Proceedings :: Western Nutrient Management Conference

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Messman, C.H

Maharjan, B

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Authors

Shapiro, C

Ferguson, R

Wortmann, C

Shaver, T

Krienke, B

Hergert, G

Maharjan, B

Messman, C.H

Moore, A

Topics

Environmental and Agricultural Nutrient Management

Type

Oral

Poster

Year

2017

2023

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Filter results2 paper(s) found.
1. Nebraska Nitrogen Management Present and Future University of Nebraska faculty have been refining their N rate recommendation procedure since the 1970s. At that time, they introduced a procedure for predicting soil nitrate-N availability and effect on subsequent corn N needs. In the 1990’s this procedure was refined based on 81 state wide N rate experiments. In 2003-2006 it was re-confirmed with 32 state wide irrigated corn trials. The current algorithm is the following: N need (lb/ac) = [35 + (1.2 x EY) - (8 x NO3- N ppm) - (0.14 x EY... C. Shapiro, R. Ferguson, C. Wortmann, T. Shaver, B. Krienke, G. Hergert, B. Maharjan Download paper
2. 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 collected... C.H. Messman, A. Moore Download paper

Filter results2 paper(s) found.

1. Nebraska Nitrogen Management Present and Future

University of Nebraska faculty have been refining their N rate recommendation procedure since the 1970s. At that time, they introduced a procedure for predicting soil nitrate-N availability and effect on subsequent corn N needs. In the 1990’s this procedure was refined based on 81 state wide N rate experiments. In 2003-2006 it was re-confirmed with 32 state wide irrigated corn trials. The current algorithm is the following: N need (lb/ac) = [35 + (1.2 x EY) - (8 x NO3- N ppm) - (0.14 x EY... C. Shapiro, R. Ferguson, C. Wortmann, T. Shaver, B. Krienke, G. Hergert, B. Maharjan

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2. 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 collected... C.H. Messman, A. Moore

Download paper