E
Ernst Witter
Researcher at Swedish University of Agricultural Sciences
Publications - 27
Citations - 5567
Ernst Witter is an academic researcher from Swedish University of Agricultural Sciences. The author has contributed to research in topics: Soil water & Soil organic matter. The author has an hindex of 20, co-authored 27 publications receiving 5164 citations. Previous affiliations of Ernst Witter include International Center for Tropical Agriculture.
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Toxicity of heavy metals to microorganisms and microbial processes in agricultural soils: a review.
TL;DR: In this article, a hypothesis is formulated to explain how microorganisms may become affected by gradually increasing soil metal concentrations and this is discussed in relation to defining safe or critical soil metal loadings for soil protection.
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Conservation agriculture and smallholder farming in Africa: The heretics' view
Ken E. Giller,Ken E. Giller,Ernst Witter,Marc Corbeels,Marc Corbeels,Pablo Tittonell,Pablo Tittonell +6 more
TL;DR: Conservation agriculture is claimed to be a panacea for the problems of poor agricultural productivity and soil degradation in sub-Saharan Africa (SSA). It is actively promoted by international research and development organisations, with such strong advocacy that critical debate is stifled as mentioned in this paper.
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Heavy metals and soil microbes
TL;DR: There have been many advances in the ecotoxicological assessment of metals and their effects on soil organisms but major gaps in knowledge and theory remain with regard to how microorganisms are exposed and respond to metals in soils.
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Element balances as a tool for sustainable nutrient management: a critical appraisal of their merits and limitations within an agronomic and environmental context
Ingrid Öborn,Anthony C. Edwards,Ernst Witter,Oene Oenema,K Ivarsson,Paul J. A. Withers,S.I Nilsson,A Richert Stinzing +7 more
TL;DR: It is difficult to establish straightforward relationships between nutrient management, surplus, losses and environmental impact, and agronomic and environmental reference or target values need to be established for different production systems, geographical areas and elements.
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Sources of C and N contributing to the flush in mineralization upon freeze–thaw cycles in soils
Anke M. Herrmann,Ernst Witter +1 more
TL;DR: In this paper, the authors investigated the contribution of microbial biomass C to the C flush upon freeze-thaw cycles (FTC) in mid-latitude climatic regions.