Mineralization dynamics in fallow dryland wheat plots,Colorado |
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| Authors: | E. T. Elliott K. Horton J. C. Moore D. C. Coleman C. V. Cole |
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| Affiliation: | (1) Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, Colorado, USA;(2) Department of Agronomy, Colorado State University, Fort Collins, Colorado, USA;(3) Department of Zoology and Entomology, Colorado State University, Fort Collins, Colorado, USA;(4) USDA-ARS, Fort Collins, Colorado, USA |
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| Abstract: | Summary There was a flush of mineralization in fallow wheat plots in the wet and warm summer of 1982 at Akron, Colorado. Peak mineralization rates and concentrations of N and P coincided with a 2.5-fold increase in protozoan biomass. No-till contained considerably more activity than stubble mulch plots, especially in the surface 2.5 cm and there was more water storage in no-till on all dates. Differential management of agricultural residues and the resultant effects upon the microbial community significantly altered patterns of nutrient cycling. |
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| Keywords: | Inorganic nutrients Microbial biomass Mineralization Soil fauna Tillage practice |
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