| Autor: |
Kulagowski, Rémy, Riggi, Laura, Chailleux, Anaïs |
| Předmět: |
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| Zdroj: |
Journal of Crop Improvement; 2016, Vol. 30 Issue 1, p65-83, 19p |
| Abstrakt: |
Agroecosystem biodiversity could provide essential services such as pest control. One approach currently used to promote ecosystem services in agricultural systems is to reduce tillage and increase plant diversity. In this study, we assessed the short-term effects of conversion from reduced tillage (RT) to direct seeding mulch-based cropping systems (DMC) on the dynamics of arthropods (detritivores and predators), and major pests (slugs and weeds). The study was conducted in two commercial fields: one cropped with sorghum (Sorghum bicolorL.) and one with maize (Zea maysL.). We found that both beneficial and detrimental groups monitored were more abundant in DMC than in RT treatment and that the dominant species differed between treatments. Because of their major role in agroecosystems by contributing to the control of weed seeds, insects, and slugs, carabid beetles (Carabidae) were investigated in greater detail, and the results showed their diversity was also higher in DMC than in RT. The dominant species found werePoecillus cupreusandPseudofonus rufipesin the maize and sorghum fields, respectively. The increase in biological control agents shortly after conversion suggested that cover crops should be considered as a pest management tool, even on a short-term scale. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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