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Mineralization dynamics in fallow dryland wheat plots, Colorado

  • Section 3: Measurements of Microbial Populations and Biomass: Their Roles in Soil Processes
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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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References

  1. Coleman DC The role of faunal interactions in affecting soil processes.In Microfloral and fungal interactions in natural and agro-ecosystems (M J Mitchell, ed.). Martinus, Nijhoff, The Hague (in press).

  2. Darbyshire J F, Wheatley R E, Greaves M P and Inkson R H E 1974 A rapid micromethod for estimating bacterial and protozoan populations in soil. Rev. Ecol. Biol. Sol. 11, 465–475.

    Google Scholar 

  3. Goodell P B 1982 Soil sampling and processing for detection and quantification of nematode populations for ecological studies.In Nematodes in Soil Ecosystems. Ed. D W Freckman. pp 178–198. University of Texas Press, Austin.

    Google Scholar 

  4. Hedley M J and Stewart J W B 1982 Method to measure microbial phosphate in soils. Soil Biol. Biochem. 14, 374–385.

    Google Scholar 

  5. Jenkinson D S and Powlson D S 1976 The effects of biocidal treatments on metabolism in soil. V. A. method for measuring soil biomass. Soil Biol. Biochem. 8, 209–213.

    Google Scholar 

  6. Merchant V A and Crossley D A 1970 An inexpensive, high efficiency Tullgren extractor for soil microarthropods. J. Georgia Entomol. Soc. Vol. 5, No. 2.

  7. Olsen S R, Cole C V, Watanabe F S and Dean L A 1954 Estimation of available phosphorus in soils by extraction with sodium bicarbonate. USDA circular 939.

  8. Voroney R P and Paul E H Determination of Kc and Kn jn situ for calibration of the chloroform fumigation-incubation method. Plant and Soil (in press).

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Elliott, E.T., Horton, K., Moore, J.C. et al. Mineralization dynamics in fallow dryland wheat plots, Colorado. Plant Soil 76, 149–155 (1984). https://doi.org/10.1007/BF02205575

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  • DOI: https://doi.org/10.1007/BF02205575

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