Fosters Ley Arable

  • Experiment Code: R/RN/2
  • Experiment Site: Rothamsted
  • Objectives: To study the effects of various three-year leys on the fertility of the soil as measured by a sequence of three arable test crops on a site that was previously long-term grassland.
  • Description: The site was originally long-term arable (>100 years). Some plots stayed in permanent grass, others went into continuous arable cropping and some alternated between leys and arable. Yields are no longer measured (since 1990) but SOM continues to be measured. Available P and K in soil have been measured periodically. The main comparisons have been of four rotations, each of six years duration. The arable with lay rotation includes a one-year ley cut for hay. The other three have had three-year leys of different species and different management, followed by three arable crops and are referred to as 'test crops'. Fosters Ley Arable runs in contrast to Highfield Ley Arable which has the same soil type but a different cropping history (having been in permanent grass for 100+ years) bot have similar treatments. It also provides a comparison to the Woburn Ley Arable experiment which has a different soil type.
  • Date Start: 1948
  • Date End: Ongoing

Key Contacts

  • Andy Gregory

  • Role: Experiment Manager
  • Organisation: Rothamsted Research
  • Address: West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom

  • Sarah Perryman

  • Role: Data Manager
  • Organisation: Rothamsted Research
  • Address: West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom

  • Margaret Glendining

  • Role: Data Manager
  • ORCID: 0000-0002-6466-4629
  • Organisation: Rothamsted Research
  • Address: West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom

Funding

Experimental Design

Description

  • Plots of four rotations with reseeded grass and permanent grass were laid down in randomised blocks of five or six plots each. There were 12 blocks, two in each phase of a six-year cycle. The whole experiment was started over three seasons 1949, 1950 and 1951 and blocks due to start in 1952, 1953 and 1954 started three years earlier with 'dummy' test crops. Each plot was 0.088 acre.

Design

  • Period: 1949 - 1954

Crops

Crop Years Grown
Alfalfa
Grass Leys
Wheat
Potatoes
Barley

Crop Rotations

Rotation Crops
Lucerne ( - )
Grazed ley ( - )
Cut grass ( - )
Arable with hay ( - )

Measurements

Variable Unit Collection
Frequency		 Material Description Crop
Soil Total Carbon
Plant Available Phosphorous
Plant Available Potassium
Yield Components

Description

  • Various changes were made in this period; Spring oats were introduced instead of barley as the third treatment crop of the 'arable with hay' rotation in order to lessen risk of infection of wheat by take-all or eyespot diseases. Dressings of fertiliser K were applied before the first treatment crops were sown and to the R and G plots. This was because soil and plant analyses had shown plots growing hay, cut grass and lucerne lost more K than grazed plots, which would affect the yield of test crops. Plots were further split to measure potash and phosphate responses in test-crop potatoes that followed different leys. From 1958, the standard applications of P and K were revised and corrective dressing applied

Design

  • Period: 1955 - 1960

Crops

Crop Years Grown
Alfalfa
Grass Leys
Wheat
Potatoes
Oats

Measurements

Variable Unit Collection
Frequency		 Material Description Crop
Soil Total Carbon
Plant Available Phosphorous
Plant Available Potassium
Yield Components

Description

  • Various changes were made during this period; Sugar beet replaced potatoes as the second treatment crop of the 'arable with hay' rotation. The test of FYM to second treatment crop was omitted from 1961 (to minimise soil born pathogens such as cyst-nematodes). All sub-plot tests of manures to treatment crops were discontinued to allow more elaborate tests on the test-crops; wheat and barley received N at four rates. From 1962, no more plots were sown to 'grazed ley' or 'cut grass'. Instead two new three-year rotations were introduced: i. All-grass receiving fertiliser ii. Clover-grass receiving no fertiliser. From 1962 FYM was ploughed in (previously applied in furrows before planting). From 1962 potatoes were planted by machine. From 1963 certain plots of reseeded grass were ploughed up and put into test-crop sequence and then into 'arable with hay' treatm

