Proceedings :: Great Plains Soil Fertility

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Holman, J.D

Donoho, T

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Authors

Simon, L.M

Obour, A.K

Holman, J.D

Schipanski, M.E

Johnson, S.K

Roozeboom, K.L

Obour, A.K

Holman, J.D

Assefa, Y.M

Simon, L.M

Mauler, P

Foster, A

Hagele, J

Donoho, T

Tollefson, D

Topics

Conservation Impacts on Soil Health

General Posters

General

Type

Oral

Poster

Year

2022

2026

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Filter results3 paper(s) found.
1. Post-Wheat Summer Cover Crop Effects Crop Yields and Soil Properties in a No-till Dryland Cropping System Traditional dryland cropping systems in the semi-arid Great Plains include long fallow periods of up to 14 months to conserve soil moisture. However, such systems are inefficient even under continuous no-till (NT) management. As less water is necessary to produce forage compared to grain, cover crops (CCs) may be successfully integrated into dryland crop rotations for increased soil cover and potentially greater income when hayed or grazed as annual forages. One study was initiated in 2016 near... L.M. Simon, A.K. Obour, J.D. Holman, M.E. Schipanski, S.K. Johnson, K.L. Roozeboom Download paper
2. Nitrogen Fertilizer Application and Depth of Moist Soil at Planting Affected Grain Sorghum Yield The depth of moist soil before planting is critical for grain crop production in intensified dryland cropping systems. We investigated depth of moist soil at planting and nitrogen (N) fertilizer application rate effects on continuous grain sorghum yields on a Crete silt loam soil over 32-years in western Kansas. Treatments were four N rates (0, 20, 40 and 60 lb ac-1) in a randomized complete blocks design with four replication and depth of moist soil at planting determined with Paul... A.K. Obour, J.D. Holman, Y.M. Assefa, L.M. Simon, P. Mauler Download paper
3. Managing High-pH Soils: Restoring Nutrient Function with Polysulphate and Acidic Phosphate Fertilizers High soil pH often reflects the active consumption of hydrogen ions (H⁺) by carbonates and bicarbonates, which suppresses calcium solubility and reduces the availability of phosphorus, potassium, and key micronutrients. These limitations are driven by soil chemistry rather than true nutrient deficiency, restricting nutrient mobility and root access. This presentation will examine Polysulphate® as a functional calcium and sulfate source that improves system efficiency. In addition, ICL... A. Foster, J. Hagele, T. Donoho, D. Tollefson

Filter results3 paper(s) found.

1. Post-Wheat Summer Cover Crop Effects Crop Yields and Soil Properties in a No-till Dryland Cropping System

Traditional dryland cropping systems in the semi-arid Great Plains include long fallow periods of up to 14 months to conserve soil moisture. However, such systems are inefficient even under continuous no-till (NT) management. As less water is necessary to produce forage compared to grain, cover crops (CCs) may be successfully integrated into dryland crop rotations for increased soil cover and potentially greater income when hayed or grazed as annual forages. One study was initiated in 2016 near... L.M. Simon, A.K. Obour, J.D. Holman, M.E. Schipanski, S.K. Johnson, K.L. Roozeboom

Download paper

2. Nitrogen Fertilizer Application and Depth of Moist Soil at Planting Affected Grain Sorghum Yield

The depth of moist soil before planting is critical for grain crop production in intensified dryland cropping systems. We investigated depth of moist soil at planting and nitrogen (N) fertilizer application rate effects on continuous grain sorghum yields on a Crete silt loam soil over 32-years in western Kansas. Treatments were four N rates (0, 20, 40 and 60 lb ac-1) in a randomized complete blocks design with four replication and depth of moist soil at planting determined with Paul... A.K. Obour, J.D. Holman, Y.M. Assefa, L.M. Simon, P. Mauler

Download paper

3. Managing High-pH Soils: Restoring Nutrient Function with Polysulphate and Acidic Phosphate Fertilizers

High soil pH often reflects the active consumption of hydrogen ions (H⁺) by carbonates and bicarbonates, which suppresses calcium solubility and reduces the availability of phosphorus, potassium, and key micronutrients. These limitations are driven by soil chemistry rather than true nutrient deficiency, restricting nutrient mobility and root access. This presentation will examine Polysulphate® as a functional calcium and sulfate source that improves system efficiency. In addition, ICL... A. Foster, J. Hagele, T. Donoho, D. Tollefson