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Research paper thumbnail of Assessing the Effects of a Winter Wheat Cover Crop on Soil Water Use, Cotton Yield, and Soil Organic Carbon in No-Till Cotton Production Systems

Journal of the ASABE

HighlightsSoil water depleted by the cover crop was quickly replenished by spring precipitation.H... more HighlightsSoil water depleted by the cover crop was quickly replenished by spring precipitation.Higher soil water was maintained during the cotton growing season under the cover crop treatment.Cover crops improved soil organic carbon under both irrigated and dryland conditions.Cover crops enhanced crop water productivity under both irrigated and dryland conditions.. Cover crops provide many soil health benefits to agricultural systems. An interest in growing cover crops in cotton (Gossypium hirsutum L.) production systems has been increasing in the Texas Rolling Plains (TRP) region. Due to limited rainfall and groundwater availability, producers in this semi-arid region are concerned that winter cover crops can reduce soil water availability for a subsequent cotton crop. In addition, the long-term effects of cover crops on soil organic carbon (SOC) are not well studied in this region. The overall goal of this study was to assess the long-term effects of growing a winter wheat (Triti...

Research paper thumbnail of Performance of rice varieties under saline sodic soils of Konanki pilot area

Research paper thumbnail of Reclamation of saline and waterlogged soils in Mutluru channel command of Krishna western delta, Andhra Pradesh, India

Research paper thumbnail of Drainage and water management for salinity control in canal commands—A Comprehensive report on research achievements of Bapatla network center

Research paper thumbnail of Hydraulic performance of closed sub-surface drainage system at Konanki pilot area in NSP right canal command

Research paper thumbnail of Feasible Subsurface Drainage Strategies to Combat Water Logging and Salinity in Irrigated Agricultural Lands in Andhra Pradesh

Indo-Dutch Network …, 2003

Research paper thumbnail of Design and construction of drainage systems at Konanki and Uppugunduru

Technical Bulletin No, 2000

Research paper thumbnail of Adapting the CROPGRO Model to Simulate Growth and Yield of Spring Safflower in Semiarid Conditions

Research paper thumbnail of Evaluating the impacts of alternative grazing management practices on soil carbon sequestration and soil health indicators

Agriculture, Ecosystems & Environment

Research paper thumbnail of Simulating the climate change impacts and evaluating potential adaptation strategies for irrigated corn production in Northern High Plains of Texas

Research paper thumbnail of Simulated Dryland Cotton Yield Response to Selected Scenario Factors Associated With Soil Health

Frontiers in Sustainable Food Systems, 2021

In the Texas High Plains (THP), diminishing irrigation well-capacities, and increasing costs of e... more In the Texas High Plains (THP), diminishing irrigation well-capacities, and increasing costs of energy and equipment associated with groundwater extraction and application are contributing factors to a transition from irrigated to dryland agriculture. The primary goal of this modeling exercise was to investigate whether and to what extent hypothetical changes in factors putatively associated with soil health would affect dryland cotton (Gossypium hirsutum L.) yields. The factors selected were drainage, surface runoff, soil water holding capacity, soil organic carbon (SOC) and albedo. As a first analysis to evaluate these factors, we used the CROPGRO-Cotton module within the Decision Support System for Agrotechnology Transfer (DSSAT) cropping system model. Specifically, we evaluated the effects of reduced surface runoff, increased soil water holding capacity, and SOC, doubling of the soil albedo through stubble mulching, and of soil drainage by enhancing infiltration with no-tillage/...

Research paper thumbnail of Evaluating hydrological components and streamflow characteristics under conventional and adaptive multi‐paddock grazing management

River Research and Applications, 2022

Research paper thumbnail of The synergy between water conservation and economic profitability of adopting alternative irrigation systems for cotton production in the Texas High Plains

Agricultural Water Management, 2022

Research paper thumbnail of Modeling Basin-Scale Impacts of Cultivation Practices on Cotton Yield and Water Conservation under Various Hydroclimatic Regimes

Agriculture, 2021

The SWAT model equipped with an improved auto-irrigation function was used to assess the impacts ... more The SWAT model equipped with an improved auto-irrigation function was used to assess the impacts of cultivation practices on irrigated and dryland cotton yield and water conservation in the Texas Panhandle. Results showed the largest irrigation depth led to reductions in irrigation and crop evapotranspiration (ETc) with slightly increased cotton yields compared to the baseline scenarios under different hydroclimatic regimes. However, soil water content and surface runoff values were increased when using the largest irrigation depth. The opposite results were observed for the small irrigation depth. Early planting of cotton resulted in decreased irrigation and ETc, and increased cotton yields under both irrigated and dryland conditions, particularly in normal and wet years. By contrast, the late planting scenarios indicated the opposite for those variables. Simulated hydrologic variables were relatively stable using various maturity cultivars. Nevertheless, greater than 10% reduction...

