Characterization and Utilization of Nitrogen Contained in Sweet Corn Silage Waste
Vincent A. Fritza,
Gyles W. Randallb and
Carl J. Rosenc
a Univ. of Minnesota Southern Research and Outreach Center, 35838 120th Street, Waseca, MN 56093 and Dep. of Horticultural Science, Univ. of Minnesota, St. Paul, MN 55108
b Univ. of Minnesota Southern Research & Outreach Center, Waseca, MN
c Univ. of Minnesota, Dep. of Soil, Water, and Climate, St. Paul, MN 55108

View larger version (31K):
[in a new window]
|
Fig. 1. Soil NO3N in the 0- to 0.9-m profile as influenced by rate of sweet corn silage waste (SCSW) (0, 224, and 448 t ha-1) and fertilizer N (134 kg ha-1) in 1993. Vertical lines indicate the standard errors of the means
|
|

View larger version (32K):
[in a new window]
|
Fig. 2. Soil NO3N in the 0- to 0.9-m profile as influenced by rate of sweet corn silage waste (SCSW) (0, 224, and 448 t ha-1) and fertilizer N (166 kg ha-1) in 1994. Vertical lines indicate the standard errors of the means
|
|

View larger version (34K):
[in a new window]
|
Fig. 3. Soil NO3N in the 0- to 0.9-m profile as influenced by rate of sweet corn silage waste (SCSW) (0, 224, and 448 t ha-1) and fertilizer N (166 kg ha-1) in 1995. Vertical lines indicate the standard errors of the means
|
|

View larger version (16K):
[in a new window]
|
Fig. 4. Impact of sweet corn silage waste (SCSW) rate on Bray P1 soil test P (STP)
|
|

View larger version (17K):
[in a new window]
|
Fig. 5. Impact of sweet corn silage waste (SCSW) rate on soil test K (STK)
|
|

View larger version (20K):
[in a new window]
|
Fig. 6. Using the fertilizer N curve to determine N availability from sweet corn silage waste (SCSW) in the following crop growing season (1995)
|
|
Copyright © 2001 by the American Society of Agronomy.