Proceedings :: Great Plains Soil Fertility

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Sarfaraz, Q

Stichler, C

Shapiro, C

Skogley, E

Cobos, C

Calderon, F

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Authors

Stewart, C

Manter, D

Delgado, J

Del Grosso, S

Calderon, F

Heckman, K

Snell, K

Cobos, C

Baath, G

Burke, J

Chatterjee, S

DeLaune, P

Lewis, K

Babcock, R

Burke, J

Cobos, C

Silva, J

Drescher, G

Roberts, T

KELLEY, J

Smartt, A

Sarfaraz, Q

RONGEY, W

Andrade Leite Mengez, G

Ramos do Prado, M

Silva, J

Drescher, G

Roberts, T

Slaton, N

Smartt, A

Sarfaraz, Q

Andrade Leite Mengez, G

Ramos do Prado, M

Drescher, G

Roberts, T

Popp, M

Slaton, N

Ramos do Prado, M

Smartt, A

Sarfaraz, Q

Andrade Leite Mengez, G

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General

Type

Oral

Poster

Year

2020

2024

2026

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Filter results6 paper(s) found.
1. Nitrogen Fertilization and Long-term No-tillage Impacts on Soil Properties and Deep Soil C Storage Under Irrigation The net soil greenhouse gas mitigation potential of conservation agricultural management practices is strongly influenced by the direction and magnitude of soil organic C (SOC) change in deep soil layers (>6”). Deep SOC is typically old, highly processed, and consists of microbial products and root exudates associated with clay and other minerals. However, it can be susceptible to decomposition and priming from the addition of new, labile organic C. We examined long-term soil C dynamics... C. Stewart, D. Manter, J. Delgado, S. Del Grosso, F. Calderon, K. Heckman, K. Snell Download paper
2. Cover Crop Termination Timing Effects on Soil and Cotton Nutrient Availability Cover crop termination timings can have large impacts on the amount of soil coverage, nutrient availability, and stored soil moisture in a system. Producers in semi-arid regions must gamble the possibility of increased soil infiltration and reduced soil water evaporation against the potential of decreased soil moisture; in the SHP, success is dependent on irrigation capacity and precipitation. Optimizing termination timings for semi-arid regions and in deficit-irrigation/dryland systems is critical... C. Cobos, G. Baath, J. Burke, S. Chatterjee, P. Delaune, K. Lewis Download paper
3. Sustainable and Resilient Cropping Systems to Mitigate Wind Erosion for the Enhancement of Human Health In the Texas High Plains, regenerative cropping practices in a predominantly conventional farming area can be used to prevent further depletion of topsoil by wind erosion. This loss of topsoil can cause a decrease in agricultural productivity and form dust storms that can be detrimental to human health causing a rise in hospitalizations of chronic lung damage, cardiovascular disorders, and diseases contracted by inhalation. Using regenerative farming practices, both the number and size of dust... K. Lewis, R. Babcock, J. Burke, C. Cobos Download paper
4. Defining Critical Tissue-Potassium Concentrations for Furrow Irrigated Corn Production Potassium (K) is a critical nutrient for adequate corn (Zea mays L.) production, and tissue testing is an essential tool to ensure adequate K nutrition. Despite the important role of K in plant physiological functions, there are no calibrated critical tissue-K concentrations (TKc) for furrow-irrigated corn in Arkansas. This study aimed to define critical TKc values to maximize corn grain yield across different growth stages. From 2022 to 2024, twelve single-site-year and four long-term... J. Silva, G. Drescher, T. Roberts, J. Kelley, A. Smartt, Q. Sarfaraz, W. Rongey, G. Andrade Leite Mengez, M. Ramos Do Prado
5. Long-term Effects of Cover Cropping and Potassium and Phosphorus Fertilization on Soil Test Results in a Row Crop Production System Potassium (K) and phosphorus (P) availability can be affected by fertilizer inputs and the use of cover crops (CC) through their effects on nutrient cycling. This study aims to evaluate the long-term effects of CC and fertilizer-P and -K applications on soil-test K (STK) and soil-test P (STP) in two long-term field-scale experiments. Field trials were established in 2017 on silt-loam soils at the Lon Mann Cotton Research Station (LMCRS) and at the Rohwer Research Station (RRS), Arkansas. Each... J. Silva, G. Drescher, T. Roberts, N. Slaton, A. Smartt, Q. Sarfaraz, G. Andrade Leite Mengez, M. Ramos Do Prado
6. Season-long Tools for Effective Potassium Management in Arkansas Cotton Production Knowledge of how accurately soil testing and plant analysis identify nutrient-deficient soils and recommend the proper fertilizer rate is important to ensure farmers are profitable. However, critical tissue-potassium (K) concentrations have not been established for modern high-yielding cotton (Gossypium hirsutum L.) cultivars currently grown across the U.S. cotton belt. Likewise, limited research has investigated the window of opportunity to correct K-deficient cotton with in-season fertilization... G. Drescher, T. Roberts, M. Popp, N. Slaton, M. Ramos Do Prado, A. Smartt, Q. Sarfaraz, G. Andrade Leite Mengez

Filter results6 paper(s) found.

