| Title (hover for a longer description) | Year of Publication | Identifier | Version |
|---|---|---|---|
Crop nutrient data | |||
| Rothamsted long-term liming experiment grain mineral composition | 2021 | https://doi.org/10.23637/rcs10-rltlgrain-01 |
01 |
Crop yield data - Annual | |||
| Rothamsted long-term liming experiment crop yield 1962-1996 | 2020 | https://doi.org/10.23637/rcs10-rltlyields-01 |
01 |
Soil data | |||
| Rothamsted long-term liming experiment soil chemical properties 1962-1996 | 2023 | https://doi.org/10.23637/rcs10-soil-01 |
01 |
| Rothamsted long-term liming experiment exchangeable cations re-analysed | 2023 | https://doi.org/10.23637/rcs10-rltlcation-01 |
01 |
Experimental plans, lime and fertilizer treatments details 1962-1996
| Variable | Value | Reference Year | Is Estimated | Is Baseline |
|---|---|---|---|---|
| Coarse sand content | 14% (Percent) | 1974 | NO | NO |
| Find sand content | 40% (Percent) | 1974 | NO | NO |
| Silt content | 23% (Percent) | 1974 | NO | NO |
| Clay content | 21% (Percent) | 1974 | NO | NO |
| Soil total carbon | 1.4% (Percent) | 1974 | NO | NO |
| Total soil nitrogen | 0.15% (Percent) | 1974 | NO | NO |
| Soil density | 2800t/ha (tonnes per hectare) | 1905 | NO | NO |
| Soil pH | 5.1 (pH) | 1962 | NO | YES |
Use the arrows to navigate between periods
| Crop | Years Grown |
|---|---|
| Spring Beans | 1962 - 1964 |
| Spring Barley | 1965 - 1967 |
| Potatoes | 1968 - |
| Fallow | 1969 - |
| Spring Oats | 1975 - |
| Spring Rapeseed | 1976 - |
Factors are the interventions or treatments which vary across the experiment.
| Level Name | Factor Name | Amount | Years | Frequency | Method | Chemical Form | Notes |
|---|---|---|---|---|---|---|---|
| Control Exposure | Liming Exposure | 0 t/ha | 1962 - 1980 | ||||
| Lime Low | Liming Exposure | 7 t/ha | 1962 - 1980 | Twice | 5 t/ha in 1962, 2 t/ha in 1978 | ||
| Lime Medium | Liming Exposure | 15 t/ha | 1962 - 1980 | Twice | 10 t/ha in 1962, 5 t/ha in 1978 | ||
| Lime High | Liming Exposure | 30 t/ha | 1962 - 1980 | Twice | 15 t/ha in 1962, 5 t/ha in 1963, 10 t/ha in 1978 | ||
| Control Exposure | Phosphate Fertilizer Exposure | 0 kgP/ha | 1962 - 1980 | ||||
| P Fertilizer Exposure | Phosphate Fertilizer Exposure | 27.5 kgP/ha | 1962 - 1980 | Annually in Spring | Triple Superphosphate | 55 kgP/ha applied to potatoes. Not applied in fallow years 1969, 1979, 1980. | |
| Control Exposure | Potassium Fertilizer Exposure | 104 kgK/ha | 1962 - 1980 | Annually in Spring | Muriate of Potash | In 1968 and 1974, 156 kgK/ha was applied to potatoes. Not applied in fallow years 1969, 1979 or 1980. | |
| Potassium K | Potassium Fertilizer Exposure | 104 kgK/ha | 1962 - 1980 | Annually in Spring | Muriate of Potash | In 1968 and 1974, 156 kgK/ha was applied to potatoes. Not applied in fallow years 1969, 1979 or 1980. | |
| Control Exposure | Rhizobium Leguminosarum Exposure | 0 | 1962 - 1962 | ||||
| Inoculated | Rhizobium Leguminosarum Exposure | 1962 - 1962 | Seed Dressing | ||||
| Control Exposure | Magnesium Nutrient Exposure | 0 kgMg/ha | 1974 - 1978 | ||||
| Magnesium Mg | Magnesium Nutrient Exposure | 112 kgMg/ha | 1974 - 1978 | Annually in Spring | Magnesium Sulfate | Not applied in 1975. Applied as Epsom salts 1974-1977 and as Kieserite in 1978. |
| Variable | Unit | Collection Frequency |
Material | Description |
|---|---|---|---|---|
| Yield Components | t/ha | Annually | AllCrops | Crop grain yields at 85% dry matter for cereals, 90% dry matter for oilseeds and fresh weight for potatoes. No straw data. |
| Soil pH | Every Few Years | pH in water 1:2.5 soil: water suspension from topsoil (0-23cm). Sampled in autumn/winter after harvest and before sowing the next crop. | ||
| Plant Available Phosphorous | ppm | Every Few Years | Soil | Olsen P (plant-available P) in soil, ppm in soil. |
| Crop | Years Grown |
|---|---|
| Oats | 1981 - 1982 |
| Potatoes | 1983 - |
| Fallow | 1984 - |
| Barley | 1985 - |
| Triticales | 1986 - |
| Lupins | 1987 - |
| Beans | 1989 - 1990 |
| Rapeseed | 1991 - 1992 |
| Lupins | 1993 - 1994 |
| Wheat | 1995 - 1996 |
Factors are the interventions or treatments which vary across the experiment.
