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Direct Seeding Mulch-based Cropping Increases Both the Activity and the Abundance of Denitrifier Communities in a Tropical Soil by Ezékiel Baudoin; Laurent Philippot; Dominique Chèneby; Lydie Chapuis-Lardy; Nathalie Fromin; David Bru; Bodovololona Rabary; Alain Brauman is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Direct Seeding Mulch-based Cropping Increases Both the Activity and the Abundance of Denitrifier Communities in a Tropical Soil about?
This study evaluated the impact of direct seeding mulch-based cropping (DMC), as an alternative to conventional tilling (CT), on a functional community involved in N cycling and emission of greenhouse gas nitrous oxide (N2O). The study was carried out for annual soybean/rice crop rotation in the Highlands of Madagascar. The differences between the two soil management strategies (direct seeding with mulched crop residues versus tillage without incorporation of crop residues) were studied along a fertilization gradient (no fertilizer, organic fertilizer, organic plus mineral fertilizers). The activity and size of the denitrifier community were determined by denitrification enzyme activity assays and by real-time PCR quantification of the denitrification genes. Denitrification activity and total C and N content in the soil were significantly increased by DMC both years, whereas the fertilization regime and sampling year (crop and mulch types, climatic conditions) had very little effect. Similar results were also observed for denitrification gene densities. Denitrification enzyme activity was more closely correlated with C content than with N content in the soil and denitrification gen
Who reads Direct Seeding Mulch-based Cropping Increases Both the Activity and the Abundance of Denitrifier Communities in a Tropical Soil?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Ezékiel Baudoin; Laurent Philippot; Dominique Chèneby; Lydie Chapuis-Lardy; Nathalie Fromin; David Bru; Bodovololona Rabary; Alain Brauman
- Publisher
- Elsevier BV
- Published
- 2009
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)