China LTFE Network - Beibei
This experiment has been added by the GLTEN Curators using existing published sources.
- Objective
- To assess the sustainability of agricultural systems including: 1. whether acceptable crop yields can be maintained over a long period, 2. the nutrient inputs required to maintain crop yields and soil reserves of nutrients 3. understand costs of nutrient losses
- Description
- This experiment is part of the China National Soil Fertility and Fertilizer Efficiency Long-term Monitor Network which aims to address problems around sustainability of agricultural systems by studying cropping systems across nine highly diverse regions of China. The experiments represent approximately 86 Mha of arable land in China and are relevant to large areas in other parts of Asia and elsewhere.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- China National Soil Fertility and Fertilizer Efficiency Long-term Monitor Networkresearch network
- People
Site: Beibei
- Type
- research station field
- Location
- BeibeiChongqingChina
- Geographic location
- 29.846944, 106.418056
- Elevation
- 266 Metres
- Visits permitted?
- No
- Soil description
- Purple soil with a loam texture
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? sand content 0 – 20 Centimetres 24.9 Percent silt content 0 – 20 Centimetres 49.7 Percent clay content 0 – 20 Centimetres 25.4 Percent soil density 0 – 20 Centimetres 1.38 gram per cubic centimetre soil pH 0 – 20 Centimetres 7.7 soil organic carbon 0 – 20 Centimetres 13.9 gram per kilogram total soil nitrogen 0 – 20 Centimetres 1.3 gram per kilogram - Climate properties
Variable Time period Value (range) Units air temperature 18.4 degree Celsius precipitation 1106 millimeter
Design period: (1990—)
- Design description
- The experiments have a single block with treatments randomized within it. Experiments are unreplicated. Plots measure 120 m2. The experiment uses a double cropping of a wheat-rice rotation with two crops per year.
- Number of harvests per year
- 2
- Crops
Crop Years grown wheat rice - Factors
- Factor name
- Factor levels
- nitrogen fertilizer exposure
N (135 kgN/ha)
Applied to crop: wheatChemical form: urea150 kg N ha-1 to riceN1.5 (202 kgN/ha)
Applied to crop: wheatChemical form: urea150 kg N ha-1 to rice- superphosphate exposure
P (26 kgP/ha)
Applied to crop: All cropsChemical form: single superphosphateP1.5 (39 kgP/ha)
Applied to crop: All cropsChemical form: single superphosphate- potassium fertilizer exposure
K (50 kgK/ha)
Applied to crop: All cropsChemical form: potassium sulphateK1.5 (75 kgK/ha)
Applied to crop: All cropsChemical form: potassium sulphate- natural fertilizer exposure
St (7.5 t/ha)
Chemical form: rice strawM (22.5 t/ha)
Chemical form: pig manureM1.5 (33.75 t/ha)
Chemical form: pig manure
- Factor combinations
- control no inputs applied
- N
- nitrogen fertilizer exposure: N
- NP
- nitrogen fertilizer exposure: Nsuperphosphate exposure: P
- NK
- nitrogen fertilizer exposure: Npotassium fertilizer exposure: K
- PK
- superphosphate exposure: Ppotassium fertilizer exposure: K
- NPK
- nitrogen fertilizer exposure: Nsuperphosphate exposure: Ppotassium fertilizer exposure: K
- NPK+M
- nitrogen fertilizer exposure: Nsuperphosphate exposure: Ppotassium fertilizer exposure: Knatural fertilizer exposure: M
- 1.5(NPK+M)
- nitrogen fertilizer exposure: N1.5superphosphate exposure: P1.5potassium fertilizer exposure: K1.5natural fertilizer exposure: -
- NPK+St
- nitrogen fertilizer exposure: Nsuperphosphate exposure: Ppotassium fertilizer exposure: Knatural fertilizer exposure: St
- M
- natural fertilizer exposure: M
- control
- Measurements
Variable Material Units Frequency Scale Comment grain yield trait All crops nitrogen content All crops phosphorous content All crops potassium content All crops
Related publications
- Zhao, B.-q., Li, X.-y., Li, X.-p., Shi, X.-j., Huang, S.-m., Wang, B.-r., Zhu, P., Yang, X.-y., Liu, H., Chen, Y., Poulton, P., Powlson, D., Todd, A. and Payne, R. (2010), Long-Term Fertilizer Experiment Network in China: Crop Yields and Soil Nutrient Trends. Agron. J., 102: 216-230. https://doi.org/10.2134/agronj2009.0182 [In In English]