Proceedings :: North Central Soil Fertility Conference

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33rd North Central Extension-Industry Soil Fertility Workshop

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Authors

Adee, E

Al-Kaisi, M

Anderson, A.H

Barker, D.W

Baxter, C.A

Berg, A.S

Bermudez, M

Bernards, M.L

Bly, A.G

Bollero, G.A

Bourne, J.A

Brye, K

Bullock, D.G

Bullock, D.S

Bundy, L.G

Carlson, G

Davis, J.G

Dunker, R.E

Ebelhar, S.A

Eberle, P.E

Ferdinand, L

Francis, D.D

Franzen, D.W

Freeman, K.W

Gelderman, R.H

Gerhard, E.A

Gerwing, J.R

Godsey, C

Gordon, B

Guza, A

Hart, C.D

Hodgen, P.J

Hoeft, R.G

Janssen, K

Joern, B.C

Johnson, G.V

Kaiser, D.E

Kitchen, N.R

Lamczyk, A.J

Lamond, R

Lamond, R.E

Leikam, D.F

Lentz, E.M

Lundvall, J.P

M Laboski, C.A

Makries, J.J

Mallarino, A.P

Mamo, M

Martin, K.L

Massarik, K

McCracken, J.L

Mengel, D.B

Mulla, D.J

Muthukumaran, R.B

Myers, D.B

Nafziger, E.D

Nanna, T

Norman, J

Nussbaum Wagler, D.L

Paul, L.E

Pearce, R.C

Penner, D

Raines, G.A

Randall, G.W

Raun, W.R

Rehm, G

Rice, C.W

Robertson, G.K

Robertson, G.P

Ruffo, M.L

Sawyer, J.E

Scharf, P.C

Schepers, J.S

Shanahan, J.F

Shapiro, C

Sudduth, K.A

Teal, R.K

Thelen, K.D

Tjentland, B

Varsa, E.C

Vetsch, J

Walters, D.T

Warncke, D.D

Wortmann, C.S

Wright, S.F

Wyciskalla, T.D

Xerinda, S

Topics

Type

Oral

Year

2003

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Filter results2 paper(s) found.
1. Using Historical Yield Patterns in Fields as a Management Tool to Variably Apply Nitrgen In whole field studies in southem Illinois a uniform rate of N application was compared with variably applied rates of N based upon historical crop yields for each field. The fields used were partitioned in "low". "medium", and "high" zones of productivity depending upon the normalized yield of the preceding 5 to 10 years of crops grown. Two formulas were used to variably apply nitrogen. One formula (VRN-One) calculated a N rate that favored more fertilizer in "high" productivity regions and les... Download paper
2. Utilizing Inhibitor Technology to reduce Ammonia Volatilization Losses from Urea Sources Applied to Conservation Tillage A severe limitation to urea fertilizers and the ureacomponent in livestock wastes is the high potential for volatile loss of nitrogen (N) as ammonia. Losses are especially severe when the urea-containing materials are surface applied with no or only limited subsequent incorporation. Extensive losses are also observed when urea is applied to warm soils that are moist and undergoing rapid drylng. Soil pH, the presence of an active microbial population, and soil texture are also known to impact vo... Download paper

Filter results2 paper(s) found.

1. Using Historical Yield Patterns in Fields as a Management Tool to Variably Apply Nitrgen

In whole field studies in southem Illinois a uniform rate of N application was compared with variably applied rates of N based upon historical crop yields for each field. The fields used were partitioned in "low". "medium", and "high" zones of productivity depending upon the normalized yield of the preceding 5 to 10 years of crops grown. Two formulas were used to variably apply nitrogen. One formula (VRN-One) calculated a N rate that favored more fertilizer in "high" productivity regions and les...

Download paper

2. Utilizing Inhibitor Technology to reduce Ammonia Volatilization Losses from Urea Sources Applied to Conservation Tillage

A severe limitation to urea fertilizers and the ureacomponent in livestock wastes is the high potential for volatile loss of nitrogen (N) as ammonia. Losses are especially severe when the urea-containing materials are surface applied with no or only limited subsequent incorporation. Extensive losses are also observed when urea is applied to warm soils that are moist and undergoing rapid drylng. Soil pH, the presence of an active microbial population, and soil texture are also known to impact vo...

Download paper