| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
USDA-ARS, New England Plant, Soil, & Water Laboratory, University of Maine, Orono, ME 04469
*Corresponding author (honeycutt{at}maine.edu).
ABSTRACT
Accurate prediction of N mineralization under field conditions would promote optimal N-use efficiency from both organic and inorganic sources. This study was conducted to assess the utility of microplot cylinders with mixed-bed exchange resins for monitoring field N mineralization, to compare laboratory predictions with field measurements of N mineralization, and to determine the impact of using ground (
1 mm) crop residues in the laboratory to predict N mineralization of unground (25 mm) residues in the field. Nitrogen mineralization from soil organic matter and hairy vetch (Vicia villosa Roth) residues was followed in the laboratory at 15, 20, and 25 °C with 0, 2150, 4300, and 6450 kg vetch ha-1 equivalent loading rates of 1 mm particle-size residue. Ground and unground residues were added to microplot cylinders at loading rates equivalent to 0, 4028, and 5010 kg vetch ha-1 and installed in potato (Solanum tuberosum L. Norwis) crop rows in two growing seasons. Nitrogen mineralization from soil organic matter under field conditions was overestimated by laboratory predictions; however, field measurements of N mineralization from both ground and unground vetch residues were closely predicted by a complementary laboratory study. These data indicate vetch residue N mineralization under these modified field conditions (i.e., microplot cylinders) can be predicted from laboratory studies that use ground residues, constant temperatures, and variable residue quantities. This finding may advance our ability to model and account for residue N mineralization when developing N management recommendations.
Received for publication November 8, 1996.
This article has been cited by other articles:
|
|
 |
|
  E. B. Mallory and T. S. Griffin Impacts of Soil Amendment History on Nitrogen Availability from Manure and Fertilizer Soil Sci. Soc. Am. J., May 16, 2007; 71(3): 964 - 973. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Agehara and D. D. Warncke Soil Moisture and Temperature Effects on Nitrogen Release from Organic Nitrogen Sources Soil Sci. Soc. Am. J., September 29, 2005; 69(6): 1844 - 1855. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. S. Dharmakeerthi, B. D. Kay, and E. G. Beauchamp Factors Contributing to Changes in Plant Available Nitrogen across a Variable Landscape Soil Sci. Soc. Am. J., March 1, 2005; 69(2): 453 - 462. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. A. Hanselman, D. A. Graetz, and T. A. Obreza A Comparison of In Situ Methods for Measuring Net Nitrogen Mineralization Rates of Organic Soil Amendments J. Environ. Qual., May 1, 2004; 33(3): 1098 - 1105. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. L. Ruffo and G. A. Bollero Modeling Rye and Hairy Vetch Residue Decomposition as a Function of Degree-Days and Decomposition-Days Agron. J., July 1, 2003; 95(4): 900 - 907. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. S. Burgess, G. R. Mehuys, and C. A. Madramootoo Nitrogen Dynamics of Decomposing Corn Residue Components Under Three Tillage Systems Soil Sci. Soc. Am. J., July 1, 2002; 66(4): 1350 - 1358. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. M. Rowell, C. E. Prescott, and C. M. Preston Decomposition and Nitrogen Mineralization from Biosolids and Other Organic Materials: Relationship with Initial Chemistry J. Environ. Qual., July 1, 2001; 30(4): 1401 - 1410. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. Eghball Nitrogen Mineralization from Field-Applied Beef Cattle Feedlot Manure or Compost Soil Sci. Soc. Am. J., November 1, 2000; 64(6): 2024 - 2030. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Vadose Zone Journal | Journal of Plant Registrations | ||||
| Journal of Natural Resources and Life Sciences Education |
Journal of Environmental Quality |
||||
