Crop rotations with and without ley - Säby
This experiment has been added by the GLTEN Curators using existing published sources.
- Local identifier
- R4-1103-5
- Years operational
- 1969—
- Objective
- To investigate the long-term effect of rotational grass and grass/clover leys on the yield of annual crops in the crop sequence depending on N-fertilisation
- Description
- This studies the effects of two-year leys on yields of crops in the rotations under different nitrogen fertilisation regimes and is repeated at Lanna and Stenstugu, Sweden
- Data Access Statement
- Don't know
- Data Access Notes
- An online application form for access to these long-term field experiments or data from these experiments. Soil sample archive available. https://www.slu.se/globalassets/ew/org/centrb/langliggande/gb-ltt-application-form-slu-20140820.docx
- Data license
- Don't know
- Data policy
- https://www.slu.se/globalassets/ew/org/centrb/langliggande/gb-guidelines_lte_slu_20140820.pdf
- Organizations
- Nordic LTE Research Platformresearch organisationSwedish University of Agricultural Sciences, Agricultural Long-Term Experimentsresearch organisation
- Person
- Dr Goran BergkvistSwedish University of Agricultural SciencesDepartment of Crop Production Ecology
Site: Crop rotations with and without ley - Säby
- Type
- research station field
- Local code
- R4-1103-5
- Location
- SabyUpplandSweden
- Geographic location
- 59.49, 17.42
- Visits permitted?
- Yes
- Visiting arrangements
- Complete online application
- Soil description
- silt loam
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? clay content 0 – 25 Centimetres 23 Percent silt content 0 – 25 Centimetres 53 Percent sand content 0 – 25 Centimetres 20 Percent soil organic matter 0 – 25 Centimetres 4 Percent - Climate properties
Variable Time period Value (range) Units air temperature 1961 – 1990 5.3 degree Celsius precipitation 1961 – 1990 565 millimeter
Design period: (1969—)
- Design Type
- Split split plot
- Description
- Size of treated plot (length × width and area) 4.75 × 18.65 = 89 m²
- Design description
- 72 - 3-factorial split-split-plot design. Three crop sequences in main plots are replicated six times. Each replicate is at a different position in the crop sequence. Four N-fertilizer levels are included in sub-sub-plots.
- Number of plots
- 72
- Number of replicates
- 6
- Crops
Crop Years grown rapeseed winter wheat grass clover leys spring barley spring oats grass leys spring wheat bare fallow - Crop Rotations
- Crop rotation A
- 1rapeseed
- 2winter wheat
- 3spring oats
- 4spring barleyunder sown ley
- 5grass clover leys
- 6grass clover leys
Crop rotation B- 1rapeseed
- 2winter wheat
- 3spring oats
- 4spring barleyunder sown ley
- 5grass leys
- 6grass leys
Crop rotation C- 1rapeseed
- 2winter wheat
- 3spring oats
- 4spring barley
- 5spring wheat
- 6bare fallow
- Factor
- Factor name
- Factor levels
- nitrogen fertilizer exposure *the N fertilisation for clover grass leys is based on the percentage of legume crops; the higher the percentage of legumes, the lower the N fertilisation
N0 (0 kgN/ha)
Applied to crop: All cropsThe N0 treatment was fertilised with 30 kg ha–1 before sowing of grass leys and oilseeds to facilitate the establishment of these cropsN1 (40-80 kgN/ha)
Applied to crop: All cropsRate varies for different crops: spring oats 40; winter wheat 45; oilseed 60; spring barley 60; spring wheat 60; grass ley 45+35; *clover-grass ley 0-80N2 (60-120 kgN/ha)
Applied to crop: All cropsRate varies for different crops: spring oats 80; winter wheat 90; oilseed 120; spring barley 60; spring wheat 120; grass ley 90+70; *clover-grass ley 0-160N3 (60-240 kgN/ha)
Applied to crop: All cropsRate varies for different crops: spring oats 120; winter wheat 135; oilseed 180; spring barley 60; spring wheat 180; grass ley 135+105; *clover-grass ley 0-240
- Measurements
Variable Material Units Frequency Scale Comment yield components Not specified soil organic matter Not specified
Related publications
- Long Continued Agricultural Soil Experiments: A Nordic Research Platform - An Overview May 2008 https://pure.au.dk/portal/files/1377607/djfma136.pdf [In English]
- Long Continued Agricultural Soil Experiments: A Nordic Research Platform - A Catalogue May 2008, p 92 https://pure.au.dk/ws/files/1380387/intrma16.pdf [In English]
- Weed flora and the relative importance of site, crop, crop rotation, and nitrogen. Andersson, T., & Milberg, P. (1998). Weed Science, 46(1), 30-38. https://doi.org/10.1017/S0043174500090135 [In English]
- Long-term effects of crop rotations with and without perennial leys on soil carbon stocks and grain yields of winter wheat (2008) Persson, T. et al. Nutrient Cycling in Agroecosystemsyst 81: 193-202 https://doi.org/10.1007/s10705-007-9144-0 [In English]