Long-term Straw Experiment - Heihe
This experiment has been added by the GLTEN Curators using existing published sources.
- Objective
- To study the effects of straw returns under different fertilization treatments.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organizations
- People
Site: Heihe
- Type
- research station field
- Location
- HeiheHeilongjiangChina
- Geographic location
- 50.25, 127.45
- Visits permitted?
- No
- History
- Prior to the experiment the field was under crop production for at least 150 years.
- Soil type
- luvisol
- Soil description
- The soil originated from quaternary loess-like sediments. Soil texture is a clay loam.
- Soil properties
Variable Depth Value (range) Units Ref year Estimated? Baseline? clay content 33.3 Percent soil density 1.15 gram per cubic centimetre total soil nitrogen 2.23 gram per kilogram soil organic carbon 24.5 gram per kilogram total soil phosphorous 1.7 gram per kilogram plant available phosphorous 8.1 milligram per kilogram soil pH 6.1 - Climate description
- Most rainfall occurs between July and September.
- Climate properties
Variable Time period Value (range) Units precipitation 523 millimeter air temperature -0.5 degree Celsius
Design period: (1979—2010)
- Design Type
- Randomized complete block design
- Design description
- Plots measure 212 m2.
- Crops
Crop Years grown wheat soybeans - Factors
- Factor name
- Factor levels
- nitrogen fertilizer exposure
N (37.5 kgN/ha)
Chemical form: urea- phosphate fertilizer exposure
P (16.4 kgP/ha)
Chemical form: calcium bis(dihydrogenphosphate)- crop residue management process
straw returned (3 t/ha)
Average amount of straw returned. Straw was chopped to 5-15 cm lengths after harvesting.straw removed
- Factor combinations
- CK No fertilizers
- crop residue management process: straw removed
- NP
- nitrogen fertilizer exposure: Nphosphate fertilizer exposure: Pcrop residue management process: straw removed
- NPS
- nitrogen fertilizer exposure: Nphosphate fertilizer exposure: Pcrop residue management process: straw returned
- CK
- Measurement
Variable Material Units Frequency Scale Comment composition of soil Soil
Related publications
- Shi-chao WANG, Ya-wen ZHAO, Jin-zhou WANG, Ping ZHU, Xian CUI, Xiao-zeng HAN, Ming-gang XU, Chang-ai LU, The efficiency of long-term straw return to sequester organic carbon in Northeast China's cropland, Journal of Integrative Agriculture, Volume 17, Issue 2, 2018, Pages 436-448 https://doi.org/10.1016/S2095-3119(17)61739-8 [In English]