Data from: 42 years of no-tillage and cover cropping improved soil oxygen availability and resilience
Data files
May 18, 2024 version files 76.23 KB
Abstract
Healthy soil air-water balance is critical for crop growth. Conservation agricultural practices improve soil physical properties to influence soil oxygen availability. We evaluated the impact of 42 years of hairy vetch (HV) cover cropping (CC) and no-tillage (NT) on soil oxygen dynamics during a cotton growing season experiencing multiple intensive rain events in silt loam soil. HV and NT treatments exhibited higher growing season soil oxygen availability (p < 0.05), and experienced 3 to 4 times fewer hours of oxygen limitation (i.e., oxygen concentration <10%) as compared to no cover (NC) and conventional tillage (CT) treatments. After heavy rainfall, NT-HV treatment exhibited the highest soil oxygen availability, followed by NT-NC, CT-HV, and CT-NC treatments (p < 0.05). While CC and/or NT treatments quickly regained soil oxygen status within 24 hours after saturating rain events, CT-NC suffered from sub-optimal soil aeration until the third day post-rainfall. The combination of CC with NT practices enhanced soil oxygen availability and resilience to extreme precipitation events.
README: Title of Dataset: 42 YEARS OF NO-TILLAGE AND COVER CROPPING IMPROVED SOIL OXYGEN AVAILABILITY AND RESILIENCE
This README was generated on 2024-05-12 by Facundo Lussich, The University of Tennessee, United States.
GENERAL INFORMATION
- Author Information A. Principal Investigator Contact Information Name: Debasish Saha Institution: The University of Tennessee Address: Department of Biosystems Engineering and Soil Science, Knoxville, US Email: dsaha3@utk.edu B. Co-investigator Contact Information Name: Facundo Lussich Institution: The University of Tennessee Address: Department of Biosystems Engineering and Soil Science, Knoxville, US Email: flussich@vols.utk.edu
- Date of data collection (single date, range, approximate date) May 2023-Oct 2023:
- Geographic location of data collection: Jackson, Tennessee, United States. (35°37′22″ N, 88°50′47″ W)
- Information about funding sources that supported the collection of the data: The USDA NIFA (Award# 2021-67019-34247) funded this collection of data.
DATA-SPECIFIC INFORMATION FOR: 42 YEARS OF NO-TILLAGE AND COVER CROPPING IMPROVED SOIL OXYGEN AVAILABILITY AND RESILIENCE
- Number of variables: 5
- Number of rows: 1824
- Variable List: Date/Treatment/Replication/Soil O2(%) / Precipitations (mm)
- Missing data codes: No missing values.
- Specialized formats or other abbreviations used: O2: Oxygen, NT: No-tillage, CT: Conventional Tiallage, HV: Hairy Vetch, NC: No cover crop
- This database includes continiuons soil oxygen data at 10 cm depth under four differrent management practices during a cotton growing season in a field experiment in Jackson, Tennessee. The dataset includes daily soil oxygen (%) concentration and precipitations (mm) for that growing season. Soil oxygen sensors (SO-110 series, Apogee Instruments, Logan UT; non-condensing) were installed at a 10-cm depth in between two crop rows at the center of each plot in spring 2023. These sensors were equipped with a thermistor temperature sensor for temperature correction and a diffusion head to maintain a clear sensor opening. CR1000X data-loggers (Campbell Scientific, INC.) were used to read the oxygen and temperature measurements every 30 seconds and log the average every 30 minutes.
- Research domain: 4.1