Download the Conference Proceedings

 
Get your copy of the 2023 Western Nutrient Management Conference Proceedings today! Download the PDF file and view all of the available proceedings.
WNMC Proceedings - March 2023.pdf

Proceedings

Find matching any: Reset
Environmental and Agricultural Nutrient Management
Add filter to result:
Authors
Adeyemi, O
Andersen, N
Barnes, M
Barrios Masias, F
Bevan, J
Bjorneberg, D
Bohl Bormann, N.L
Boren, D
Boren, D
Brooks, E
Bugbee, B
Cahn, M
Chen, L
Cortus, E.L
Creech, E
Farnisa, M
Findlay, R
Findlay, R
Flint, E.A
Geisseler, D
Geisseler, D
Gunderson, L
Hines, S
Hong, Z
Hopkins, B
Hopkins, B
Hopkins, B
Hopkins, B.G
Hopkins, B.G
Hopkins, T.J
Ioannou, J.D
Janni, K
Johnson, L
Kruger, K
Loomis, G
Lundy, M
Marshall, J
Mathesius, K
Melton, F
Messman, C.H
Miller, G
Moore, A
Nelson, T
Nouwakpo, K
Packham, J
Pandey, J
Philpott, S
Robison, C
Sagers, J
Sagers, J
Sannar, L.K
Savidge, M
Schott, L
Schott, L.R
Schroeder, K
Seely, C
Silverstein, K
Smith, R
Solomon, J
Spackman, J
Spackman, J
Sullivan, T
Sullivan, T
Tao, H
Willmore, C
Wilson, M.L
Yost, M
Yost, M
Yost, M
de Haro Marti, M
Topics
Environmental and Agricultural Nutrient Management
Type
Poster
Oral
Year
2023
Home » Topics » Results

Topics

Filter results19 paper(s) found.

1. Nitrogen Availability from Organic Amendments

Organic fertilizers and composts are valuable sources of nutrients. However, their nutrient availability is often not known and can be variable. How much nitrogen (N) becomes plant available depends on environmental factors, including temperature and so moisture, as well as the properties of the decomposing organic material. We investigated the effects of the carbon to N (C:N) ratio of different commercially available organic fertilizers and composts in a study where we mixed the materials wi... D. Geisseler

2. Barley Yield and Protein Response to Nitrogen and Sulfur Rates and Application Timing

The introduction of new barley varieties, as well as changes in management practices, necessitate a re-evaluation of nitrogen (N) and sulfur (S) nutrient management guidelines. Nitrogen has a significant impact on barley grain quality and yield. Overapplication of N can result in lodging, groundwater pollution, and high protein content, resulting in lower end-use quality of barley, while underapplication of N results in reduced grain quality and yield. Sulfur promotes N utilization in barley ... O. Adeyemi, J. Spackman, J. Sagers, J. Marshall, Z. Hong, R. Findlay, J. Bevan

3. Soil Health in American Sports Fields and Golf Courses

Healthy soils are essential for sustaining the world’s ecosystems and maintaining human lifestyles. The adoption of biological, chemical, and physical analyses to assess soil health is a relatively new concept with a paucity of scientific work assessing how well these tests can predict and influence soil health. Golf and sports turf are arguably the most intensively managed soil systems in the world, including fertilizer and pesticide use. Excess fertilizer and pesticide application can... M. Barnes, B.G. Hopkins

4. Sus-Terra Enhanced Efficiency Phosphorus Fertilizer on Potato Grown in Calcareous Soil

Potato (Solanum tuberosum L.) has a relatively high demand for phosphorus (P), especially on calcareous soil where the availability of P in hindered by poor solubility. Sus-Terra is claimed to be an enhanced efficiency fertilizer compared to other P sources. The objective of this trial was to evaluate the differences in uptake efficiency and yield for multiple P sources compared to a no P control applied to Russet Burbank potato. Field trials with six replications in a RCBD were... L.K. Sannar, B.G. Hopkins, T.J. Hopkins

5. Optimizing Nitrogen Fertilizer Rates for Annual Cereal Forage Production

Nitrogen fertilizer provides one of the greatest returns on investment but also one of the highest operating expenses for annual cereal forage production. It is important to know the total nitrogen required by a crop to optimize yield and quality and to minimize nitrogen losses to the environment. It is also possible that annual cereal forage species and cultivars will have varying responses to nitrogen availability. The objective of this study was to determine the optimal nitrogen fertilizer... J. Spackman, R. Findlay, J. Sagers, J. Pandey

6. Polymer Coated Urea: Microplastics in the Urban Landscape

Polymer Coated Urea (PCU) in urban landscapes has recently become a controversial practice as some fear the repercussions of the polymer coatings left behind in soils and the environment to potentially be detrimental to land and water ecosystem health. The use of PCU has been beneficial in effectively supplying nitrogen (N) to plants with less leaching, denitrification, and volatilization losses to the environment. However, the pollution of microplastics may outweigh these benefits. The ... C. Seely , B. Hopkins

7. A Single Nutrient Source Hydroponic Solution: pH Buffering

MES (2-[N-morpholino]ethanesulfonic acid) is a biological buffer that can be used to stabilize pH in a hydroponic system. It can, however, be toxic to plants, including soybeans. Hydroponic systems are efficient for studying plant nutrition. It is often desirable to adjust individual nutrients for unique species’ needs and/or to create multiple nutrient deficiencies within the same study. However, this is challenging to do with traditional solutions as nutrients are ... J.D. Ioannou, B. Hopkins

8. Biosolids-based Fertilizers as a Nitrogen Source in California Small Grains Systems

Situation/ conditions In response to regulatory and economic pressure, California growers are becoming more familiar with nitrogen budgets. In addition to seeking out ways to improve nitrogen management strategies, growers can possibly benefit by incorporating alternative sources of nitrogen to feed their crops. Liquid injected or pelletized biosolids-based fertilizers from local waste streams and processing facilities are one source that growers are beginning to explore. ... K. Mathesius, D. Geisseler, M. Savidge, M. Lundy, T. Nelson, N. Andersen

9. Alfalfa Fertility Survey of Oregon, Washington, and Idaho

Understanding alfalfa nutrient status in plants and soils allows researchers and growers identify the greatest nutrient needs for this important crop. A survey of PNW alfalfa fields is being conducted to accurately summarize alfalfa nutrient uptake and biomass yield potential in response to soil agronomic properties to address this question. Forty alfalfa fields throughout alfalfa production regions in Oregon, Washington, and Idaho were selected for the 2022 survey. The number of fields colle... C.H. Messman, A. Moore

10. Impact of Variable-Rate Nitrogen on Potato Yield, Quality, and Profit

Nitrogen application in agriculture is a vital process for optimal plant growth and yield outcomes. Factors such as: topography, soil properties, historical yield, and crop stress variably affect nitrogen (N) needs within a field. Applying variable N within a field could improve yields and nitrogen use efficiency (NUE). Optimal N management is a system that involves applying a conservative variable base rate at or shortly after planting followed by in-season assessment and, if needed, variabl... E.A. Flint, M. Yost, B. Hopkins

Showing 1 to 10 of 19 entries