China LTFE Network - Zhejiang
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: Hangzhou
- Type
- research station field
- Location
- HangzhouZhejiangChina
- Geographic location
- 30.297222, 120.19
- Elevation
- 4 Metres
- Visits permitted?
- No
- Soil description
- Paddy soil with a loam texture
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? sand content 0 – 20 Centimetres 42 Percent silt content 0 – 20 Centimetres 38 Percent clay content 0 – 20 Centimetres 20 Percent soil density 0 – 20 Centimetres 1.1 gram per cubic centimetre soil pH 0 – 20 Centimetres 6.6 soil organic carbon 0 – 20 Centimetres 14.9 gram per kilogram total soil nitrogen 0 – 20 Centimetres 1.67 gram per kilogram - Climate properties
Variable Time period Value (range) Units air temperature 16.2 degree Celsius precipitation 1480 millimeter
Design period: (1990—)
- Design description
- The experiments have a single block with treatments randomized within it. Experiments are unreplicated. Plots measure 200 m2. The experiment uses a double cropping of a barley-rice-rice rotation with three crops per year.
- Number of harvests per year
- 3
- Crops
Crop Years grown barley rice - Factors
- Factor name
- Factor levels
- nitrogen fertilizer exposure
N (105 kgN/ha)
Applied to crop: All cropsChemical form: ureaN1.5 (136 )
Applied to crop: All cropsChemical form: urea- superphosphate exposure
P (23 kgP/ha)
Applied to crop: All cropsChemical form: single superphosphateP1.5 (30 kgP/ha)
Applied to crop: All cropsChemical form: single superphosphate- potassium fertilizer exposure
K (44 kgK/ha)
Applied to crop: All cropsChemical form: potassium chlorideK1.5 (57 kgK/ha)
Applied to crop: All cropsChemical form: potassium chloride- natural fertilizer exposure
M (22.5 t/ha)
Applied to crop: All cropsChemical form: pig manureM1.5 (33.75 t/ha)
Applied to crop: All cropsChemical 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
- 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: M1.5
- 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 English]