Long-term Phosphorous Experiment - Auzeville
This experiment has been added by the GLTEN Curators using existing published sources.
- Objective
- To study the effects of phosphorous treatments.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- INRA Research Center, Toulouseexperimental research station
- People
Site: Auzeville
- Type
- research station field
- Location
- Occitanie-ToulouseFrance
- Geographic location
- 43.527787, 1.501395
- Visits permitted?
- No
- Soil type
- luvisol
- Soil description
- Typic Hapludalf with silty-clay to clay texture
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? clay content 0 – 25 Centimetres 258 (204 – 302) gram per kilogram silt content 0 – 25 Centimetres 335 (288 – 382) gram per kilogram find sand content 0 – 25 Centimetres 198 (170 – 220) gram per kilogram course sand content 0 – 25 Centimetres 164 (84 – 278) gram per kilogram cation exchange capacity 0 – 25 Centimetres 15.6 (10.4 – 18) kilogram per centimole soil pH 0 – 25 Centimetres 7.79 (6.6 – 8.4) soil total carbon 0 – 25 Centimetres 9 (8.2 – 9.7) gram per kilogram total soil nitrogen 0 – 25 Centimetres 1.19 (1.01 – 1.34) gram per kilogram soil carbon to nitrogen ratio 0 – 25 Centimetres 7.6 (6.9 – 8.1) gram per gram total soil phosphorous 0 – 25 Centimetres 546 (402 – 690) milligram per kilogram plant available phosphorous 0 – 25 Centimetres 6.2 (4.4 – 9.2) milligram per kilogram - Climatic type
- temperate oceanic climate
- Climate description
- The climate is mild humid with a dry summer and most precipitation in the spring
- Climate properties
Variable Time period Value (range) Units air temperature 1969 – 2000 13.1 (8.5 – 17.9) degree Celsius precipitation 1969 – 2000 699 millimeter
Design period: Period 1 (1968—1990)
- Design Type
- Randomized complete block design
- Description
- Nitrogen applied to crops as necessary. Crops are not grown in rotation.
- Design description
- Plots measured 30 x 6m.
- Number of plots
- 16
- Number of replicates
- 4
- Number of harvests per year
- 1
- Crops
Crop Years grown wheat maize sunflower soybeans sorghum faba beans rapeseed peas - Factor
- Factor name
- Factor levels
- phosphate fertilizer exposure
P0 (0 )
no PP1 (17.5 kgP/ha)
Applied to crop: All cropsIntended to compensate on a yearly basis for the mean P removal by the cropping systemP2 (35 kgP/ha)
Applied to crop: All cropsP4 (70 kgP/ha)
Applied to crop: All crops
- Measurements
Variable Material Units Frequency Scale Comment yield trait All crops phosphorous content All crops
Design period: Design Period 2 (1991—)
- Design Type
- Randomized complete block design
- Description
- In 1991 the plots were split along their long axis to give 32 new smaller plots. P treatments were also modified
- Design description
- 15 x 6m.
- Number of plots
- 32
- Number of replicates
- 8
- Number of harvests per year
- 1
- Crops
Crop Years grown wheat maize sunflower soybeans - Factor
- Factor name
- Factor levels
- phosphate fertilizer exposure
P0 (0 )
P1 (11 kgP/ha)
P2 (22 kgP/ha)
P4 (33 kgP/ha)
Related publications
- B. Colomb, P. Debaeke, C. Jouany, J.M. Nolot. 2007, Phosphorus management in low input stockless cropping systems: Crop and soil responses to contrasting P regimes in a 36-year experiment in southern France, European Journal of Agronomy, Volume 26, Issue 2, Pages 154-165 https://doi.org/10.1016/j.eja.2006.09.004 [In English]