China LTFE Network - Wulumuqi

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: Wulumuqi

Type
research station field
Location
Wulumuqi
Xinjiang
China
Geographic location
43.973056, 87.432778
+−
© OpenStreetMap contributors
Elevation
553 Metres
Visits permitted?
No
Soil description
Grey desert soil with a silt loam texture
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
sand content0 – 20 Centimetres18.5 Percent
silt content0 – 20 Centimetres53.2 Percent
clay content0 – 20 Centimetres28.3 Percent
soil density0 – 20 Centimetres1.25 gram per cubic centimetre
soil pH0 – 20 Centimetres8.1
soil organic carbon0 – 20 Centimetres8.1 gram per kilogram
total soil nitrogen0 – 20 Centimetres0.87 gram per kilogram
Climate properties
VariableTime periodValue (range)Units
air temperature7.4 degree Celsius
precipitation247 millimeter

Design period: (1990—)

Design description
The experiments have a single block with treatments randomized within it. Experiments are unreplicated. Plots measure 468 m2. The experiment alternates wheat and maize each year
Number of harvests per year
1
Crops
CropYears grown
wheat
maize
Factors
Factor name
Factor levels
nitrogen fertilizer exposure
N  (242 kgN/ha)
Applied to crop: All crops
Chemical form: urea
Amounts of N applied in combination with straw and manure are 217 and 85 kg N ha-1
N1.5  (152 kgN/ha)
Applied to crop: All crops
Chemical form: urea
Applied in combination with manure to give 512 kg N ha-1.
phosphate fertilizer exposure
P  (60 kgP/ha)
Applied to crop: All crops
Chemical form: single superphosphate
Amounts of P applied in combination with straw and manure are 51 and 22 kg P ha-1
P1.5  (39 kgP/ha)
Applied to crop: All crops
Chemical form: single superphosphate
Applied in combination with manure to give 137 kg P ha-1.
potassium fertilizer exposure
K  (47 kgK/ha)
Applied to crop: All crops
Chemical form: potassium chloride
Amounts of K applied in combination with straw and manure are 9 and 39 kg P ha-1
K1.5  (14 kgK/ha)
Applied to crop: All crops
Chemical form: potassium chloride
Applied in combination with manure to give 244 kg P ha-1.
natural fertilizer exposure
M  (30 t/ha)
Applied to crop: All crops
Chemical form: sheep manure
M1.5  (45 t/ha)
Applied to crop: All crops
Chemical form: sheep manure
St
Applied to crop: All crops
Chemical form: straw
All straw residue from the plots is returned
Factor combinations
Control
no inputs added
N
nitrogen fertilizer exposure: N
NP
nitrogen fertilizer exposure: N
phosphate fertilizer exposure: P
NK
nitrogen fertilizer exposure: N
potassium fertilizer exposure: K
PK
phosphate fertilizer exposure: P
potassium fertilizer exposure: K
NPK
nitrogen fertilizer exposure: N
phosphate fertilizer exposure: P
potassium fertilizer exposure: K
NPK+M
nitrogen fertilizer exposure: N
phosphate fertilizer exposure: P
potassium fertilizer exposure: K
natural fertilizer exposure: M
1.5(NPK+M)
nitrogen fertilizer exposure: N1.5
phosphate fertilizer exposure: P1.5
potassium fertilizer exposure: K1.5
natural fertilizer exposure: M1.5
NPK+St
nitrogen fertilizer exposure: N
phosphate fertilizer exposure: P
potassium fertilizer exposure: K
natural fertilizer exposure: St
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.