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Pan, W

Culman, S

Cook, D

Cortus, E.L

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Authors

Webb, B

Hopkins, B

Pletsch, M

Cook, D

Vickery, M

Jolley, V

Pan, W

Maaz, T

Madsen, I

Hammac, W

Reese, M

Bohl Bormann, N.L

Wilson, M.L

Cortus, E.L

Janni, K

Silverstein, K

Gunderson, L

Culman, S

Topics

Environmental and Agricultural Nutrient Management

Invited Oral Presentation

Type

Oral

Year

2009

2017

2023

2025

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Filter results4 paper(s) found.
1. Canola Roots of Water and Nitrogen Use Efficiency: New Lessons for PNW Wheat Growers The semi-arid inland Pacific Northwest (iPNW) has primarily produced wheat for 125 years due to favorable climate, soils, economics and policy drivers. Shifting drivers over the past decade related to energy, climate change, regional and global markets have created new opportunities for the integration of canola into iPNW wheat-dominated rotations. Traditional wheat grower mindsets required an agronomic reboot, forged by an understanding of canola vs. wheat physio morphology, an explosion of variety... W. Pan, T. Maaz, I. Madsen, W. Hammac, M. Reese Download paper
2. Comparing Nutrient Availability in Low Fertility Soils Using Ion Exchange Resin Capsules and Plant Bioavailability Under Greenhouse Conditions Commonly used soil resin analysis procedures have generally been developed to determine nutrient levels in agriculture soils. The purpose of the resin capsule procedure is to determine the amount of nutrient that correlates to that which is plant available. Desert soils contain lower levels of nutrients than agricultural soils, thus the validity of using resin capsules for desert soils is uncertain. In a previous incubation study it was determined that ion exchange resin capsules can be used as... B. Webb, B. Hopkins, M. Pletsch, D. Cook, M. Vickery, V. Jolley Download paper
3. ManureDB: Creating a Nationwide Manure Test Database Manure nutrients serve an important role in crop production, however compared with commercial fertilizers there is a lack of standardized information. When exact manure values are not known, manure book values have been referenced. Recent data from midwestern United States (US) labs indicates manure nutrient levels have changed from book values published by Midwest Plan Service (2004) and American Society of Agricultural and Biological Engineers (2005). Manure laboratory analysis has improved... N.L. Bohl bormann, M.L. Wilson, E.L. Cortus, K. Janni, K. Silverstein, L. Gunderson Download paper
4. Speculation on an Equation for Stratification: How Reliably Can We Estimate Soil Test Values at Different Depths? The depth to which soil is sampled in a field impacts measured soil test values. However, across the West, depth of soil sampling can vary by state, region and cropping system. What if we're interested in comparing crop responses to fertilizer application across a large scale? How do we reconcile trials that are sampled at different soil depths? This study was part of the Fertilizer Recommendation Support Tool (FRST) project, with the goal to develop equations that allowed comparison... S. Culman

Filter results4 paper(s) found.

1. Canola Roots of Water and Nitrogen Use Efficiency: New Lessons for PNW Wheat Growers

The semi-arid inland Pacific Northwest (iPNW) has primarily produced wheat for 125 years due to favorable climate, soils, economics and policy drivers. Shifting drivers over the past decade related to energy, climate change, regional and global markets have created new opportunities for the integration of canola into iPNW wheat-dominated rotations. Traditional wheat grower mindsets required an agronomic reboot, forged by an understanding of canola vs. wheat physio morphology, an explosion of variety... W. Pan, T. Maaz, I. Madsen, W. Hammac, M. Reese

Download paper

2. Comparing Nutrient Availability in Low Fertility Soils Using Ion Exchange Resin Capsules and Plant Bioavailability Under Greenhouse Conditions

Commonly used soil resin analysis procedures have generally been developed to determine nutrient levels in agriculture soils. The purpose of the resin capsule procedure is to determine the amount of nutrient that correlates to that which is plant available. Desert soils contain lower levels of nutrients than agricultural soils, thus the validity of using resin capsules for desert soils is uncertain. In a previous incubation study it was determined that ion exchange resin capsules can be used as... B. Webb, B. Hopkins, M. Pletsch, D. Cook, M. Vickery, V. Jolley

Download paper

3. ManureDB: Creating a Nationwide Manure Test Database

Manure nutrients serve an important role in crop production, however compared with commercial fertilizers there is a lack of standardized information. When exact manure values are not known, manure book values have been referenced. Recent data from midwestern United States (US) labs indicates manure nutrient levels have changed from book values published by Midwest Plan Service (2004) and American Society of Agricultural and Biological Engineers (2005). Manure laboratory analysis has improved... N.L. Bohl bormann, M.L. Wilson, E.L. Cortus, K. Janni, K. Silverstein, L. Gunderson

Download paper

4. Speculation on an Equation for Stratification: How Reliably Can We Estimate Soil Test Values at Different Depths?

The depth to which soil is sampled in a field impacts measured soil test values. However, across the West, depth of soil sampling can vary by state, region and cropping system. What if we're interested in comparing crop responses to fertilizer application across a large scale? How do we reconcile trials that are sampled at different soil depths? This study was part of the Fertilizer Recommendation Support Tool (FRST) project, with the goal to develop equations that allowed comparison... S. Culman