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Norberg, S
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Authors
Norberg, S
Fransen, S
Harrison, J
Llewellyn, D
Whitefield, L
Norberg, S
Brown, B
Shock, C
Ross, A
Hayes, P
Rey, J
Norberg, S
Mackey, E
Fransen, S
Harrison, J
Llewellyn, D
Whitefield, L
Norberg, S
Llewellyn, D
Driver, J.P
Fransen, S
Harrison, J
Topics
Nutrient Management of Agronomic Crops
4R's for N, P, K, S
Type
Oral
Poster
Year
2021
2009
2019
2023
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Authors

Filter results4 paper(s) found.

1. Phosphorus and Potassium How Low Can You Go In Alfalfa?

Tissues testing whole alfalfa plants at harvest can more accurately direct nutrient decisions. Developing critical nutrient levels in-season improves recommendations and applications, saving producers time, expense and effort since many growers take samples for hay quality. These three experiments were designed as follows: 1) Phosphorus (P) Rate study with differing rates of P2O5 using monoammonium phosphate (MAP); including: 0, 30, 60, 120, 240 lb P2O5... S. Norberg, S. Fransen, J. Harrison, D. Llewellyn, L. Whitefield

2. Developing Practical Phosphorus and Potassium Tissue Test Recommendations and Utilizing Struvite in Modern Alfalfa Systems

Tissue testing whole alfalfa plants at harvest provides opportunities to direct nutrient decision making more accurately. Critical levels developed allow in- season recommendations and applications and would save producers time and effort since growers are already taking samples for hay quality. Three experiments were designed including: P Study with differing rates of P2O5 using monoammonium phosphate (MAP); including: 0, 30, 60, 120, 240 lbs./acre on an 8.1 ppm P soil (Olson P method);... S. Norberg, E. Mackey, S. Fransen, J. Harrison, D. Llewellyn, L. Whitefield

3. Waxy Barley: N Applications for Yield, Beta-glucan, and Protein

Nitrogen fertilizer (N) management was evaluated for growing irrigated waxy barley for higher protein and beta-glucan soluble fiber content. A local company has proposed the building of a barley fractionation plant to capitalize on these value-added traits. Salute and Merlin, two spring waxy barley cultivars, were fall-planted to compare yield and quality under different N treatments applied in late winter and at heading and to evaluate ethephon to reduce lodging. Fairly normal winter weather... S. Norberg, B. Brown, C. Shock, A. Ross, P. Hayes, J. Rey

4. Economics of Alfalfa Fertilization Under Inflated Hay and Fertilizer Prices

Knowing critical alfalfa nutrient levels in-season improves recommendations and applications, while at the same time saves producers time, expense and effort since many growers take samples for hay quality.  Inflation has doubled hay and fertilizer prices which brings into question how current fertility decisions are made. From 2019-2020 detail information on phosphorus and potassium response was conducted. Two experiments were designed as follows: 1) Phosphorus (P) rate study with differing... S. Norberg, D. Llewellyn, J.P. Driver, S. Fransen, J. Harrison