Klaus Dittert

TL;DR: Both K- and r-strategists were beneficial for priming effects, with an increasing contribution of K-selected species under N limitation, which supports the microbial mining theory in terms of N limitation and confirms the stoichiometric decomposition theory.

TL;DR: In this article, the authors investigated the effect of various NO3− concentrations on the denitrification rate and the N2O/(N2O+N2) product ratio under standardized anoxic conditions in soils collected from long-term organic or inorganic fertilizer plots.

TL;DR: In this paper, a water-saving Ground Cover Rice Production System (GCRPS) was evaluated in 2001 and 2002 near Beijing, North China, where lowland rice was cultivated without a standing water layer during the entire growth period and plots were irrigated when soil water tension was below 15kPa (approximately 90% water holding capacity).

TL;DR: It is speculated that the application of organic matter in conjunction with ammonium nitrogen first leads to a decrease in denitrification-derived N(2)O emission compared with soil receiving mineral fertilizer, however, at later stages when denitification becomes C-limited, higher N( 2)O emissions are induced when the soil moisture is high.

TL;DR: Rice grain arsenic concentrations increase with increasing soil As concentrations until about 60 mg As kg−1soil and then decreases, and resistance mechanisms in rice agroecosystems are further enhanced when adequate concentrations of silicon and sulfur are present in soils and tissues, and when plants are associated with arbuscular mycorrhizal fungi.