Ken E. Giller

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.

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.

TL;DR: Tropical environments - climates, soils and cropping systems nitrogen fixing organisms in the tropics nitrogen fixation process and its role in the tropical crops and Cropping systems - cereal crops and grasses, wetland rice, grain legumes, legumes as animal fodder, plantation crops, agroforestry optimizing contributions from nitrogen fixation as discussed by the authors.

TL;DR: Pathways and processes in decomposition foraging, feeding and feedback manipulation of plant litter quality synchrony and soil organic matter - theory into practice?

TL;DR: In this paper, the authors identify two major yield gaps: (1) the gap between actual yields (YA) and the water-limited yield potential (Yw), which is the maximum yield achievable under rainfed conditions without irrigation if soil water capture and storage is optimal and nutrient constraints are released, and (2) The gap between YA, and a locally attainable yield (YL) which corresponds to the water and nutrient-limited yields that can be measured in the most productive fields of resource endowed farmers in a community.