DOI: 10.5061/dryad.2rbnzs7x5
title: Data from: 42 years of no-tillage and cover cropping improved soil oxygen availability and resilience

description: 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 &lt; 0.05), and experienced 3 to 4 times
 fewer hours of oxygen limitation (i.e., oxygen concentration &lt;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 &lt;
 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.
description: # 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 1. 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](mailto: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](mailto:flussich@vols.utk.edu) 2. Date of data
 collection (single date, range, approximate date) May 2023-Oct 2023: 3.
 Geographic location of data collection: Jackson, Tennessee, United States.
 (35°37′22″ N, 88°50′47″ W) 4. 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 1. Number of variables: 5 2. Number of
 rows: 1824 3. Variable List: Date/Treatment/Replication/Soil O2(%) /
 Precipitations (mm) 4. Missing data codes: No missing values. 5.
 Specialized formats or other abbreviations used: O2: Oxygen, NT:
 No-tillage, CT: Conventional Tiallage, HV: Hairy Vetch, NC: No cover crop
 6. 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. 7.
 Research domain: 4.1