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 Network
research network
People

Site: Hangzhou

Type
research station field
Location
Hangzhou
Zhejiang
China
Geographic location
30.297222, 120.19
© OpenStreetMap contributors
Elevation
4 Metres
Visits permitted?
No
Soil description
Paddy soil with a loam texture
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
sand content0 – 20 Centimetres42 Percent
silt content0 – 20 Centimetres38 Percent
clay content0 – 20 Centimetres20 Percent
soil density0 – 20 Centimetres1.1 gram per cubic centimetre
soil pH0 – 20 Centimetres6.6
soil organic carbon0 – 20 Centimetres14.9 gram per kilogram
total soil nitrogen0 – 20 Centimetres1.67 gram per kilogram
Climate properties
VariableTime periodValue (range)Units
air temperature16.2 degree Celsius
precipitation1480 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
CropYears grown
barley
rice
Factors
Factor name
Factor levels
nitrogen fertilizer exposure
N  (105 kgN/ha)
Applied to crop: All crops
Chemical form: urea
N1.5  (136 )
Applied to crop: All crops
Chemical form: urea
superphosphate exposure
P  (23 kgP/ha)
Applied to crop: All crops
Chemical form: single superphosphate
P1.5  (30 kgP/ha)
Applied to crop: All crops
Chemical form: single superphosphate
potassium fertilizer exposure
K  (44 kgK/ha)
Applied to crop: All crops
Chemical form: potassium chloride
K1.5  (57 kgK/ha)
Applied to crop: All crops
Chemical form: potassium chloride
natural fertilizer exposure
M  (22.5 t/ha)
Applied to crop: All crops
Chemical form: pig manure
M1.5  (33.75 t/ha)
Applied to crop: All crops
Chemical form: pig manure
Factor combinations
control
no inputs applied
N
nitrogen fertilizer exposure: N
NP
nitrogen fertilizer exposure: N
superphosphate exposure: P
NK
nitrogen fertilizer exposure: N
potassium fertilizer exposure: K
NPK
nitrogen fertilizer exposure: N
superphosphate exposure: P
potassium fertilizer exposure: K
NPK+M
nitrogen fertilizer exposure: N
superphosphate exposure: P
potassium fertilizer exposure: K
natural fertilizer exposure: M
1.5(NPK+M)
nitrogen fertilizer exposure: N1.5
superphosphate exposure: P1.5
potassium fertilizer exposure: K1.5
natural fertilizer exposure: M1.5
M
natural fertilizer exposure: M
Measurements
VariableMaterialUnitsFrequencyScaleComment
grain yield traitAll crops
nitrogen contentAll crops
phosphorous contentAll crops
potassium contentAll 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.