Book ChapterDOI
Conservation agriculture, improving soil quality for sustainable production systems?
Nele Verhulst,Bram Govaerts,Els Verachtert,A. Castellanos-Navarrete,Monica Mezzalama,Patrick C. Wall,A. Chocobar,Jozef Deckers,Ken D. Sayre +8 more
- pp 137-208
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TLDR
In this article, a comparative soil quality evaluation is performed in which the performance of the system is determined in relation to alternatives, and the results show that the effect of a reduction in tillage on the variation in total porosity with depth may be related to differences in traffic on different sites, or on soil quality at the time tillage was reduced or stopped.Abstract:
Conservation agriculture has been proposed as a widely adapted set of management principles that can assure more sustainable agricultural production. Conservation agriculture removes the emphasis from the tillage component alone and addresses a more enhanced concept of the complete agricultural system. Applying conservation agriculture essentially means altering literally generations of traditional farming practices and implement use. Within the framework of agricultural production, high soil quality equates to the ability of the soil to maintain a high productivity without significant soil or environmental degradation. A comparative soil quality evaluation is one in which the performance of the system is determined in relation to alternatives. Inconsistent effects of a reduction in tillage on the variation in total porosity with depth may be related to differences in traffic on different sites, or on soil quality at the time tillage was reduced or stopped.read more
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Journal ArticleDOI
Conservation agriculture and ecosystem services: An overview
TL;DR: The potential and limitations of conservation agriculture for low productivity, small-scale farming systems in Sub Saharan Africa and South Asia is discussed in this article. But, the authors highlight some research priorities for ecosystem services in conservational agriculture.
Journal ArticleDOI
Limited potential of no-till agriculture for climate change mitigation
David S. Powlson,Clare M. Stirling,Mangi L. Jat,Bruno Gérard,Cheryl A. Palm,Pedro A. Sanchez,Kenneth G. Cassman +6 more
TL;DR: In this paper, the potential for climate change mitigation through soil carbon sequestration that is possible from a change to no-till agriculture has been widely overstated, arguing that the potential of climate adaptation through carbon sequestering is limited.
Journal ArticleDOI
When does no-till yield more? A global meta-analysis
Cameron M. Pittelkow,Bruce A. Linquist,Mark E. Lundy,X. Q. Liang,Kees Jan van Groenigen,Juhwan Lee,Natasja van Gestel,Johan Six,Rodney T. Venterea,Rodney T. Venterea,Chris van Kessel +10 more
TL;DR: The authors conducted a meta-analysis to evaluate the influence of various crop and environmental variables on no-till relative to conventional tillage yields using data obtained from peer-reviewed publications (678 studies with 6005 paired observations, representing 50 crops and 63 countries).
Journal ArticleDOI
Achieving yield gains in wheat.
Matthew P. Reynolds,John Foulkes,Robert T. Furbank,Simon Griffiths,Julie King,Erik H. Murchie,Martin A. J. Parry,Gustavo A. Slafer +7 more
TL;DR: Crop development should favour spike fertility to maximize harvest index so phenology must be tailored to different photoperiods, and sensitivity to unpredictable weather must be modulated to reduce conservative responses that reduce harvest index.
Journal ArticleDOI
Crop residue management and soil health: A systems analysis
TL;DR: In this paper, the authors reviewed crop residue management practices, mainly surface retention, incorporation or removal, describing their advantages and limitations in cereal-based agroecosystems in developing countries.
References
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Journal ArticleDOI
Effects of tillage systems on soil characteristics, glomalin and mycorrhizal propagules in a Chilean Ultisol
TL;DR: It is concluded that a less disruptive effect of NT influences positively all soil characteristics and also increases P acquisition by the following crop in the rotation system.
Journal ArticleDOI
Aggregate distribution and soil organic matter under different tillage systems for vegetable crops in a Red Latosol from Brazil
TL;DR: In this paper, the effect of three tillage systems on the stability of soil aggregates and soil organic carbon was studied in comparison to reference plots with grass and bare soil, from an experiment that has been carried out from 1995 to 2001, on a Dystrophic Red Latosol (Typic Haplorthox).
Journal ArticleDOI
Carbon sequestration in a long-term conventional versus conservation tillage experiment
William Deen,P.K Kataki +1 more
TL;DR: In this article, the organic carbon status of soils sampled at depth increments from 0 to 60 cm after 25 years of five tillage treatments in a silt loam soil was analyzed.
Journal ArticleDOI
Multivariate analyses of Burkholderia species in soil: effect of crop and land use history.
TL;DR: Although most variation in the Burkholderia community structure was observed between the permanent grassland and agricultural areas, differences between the crop rotation and maize monoculture groups were also observed.
Journal ArticleDOI
Tillage impacts on soil biological activity and aggregation in a Brazilian Cerrado Oxisol
TL;DR: In this article, the impact of tillage on soil biological activity and aggregate stability in an Oxisol typical to the Cerrado region of Brazil was examined, and three different tillage practices were compared: no-till, disk harrow, and disk plow in the 0-5 cm layer.