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Published online 1 May 2008
Published in J Environ Qual 37:944-955 (2008)
DOI: 10.2134/jeq2007.0219
© 2008 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Field Evaluation of Nitrogen Availability from Fresh and Composted Manure

Gabriela R. Muñoza, Keith A. Kellinga,*, Karen E. Rylantb and Jun Zhua

a Dep. of Soil Science, Univ. of Wisconsin-Madison, 1525 Observatory Dr., Madison, WI 53706
b formerly TVA Environmental Research Ctr., Muscle Shoals, AL


Figure 1
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  		Fig. 1. First-year whole-plant N uptake vs. actual N rate from several N sources at Arlington, WI, 1992 to 1994.

 

Figure 2
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  		Fig. 2. Second-year (residual) whole-plant N uptake vs. actual N rate applied the previous year from several N sources at Arlington, WI, 1993 to 1995.

 

Figure 3
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  		Fig. 3. Relative grain yield (RelGY) vs. soil NO3–N to 30 cm (PSNT) for all experimental plots, except 1995 residuals at Arlington, WI, 1992 to 1994.

 

Figure 4
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  		Fig. 4. Relative grain yield (RelGY) vs. soil NO3–N to 30 cm (PSNT) by N source at Arlington, WI, 1992 to 1994. The plot shows averages by treatment, but equations were fitted using all observations, and controls were included in each regression.

 




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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
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Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2008 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.