/477 To monitor the fate of organic carbon in the soil organic matter (there is a parallel experiment at Woburn) 1997-2015
Long-term Miscanthus Experiment R/CS/408 To quantify the biomass yield potential of Miscanthus sinensis giganteus 1993

Key References

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For further information and assistance, please contact the e-RA curators, Sarah Perryman and Margaret Glendining using the e-RA email address: era@rothamsted.ac.uk