The Effects of Cropping Systems and Fallow Managements on Microarthropod Populations
| Autor: | Tomomi Nakamoto, Kae Miyazawa, Makoto Yamagata, Hiroyuki Tsuji, Hiroshi Nakano |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
chemistry.chemical_classification
education.field_of_study Soil biology Population Biocide application Microarthropod lcsh:Plant culture Manure Fallow management Minimum tillage Tillage Agronomy chemistry Environmental science Plant cover Collembola Reduced tillage Organic matter lcsh:SB1-1110 Cropping system education Agronomy and Crop Science Acari |
| Zdroj: | Plant Production Science, Vol 5, Iss 3, Pp 257-265 (2002) |
| ISSN: | 1349-1008 |
| Popis: | The response of microarthropod populations to different combinations of conservational agricultural practices was investigated in two field experiments. In the first experiment, cropping systems with combinations of tillage (conventional or reduced), biocide application (conventional or reduced), and fertilization (chemical or cattle manure compost) were compared. In the second experiment, five treatments including four fallow managements that received different levels of tillage, biocide, and organic matter input from vegetation were compared. The springtail (Collembola) population was higher with less tillage, less biocide application, and more organic matter input in both experiments, and these effects were additive; there was no specific combination of practices that has an interacting effect. The mite (Acari) population was also higher under most conservational treatments, and a significant interaction effect between tillage and organic matter application was found. A large increase in the Acari population under the combination of reduced tillage and higher organic matter input suggested that beneficial effects of these practices on the Acari community could be increased by integrating these practices. There was no significant correlation between the microarthropod populations and plant cover or soil chemical/physical properties measured. Slight changes in soil environments caused by agricultural practices may affect microarthropod communities substantially even before the changes in soil properties become detectable. |
| Databáze: | OpenAIRE |
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