Proceedings :: North Central Soil Fertility Conference

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Russelle, M.P

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Authors

Yost, M.A

Russelle, M.P

Coulter, J.A

Sheaffer, C.C

Kaiser, D.E

Yost, M.A

Russelle, M.P

Coulter, J.A

Yost, M.A

Russelle, M.P

Coulter, J.A

Bolstad, P.V

Jenks, A.C

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Type

Oral

Year

2011

2012

2013

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Filter results3 paper(s) found.
1. Predicting Fertilizer Nitrogen Response In Corn Following Alfalfa Correct prediction and application of alfalfa N credits to first-year corn can reduce fertilizer N costs for growers, reduce over-application of N, and reduce the potential for water contamination. For decades, researchers have found that first-year corn following alfalfa often requires no fertilizer N to maximize grain yield. However, a review and analysis of nearly all the research on this topic in North America and Spain (442 site-years of research) indicates that corn following alfalfa can respond... Download paper
2. Geographic Trends in Alfalfa Stand Age and Crops that Follow Alfalfa To gain perspective on alfalfa-annual crop rotations in the upper Midwest, USDA-National Agricultural Statistics Service cropland data layers and Soil Survey Geographic Database layers were combined for six states (North Dakota, South Dakota, Nebraska, Minnesota, Iowa, and Wisconsin) and seven years (2006-2012). Soil texture and geographic location both significantly affected the length of the alfalfa phase (stand age), and alfalfa stand age, soil texture, and year all significantly affected the... Download paper
3. Validating Potassium Fertilizer Guidelines in Alfalfa-corn Rotations In 2008 to 2010, on-farm research was conducted on 10 fields with medium soil test K (STK) to validate Minnesota K fertilizer guidelines by determining the effect of K fertilizer applications on alfalfa yield and quality in its last production year, and estimating the carryover of excess fertilizer K to first-year corn. We were surprised to find that no K fertilizer was needed to maximize alfalfa yield or overall forage feed value and quality. Luxury consumption of K occurred because as K application... Download paper

Filter results3 paper(s) found.

1. Predicting Fertilizer Nitrogen Response In Corn Following Alfalfa

Correct prediction and application of alfalfa N credits to first-year corn can reduce fertilizer N costs for growers, reduce over-application of N, and reduce the potential for water contamination. For decades, researchers have found that first-year corn following alfalfa often requires no fertilizer N to maximize grain yield. However, a review and analysis of nearly all the research on this topic in North America and Spain (442 site-years of research) indicates that corn following alfalfa can respond...

Download paper

2. Geographic Trends in Alfalfa Stand Age and Crops that Follow Alfalfa

To gain perspective on alfalfa-annual crop rotations in the upper Midwest, USDA-National Agricultural Statistics Service cropland data layers and Soil Survey Geographic Database layers were combined for six states (North Dakota, South Dakota, Nebraska, Minnesota, Iowa, and Wisconsin) and seven years (2006-2012). Soil texture and geographic location both significantly affected the length of the alfalfa phase (stand age), and alfalfa stand age, soil texture, and year all significantly affected the...

Download paper

3. Validating Potassium Fertilizer Guidelines in Alfalfa-corn Rotations

In 2008 to 2010, on-farm research was conducted on 10 fields with medium soil test K (STK) to validate Minnesota K fertilizer guidelines by determining the effect of K fertilizer applications on alfalfa yield and quality in its last production year, and estimating the carryover of excess fertilizer K to first-year corn. We were surprised to find that no K fertilizer was needed to maximize alfalfa yield or overall forage feed value and quality. Luxury consumption of K occurred because as K application...

Download paper