Research paper thumbnail of Assessing the Impacts of Land Use Change from Cotton to Perennial Bioenergy Grasses on Hydrological Fluxes and Water Quality in a Semi-Arid Agricultural Watershed Using the APEX Model

Research paper thumbnail of Simulated efficient growth-stage-based deficit irrigation strategies for maximizing cotton yield, crop water productivity and net returns

Agricultural Water Management, 2021

Abstract Declining water levels in the southern Ogallala Aquifer and associated reduction in irri... more Abstract Declining water levels in the southern Ogallala Aquifer and associated reduction in irrigation capacities and increasing pumping costs necessitate adoption of deficit/limited irrigation practices for sustaining cotton production in the Texas High Plains (THP) region. The overall goal of this study was to evaluate the response of cotton crop to water stress in different growth stages and suggest efficient growth-stage-based deficit (GSBD) irrigation schedules for maximizing yield, crop water productivity (CWP) and economic returns under contrasting weather conditions using the CROPGRO-Cotton model. Five growth stages including seedling emergence/germination, squaring, early bloom/flower initiation, peak bloom, and boll opening/late bloom were considered. A combination of five irrigation scenarios (S1 through S5 with seasonal irrigation amounts of 240, 300, 360, 420 and 480 mm) and six irrigation treatments (T1 through T5: no irrigation in one of the five growth stages, and T6: irrigation applied in all five growth stages) were then simulated with a center pivot irrigation system. Skipping irrigation during the peak bloom growth stage (T4 treatment) resulted in the lowest yield, CWP and net returns under all weather conditions. The T1 irrigation treatment in which irrigation was skipped during the seedling emergence/germination stage was identified as the most efficient irrigation strategy for maximizing yield, CWP and net returns among all irrigation scenarios. Application of more than 360, 420 and 480 mm of irrigation water in wet, normal and dry years, respectively, did not significantly improve yield or net returns, and resulted in a decrease in CWP. These results imply that cotton responses to water deficit vary by growth stages, and adoption of appropriate GSBD irrigation strategies could optimize the use of limited water resources and extend the life of the southern Ogallala Aquifer.

Research paper thumbnail of Potential climate change adaptation strategies for winter wheat production in the Texas High Plains

Agricultural Water Management, 2019

Research paper thumbnail of Determining water-use-efficient irrigation strategies for cotton using the DSSAT CSM CROPGRO-cotton model evaluated with in-season data

Agricultural Water Management, 2019

Research paper thumbnail of Tillage and Nitrogen Rate Effects on Corn Production and Residual Soil Characteristics

Research paper thumbnail of Assessing the hydrologic and water quality impacts of biofuel‐induced changes in land use and management

Research paper thumbnail of Assessing the Effects of a Winter Wheat Cover Crop on Soil Water Use, Cotton Yield, and Soil Organic Carbon in No-Till Cotton Production Systems

Journal of the ASABE

HighlightsSoil water depleted by the cover crop was quickly replenished by spring precipitation.H... more HighlightsSoil water depleted by the cover crop was quickly replenished by spring precipitation.Higher soil water was maintained during the cotton growing season under the cover crop treatment.Cover crops improved soil organic carbon under both irrigated and dryland conditions.Cover crops enhanced crop water productivity under both irrigated and dryland conditions.. Cover crops provide many soil health benefits to agricultural systems. An interest in growing cover crops in cotton (Gossypium hirsutum L.) production systems has been increasing in the Texas Rolling Plains (TRP) region. Due to limited rainfall and groundwater availability, producers in this semi-arid region are concerned that winter cover crops can reduce soil water availability for a subsequent cotton crop. In addition, the long-term effects of cover crops on soil organic carbon (SOC) are not well studied in this region. The overall goal of this study was to assess the long-term effects of growing a winter wheat (Triti...

Research paper thumbnail of Performance of rice varieties under saline sodic soils of Konanki pilot area

Research paper thumbnail of Reclamation of saline and waterlogged soils in Mutluru channel command of Krishna western delta, Andhra Pradesh, India

Research paper thumbnail of Drainage and water management for salinity control in canal commands—A Comprehensive report on research achievements of Bapatla network center

Research paper thumbnail of Hydraulic performance of closed sub-surface drainage system at Konanki pilot area in NSP right canal command

Research paper thumbnail of Feasible Subsurface Drainage Strategies to Combat Water Logging and Salinity in Irrigated Agricultural Lands in Andhra Pradesh

Indo-Dutch Network …, 2003

Research paper thumbnail of Design and construction of drainage systems at Konanki and Uppugunduru

Technical Bulletin No, 2000

Research paper thumbnail of Adapting the CROPGRO Model to Simulate Growth and Yield of Spring Safflower in Semiarid Conditions

Research paper thumbnail of Evaluating the impacts of alternative grazing management practices on soil carbon sequestration and soil health indicators

Agriculture, Ecosystems & Environment

Research paper thumbnail of Simulating the climate change impacts and evaluating potential adaptation strategies for irrigated corn production in Northern High Plains of Texas

Research paper thumbnail of Simulated Dryland Cotton Yield Response to Selected Scenario Factors Associated With Soil Health