Design

  • Period: 1961 - 1967

Crops

Crop Years Grown
Grass Leys
Grass Clover Leys
Wheat
Sugar Beet
Oats

Measurements

Variable Unit Collection
Frequency		 Material Description Crop
Soil Total Carbon
Plant Available Phosphorous
Plant Available Potassium
Yield Components

Description

  • Two phases were maintained to study the effects of treatments on changes in soil organic matter. In one of these, the reseeded plots ploughed up in 1964 were sown down again in 1973 to restore the original pattern. The other four phases the normal test crop sequence was followed by continuous wheat cropping to study soil-borne diseases.

Design

  • Period: 1968 - Now

Crops

Crop Years Grown
Alfalfa
Grass Leys
Grass Clover Leys
Reseeded Grass
Wheat
Sugar Beet
Oats
Potatoes
Barley
Feed Grasses

Measurements

Variable Unit Collection
Frequency		 Material Description Crop
Soil Total Carbon
Plant Available Phosphorous
Plant Available Potassium
Yield Components

Site: Fosters Ley Arable - Rothamsted

  • Experiment Site: Rothamsted
  • Description: The field had been under arable cropping for centuries.
  • Management: Fosters is thought to have been in arable crops for several centuries. Cropping would have included wheat/barley/oats/field beans/root crops with occasional one-year hay crops. It would have had some farmyard manure but little fertilizer.
  • Visit Permitted?: Yes
  • Visiting Arrangments: By arrangement with Dr Andy Gregory, LTE Manager
  • Elevation: 130 Metres
  • Geolocation:    51.812922, -0.379079

Soil

  • Type: Luvisol
    Batcombe series flinty silt or loam over clay-with-flints.

Datasets available

Title (hover for a longer description) Year of Publication Type Identifier Version

Soil data

Rothamsted Ley Arable Soil Organic Carbon 1948-2008; Fosters 2018 Summary 10.23637/rrn2-OARFLAsoc-1
 01
.

Key References

2017

  • Jensen, J. L. , Schjonning, P. , Watts, C. W. , Christensen, B. T. and Munkholm, L. J.(2017) "Soil texture analysis revisited: Removal of organic matter matters more than ever", PLOS ONE, 12, e0178039
    DOI: 10.1371/journal.pone.0178039

2016

  • Gregory, A. S. , Dungait, J. a. J. , Watts, C. W. , Bol, R. , Dixon, E. R. , White, R. P. and Whitmore, A. P.(2016) "Long-term management changes topsoil and subsoil organic carbon and nitrogen dynamics in a temperate agricultural system", European Journal of Soil Science, 67, 421-430
    DOI: 10.1111/ejss.12359

2009

  • Johnston, A. E. , Poulton, P. R. and Coleman, K.(2009) "Soil organic matter: its importance in sustainable agriculture and carbon dioxide fluxes", Advances in Agronomy, 101, 1-57
    DOI: 10.1016/s0065-2113(08)00801-8
  • Hirsch, P. R. , Gilliam, L. M. , Sohi, S. P. , Williams, J. K. , Clark, I. M. and Murray, P. J.(2009) "Starving the soil of plant inputs for 50 years reduces abundance but not diversity of soil bacterial communities", Soil Biology and Biochemistry, 41, 2021-2024
    DOI: 10.1016/j.soilbio.2009.07.011

1973

  • Johnston, A. E.(1973) "The effects of ley and arable cropping systems on the amounts of soil organic matter in the Rothamsted and Woburn ley-arable experiment", Rothamsted Experimental Station, Report for 1972 , Part 2 , 131-159
    Get from eRAdoc: ResReport1972p2-131-159

1949

1885

  • Lawes, J. B. and Gilbert, J. H.(1885) "On some points in the composition of soils; with results illustrating the sources of the fertility of Manitoba Prairie soils", Journal of the Chemical Society, 47, 380-422 (Series 1/67)
Rothamsted
BBSRC

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