Yawara Long-Term Fertilizer Experiment
This experiment has been added by the GLTEN Curators using existing published sources.
- Objective
- To study the effects of different fertilizers on rice production
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- National Agricultural Research Organizationresearch organisation
- People
Site: Yawara experiment site
- Type
- research station field
- Location
- NikkawaIbarakiJapan
- Geographic location
- 36.004444, 140.020278
- Visits permitted?
- No
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? total soil nitrogen (0.2 – 0.32) Percent 2001 soil total carbon (2.08 – 3.05) Percent 2001 soil carbon to nitrogen ratio (9.6 – 10.31) 2001 cation exchange capacity (20.02 – 22.7) kilogram per mole 2001 plant available phosphorous (20.02 – 22.7) milligram per kilogram 2001 soil pH (5.17 – 6.37) 2001 - Climate properties
Variable Time period Value (range) Units air temperature 13.2 degree Celsius precipitation 1186.5 millimeter
Design period: (1926—)
- Number of harvests per year
- 1
- Crop
Crop Years grown rice - Factor
- Factor name
- Factor levels
- fertilizer exposure
control exposure
No fertilizernitrogen (100 kgN/ha)
Chemical form: ammonium sulfategreen manure
Clover green manure, incorporated into the soil 1 month before transplanting.rice straw and soybean cake
Chemical form: rice straw compostIncorporated into the soil 3 weeks before transplanting.
Related publications
- Luo, Lg., Itoh, S., Zhang, Qw. et al. Leaching behavior of nitrogen in a long-term experiment on rice under different N management systems. Environ Monit Assess 177, 141–150 (2011). https://doi.org/10.1007/s10661-010-1624-z [In English]