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Folia Microbiologica

, Volume 13, Issue 4, pp 270–274 | Cite as

The effect of DD nematocide on soil micro-organisms

  • Y. Abd-el-Malek
  • M. Monib
  • M. N. Zayed
  • M. Abd-El-Nasser
Article

Abstract

The application of DD, a 1∶1 mixture of 1,3-dichloropropene and 1,2-dichloropropane, at field rate, to soil had neither stimulatory nor suppressive effects on bacteria, actinomycetes, fungi and cellulose decomposing bacteria. The toxic effect of the nematocide onAzotobacter and nitrogen-fixing clostridia was slight, the organisms recovering in a very short time. In fumigated soils the counts ofNitrosomonas andNitrobacter were markedly reduced and remained lower than the counts in the untreated soils for the 30 days duration of the experiment. The inhibitory effects of DD were to some extent influenced by soil type, being most marked in sandy and loam and least in calcareous soils.

Keywords

Rice Straw Calcareous Soil Untreated Soil Soil Fumigant Straw Compost 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Abd-el-Malek, Y., Monib, M. and Zayed, M. N.:Bacteriological and chemical studies in rice straw compost. I. Composting of rice straw at temperatures occurring under field conditions. J. Soil Sci. U.A.R. I: 51, 1961.Google Scholar
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Copyright information

© Institute of Microbiology, Academy of Sciences of the Czech Republic 1968

Authors and Affiliations

  • Y. Abd-el-Malek
    • 1
  • M. Monib
    • 1
  • M. N. Zayed
    • 1
  • M. Abd-El-Nasser
    • 1
  1. 1.Agricultural Bacteriology Department, Faculty of AgricultureCairo UniversityCairo

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