User profiles for R. Louis Baumhardt

R.Louis Baumhardt

Research Soil Scientist, USDA-Agric.Research Service
Verified email at usda.gov
Cited by 4892

Research achievements and adoption of no-till, dryland cropping in the semi-arid US Great Plains

NC Hansen, BL Allen, RL Baumhardt, DJ Lyon - Field Crops Research, 2012 - Elsevier
The Great Plains region of the United States is an area of widespread dryland crop
production, with wheat being the dominant crop. Precipitation in the region ranges from 300 to …

Can weighing lysimeter ET represent surrounding field ET well enough to test flux station measurements of daily and sub-daily ET?

…, RC Schwartz, TA Howell, RL Baumhardt… - Advances in Water …, 2012 - Elsevier
Weighing lysimeters and neutron probes (NP) are both used to determine the change in soil
water storage needed to solve for evapotranspiration (ET) using the soil water balance …

Soil and plant water evaporation from strip‐tilled cotton: Measurement and simulation

RJ Lascano, RL Baumhardt, SK Hicks… - Agronomy …, 1994 - Wiley Online Library
It is estimated that 20% of cotton producers in the Texas High Plains use the strip tillage
practice of planting cotton (Gossypium hirsutum L.) in residues of chemically terminated winter …

Carbon‐sensitive pedotransfer functions for plant available water

…, A Bary, RL Baumhardt… - Soil Science Society …, 2022 - Wiley Online Library
Currently accepted pedotransfer functions show negligible effect of management‐induced
changes to soil organic carbon (SOC) on plant available water holding capacity (θ AWHC ), …

Factors related to dryland grain sorghum yield increases: 1939 through 1997

PW Unger, RL Baumhardt - Agronomy Journal, 1999 - Wiley Online Library
Grain yields of dryland (nonirrigated) grain sorghum [Sorghum bicolor (L.) Moench], a major
crop in the southern Great Plains, more than tripled in studies at the USDA‐ARS …

The reduction of partitioned wind and water erosion by conservation agriculture

RS Van Pelt, SX Hushmurodov, RL Baumhardt… - Catena, 2017 - Elsevier
Soil loss due to wind and water erosion degrades the soil on-site and results in environmental
problems due to deposition in off-site areas downstream and downwind of the source field…

Post-processing techniques for reducing errors in weighing lysimeter evapotranspiration (ET) datasets

…, TA Howell, KS Copeland, RL Baumhardt - Transactions of the …, 2014 - elibrary.asabe.org
In agriculture, evapotranspiration (ET) is a major consumptive use of irrigation water and
precipitation on cropland. Global interest in sustainable management of limited freshwater …

An evaluation of nitrogen indicators for soil health in long‐term agricultural experiments

…, OB Tavarez, AI Bary, RL Baumhardt… - Soil Science Society …, 2023 - Wiley Online Library
Various soil health indicators that measure a chemically defined fraction of nitrogen (N) or a
process related to N cycling have been proposed to quantify the potential to supply N to …

Calibration and validation of the SWAT model for predicting daily ET over irrigated crops in the Texas High Plains using lysimetric data

…, PH Gowda, SR Evett, RL Baumhardt… - Transactions of the …, 2016 - elibrary.asabe.org
The Soil Water Assessment Tool (SWAT) is a widely used watershed model for simulating
stream flow, overland flow, and sediment, pesticide, and bacterial loading in response to …

Energy imbalance and evapotranspiration hysteresis under an advective environment: Evidence from lysimeter, eddy covariance, and energy balance modeling

…, G Marek, JE Moorhead, RL Baumhardt… - Geophysical …, 2021 - Wiley Online Library
Surface energy imbalance problems have been underexplored especially under advective
environments. Here, we present a novel analysis of surface energy fluxes from three distinct …