| Level Name | Factor Name | Amount | Years | Frequency | Method | Chemical Form | Notes |
|---|---|---|---|---|---|---|---|
| Control Exposure | Phosphate Fertilizer Exposure | 0 kgP/ha | 1981 - 1996 | Control treatment 1962-1980, no fertilizer P applied. | |||
| P1 | Phosphate Fertilizer Exposure | kgP/ha | 1981 - 1996 | Triple Superphosphate | 25 kgP/ha applied in 1981, 1982 and 1988. Received K treatment 1962-1980, no fertilizer P applied. | ||
| P2 | Phosphate Fertilizer Exposure | kgP/ha | 1981 - 1996 | Triple Superphosphate | 25, 50 & 25 kgP/ha applied in 1981, 1983 and 1988 respectively. Received P treatment 1962-1980, a total of 495kgP/ha. | ||
| P3 | Phosphate Fertilizer Exposure | kgP/ha | 1981 - 1996 | Triple Superphosphate | 75, 25, 50 & 75 kgP/ha applied in 1981, 1982, 1983 and 1988 respectively. Received PK treatment 1962-1980, a total of 495kgP/ha. | ||
| Control Exposure | Liming Exposure | 0 t/ha | 1980 - 1996 | ||||
| Lime Low | Liming Exposure | 8.0 t/ha | 1982 - 1987 | 3 Times | Ground Chalk | 2, 5 and 1 t/ha chalk applied 1982, 1983 and 1987 respectively. Total application 1962-1987 = 15 t/ha. | |
| Lime Medium | Liming Exposure | 9.5 t/ha | 1982 - 1987 | 3 Times | Ground Chalk | 5, 3 and 1.5 t/ha chalk applied 1982, 1983 and 1987 respectively. Total application 1962-1987 = 24.5 t/ha. | |
| Lime High | Liming Exposure | 22.5 t/ha | 1982 - 1987 | 3 Times | Ground Chalk | 10, 10 and 2.5 t/ha chalk applied 1982, 1983 and 1987 respectively. Total application 1962-1987 = 52.5 t/ha. | |
| Control Exposure | Manganese Nutrient Exposure | 0 kg/ha | 1987 - 1990 | ||||
| Manganese | Manganese Nutrient Exposure | 0.3 kg/ha | 1987 - 1990 | Annually | Manganese Sprays | Foliar spray applied twice a year | |
| Control Exposure | Sulfate Fertiliser Exposure | 0 kgS/ha | 1991 - 1996 | ||||
| Sulphur | Sulfate Fertiliser Exposure | 30 kgS/ha | 1991 - 1996 | Annual | Calcium Sulfate |
| Variable | Unit | Collection Frequency |
Material | Description |
|---|---|---|---|---|
| Yield Components | t/ha | Annually | AllCrops | Crop grain yields at 85% dry matter for cereals, 90% dry matter for oilseeds and fresh weight for potatoes. No straw data. |
| Soil pH | Every Few Years | Soil | pH in water 1:2.5 soil: water suspension from topsoil (0-23cm). Sampled in autumn/winter after harvest and before sowing the next crop. | |
| Plant Available Phosphorous | ppm | Every Few Years | Soil | Olsen P (plant-available P) in soil, ppm in soil. |
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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