Although the global nitrogen (N) cycle is largely driven by soil microbes, plant root exudates
can profoundly modify soil microbial communities and influence their N transformations. A …

A broad and diversified group of compounds, secondary metabolites, are known to govern
species interactions in ecosystems. Recent studies have shown that secondary metabolites …

Box 9E. 1 Continued FIGURE 2. The C–S–R triangle model (Grime 1979). The strategies at
the three corners are C, competiti-winning species; S, stress-tolerating s-cies; R …

In this chapter, a biochar classifi cation system related to its use as a soil amendment is
proposed. This document builds upon previous work: Standardized product defi nition and …

Nitrification in acid soils was first reported in the beginning of the 20th century. Although this
finding has been well substantiated by countless studies since then, it has until recently …

Nitrification is the microbial conversion of reduced forms of nitrogen (N) to nitrate (NO3−),
and in fertilized soils it can lead to substantial N losses via NO3− leaching or nitrous oxide …

Nitrification, a microbial process, is a key component and integral part of the nitrogen (N)
cycle. Soil N is in a constant state of flux, moving and changing chemical forms. During …

Soils may act as sources or sinks of volatile organic compounds (VOCs). Many of the formed
VOCs are produced by microorganisms, and it would be a challenge to investigate soil …

Plants produce and release in the surrounding soil, the so-called rhizosphere, a vast variety
of secondary metabolites. Among them, flavonoids are the most studied, mainly for their role …

Nitrification, the biological oxidation of ammonium to nitrate, weakens the soil's ability to
retain N and facilitates N-losses from production agriculture through nitrate-leaching and …