1. Nitrogen Fertilization and Long-term No-tillage Impacts on Soil Properties and Deep Soil C Storage Under Irrigation

The net soil greenhouse gas mitigation potential of conservation agricultural management practices is strongly influenced by the direction and magnitude of soil organic C (SOC) change in deep soil layers (>6”). Deep SOC is typically old, highly processed, and consists of microbial products and root exudates associated with clay and other minerals. However, it can be susceptible to decomposition and priming from the addition of new, labile organic C. We examined long-term soil C dynamics... C. Stewart, D. Manter, J. Delgado, S. Del Grosso, F. Calderon, K. Heckman, K. Snell

Download paper

2. Cover Crop Termination Timing Effects on Soil and Cotton Nutrient Availability

Cover crop termination timings can have large impacts on the amount of soil coverage, nutrient availability, and stored soil moisture in a system. Producers in semi-arid regions must gamble the possibility of increased soil infiltration and reduced soil water evaporation against the potential of decreased soil moisture; in the SHP, success is dependent on irrigation capacity and precipitation. Optimizing termination timings for semi-arid regions and in deficit-irrigation/dryland systems is critical... C. Cobos, G. Baath, J. Burke, S. Chatterjee, P. Delaune, K. Lewis

Download paper

3. Sustainable and Resilient Cropping Systems to Mitigate Wind Erosion for the Enhancement of Human Health

In the Texas High Plains, regenerative cropping practices in a predominantly conventional farming area can be used to prevent further depletion of topsoil by wind erosion. This loss of topsoil can cause a decrease in agricultural productivity and form dust storms that can be detrimental to human health causing a rise in hospitalizations of chronic lung damage, cardiovascular disorders, and diseases contracted by inhalation. Using regenerative farming practices, both the number and size of dust... K. Lewis, R. Babcock, J. Burke, C. Cobos

Download paper

4. Defining Critical Tissue-Potassium Concentrations for Furrow Irrigated Corn Production

Potassium (K) is a critical nutrient for adequate corn (Zea mays L.) production, and tissue testing is an essential tool to ensure adequate K nutrition. Despite the important role of K in plant physiological functions, there are no calibrated critical tissue-K concentrations (TKc) for furrow-irrigated corn in Arkansas. This study aimed to define critical TKc values to maximize corn grain yield across different growth stages. From 2022 to 2024, twelve single-site-year and four long-term... J. Silva, G. Drescher, T. Roberts, J. Kelley, A. Smartt, Q. Sarfaraz, W. Rongey, G. Andrade Leite Mengez, M. Ramos Do Prado

5. Long-term Effects of Cover Cropping and Potassium and Phosphorus Fertilization on Soil Test Results in a Row Crop Production System

Potassium (K) and phosphorus (P) availability can be affected by fertilizer inputs and the use of cover crops (CC) through their effects on nutrient cycling. This study aims to evaluate the long-term effects of CC and fertilizer-P and -K applications on soil-test K (STK) and soil-test P (STP) in two long-term field-scale experiments. Field trials were established in 2017 on silt-loam soils at the Lon Mann Cotton Research Station (LMCRS) and at the Rohwer Research Station (RRS), Arkansas. Each... J. Silva, G. Drescher, T. Roberts, N. Slaton, A. Smartt, Q. Sarfaraz, G. Andrade Leite Mengez, M. Ramos Do Prado

6. Season-long Tools for Effective Potassium Management in Arkansas Cotton Production

Knowledge of how accurately soil testing and plant analysis identify nutrient-deficient soils and recommend the proper fertilizer rate is important to ensure farmers are profitable. However, critical tissue-potassium (K) concentrations have not been established for modern high-yielding cotton (Gossypium hirsutum L.) cultivars currently grown across the U.S. cotton belt. Likewise, limited research has investigated the window of opportunity to correct K-deficient cotton with in-season fertilization... G. Drescher, T. Roberts, M. Popp, N. Slaton, M. Ramos Do Prado, A. Smartt, Q. Sarfaraz, G. Andrade Leite Mengez