Frontiers in Sustainable Food Systems, 2021

In the Texas High Plains (THP), diminishing irrigation well-capacities, and increasing costs of e... more In the Texas High Plains (THP), diminishing irrigation well-capacities, and increasing costs of energy and equipment associated with groundwater extraction and application are contributing factors to a transition from irrigated to dryland agriculture. The primary goal of this modeling exercise was to investigate whether and to what extent hypothetical changes in factors putatively associated with soil health would affect dryland cotton (Gossypium hirsutum L.) yields. The factors selected were drainage, surface runoff, soil water holding capacity, soil organic carbon (SOC) and albedo. As a first analysis to evaluate these factors, we used the CROPGRO-Cotton module within the Decision Support System for Agrotechnology Transfer (DSSAT) cropping system model. Specifically, we evaluated the effects of reduced surface runoff, increased soil water holding capacity, and SOC, doubling of the soil albedo through stubble mulching, and of soil drainage by enhancing infiltration with no-tillage/...

Research paper thumbnail of Evaluating hydrological components and streamflow characteristics under conventional and adaptive multi‐paddock grazing management

River Research and Applications, 2022

Research paper thumbnail of The synergy between water conservation and economic profitability of adopting alternative irrigation systems for cotton production in the Texas High Plains

Agricultural Water Management, 2022

Research paper thumbnail of Modeling Basin-Scale Impacts of Cultivation Practices on Cotton Yield and Water Conservation under Various Hydroclimatic Regimes

Agriculture, 2021

The SWAT model equipped with an improved auto-irrigation function was used to assess the impacts ... more The SWAT model equipped with an improved auto-irrigation function was used to assess the impacts of cultivation practices on irrigated and dryland cotton yield and water conservation in the Texas Panhandle. Results showed the largest irrigation depth led to reductions in irrigation and crop evapotranspiration (ETc) with slightly increased cotton yields compared to the baseline scenarios under different hydroclimatic regimes. However, soil water content and surface runoff values were increased when using the largest irrigation depth. The opposite results were observed for the small irrigation depth. Early planting of cotton resulted in decreased irrigation and ETc, and increased cotton yields under both irrigated and dryland conditions, particularly in normal and wet years. By contrast, the late planting scenarios indicated the opposite for those variables. Simulated hydrologic variables were relatively stable using various maturity cultivars. Nevertheless, greater than 10% reduction...

Research paper thumbnail of Assessing the Impacts of Land Use Change from Cotton to Perennial Bioenergy Grasses on Hydrological Fluxes and Water Quality in a Semi-Arid Agricultural Watershed Using the APEX Model

Research paper thumbnail of Simulated efficient growth-stage-based deficit irrigation strategies for maximizing cotton yield, crop water productivity and net returns

Agricultural Water Management, 2021

Abstract Declining water levels in the southern Ogallala Aquifer and associated reduction in irri... more Abstract Declining water levels in the southern Ogallala Aquifer and associated reduction in irrigation capacities and increasing pumping costs necessitate adoption of deficit/limited irrigation practices for sustaining cotton production in the Texas High Plains (THP) region. The overall goal of this study was to evaluate the response of cotton crop to water stress in different growth stages and suggest efficient growth-stage-based deficit (GSBD) irrigation schedules for maximizing yield, crop water productivity (CWP) and economic returns under contrasting weather conditions using the CROPGRO-Cotton model. Five growth stages including seedling emergence/germination, squaring, early bloom/flower initiation, peak bloom, and boll opening/late bloom were considered. A combination of five irrigation scenarios (S1 through S5 with seasonal irrigation amounts of 240, 300, 360, 420 and 480 mm) and six irrigation treatments (T1 through T5: no irrigation in one of the five growth stages, and T6: irrigation applied in all five growth stages) were then simulated with a center pivot irrigation system. Skipping irrigation during the peak bloom growth stage (T4 treatment) resulted in the lowest yield, CWP and net returns under all weather conditions. The T1 irrigation treatment in which irrigation was skipped during the seedling emergence/germination stage was identified as the most efficient irrigation strategy for maximizing yield, CWP and net returns among all irrigation scenarios. Application of more than 360, 420 and 480 mm of irrigation water in wet, normal and dry years, respectively, did not significantly improve yield or net returns, and resulted in a decrease in CWP. These results imply that cotton responses to water deficit vary by growth stages, and adoption of appropriate GSBD irrigation strategies could optimize the use of limited water resources and extend the life of the southern Ogallala Aquifer.

Research paper thumbnail of Potential climate change adaptation strategies for winter wheat production in the Texas High Plains

Agricultural Water Management, 2019

Research paper thumbnail of Determining water-use-efficient irrigation strategies for cotton using the DSSAT CSM CROPGRO-cotton model evaluated with in-season data

Agricultural Water Management, 2019

Research paper thumbnail of Tillage and Nitrogen Rate Effects on Corn Production and Residual Soil Characteristics

Research paper thumbnail of Assessing the hydrologic and water quality impacts of biofuel‐induced changes in land use and management