Plant residue-derived hydrophilic and hydrophobic fractions contribute to the formation of soil organic matterBiology and Fertility of Soils - Tập 57 - Trang 1021-1028 - 2021
Xiaodong Zheng, Chengming Liang, Xiangbi Chen, Yajun Hu, Husen Qiu, Yinhang Xia, Zhongzhen Liu, Lan Wei, Tida Ge, Anna Gunina, Yirong Su
The fate of hydrophilic, hydrophobic, and insoluble fractions extracted from 13C-labelled maize straw and their use for the formation of bacterial and fungal-derived amino sugars (AS) were monitored during a 40-day incubation of upland and paddy soils. The highest sequestration of C in the AS pool was present in the hydrophilic fraction in both soils (1.1–1.4% of input C). Bacterial community in u...... hiện toàn bộ
The nature and origins of diester phosphates in soils: a 31P-NMR studyBiology and Fertility of Soils - Tập 35 - Trang 136-146 - 2002
M. Makarov, L. Haumaier, W. Zech
Soils of two climosequences in Russia were investigated by 31P-NMR spectroscopy. They comprised Dystric Podzoluvisols, Haplic Greyzems, Calcic Chernozems, and Gypsic Kastanozems, which are located along temperature and precipitation gradients of the Russian Plain. Another sequence of soils included forest Humic Cambisols and Umbric Leptosols of subalpine and alpine meadows, which are formed in di...... hiện toàn bộ
Zinc effects on a soil bacterial flora characterized by fatty acid composition of the isolatesBiology and Fertility of Soils - Tập 2 - Trang 59-63 - 1986
H. Ohya, Y. Komai, M. Yamaguchi
Effects of zinc (zinc chloride) added to a sandy clay loam soil on its bacterial flora were investigated by the study of cellular fatty acid composition of the isolates. The soil amended with glucose (carbon source) and ammonium sulfate (nitrogen source) was incubated in the presence (1.0 mg/g) or absence of zinc for 96 h. Bacterial strains were isolated on albumin agar from the incubated soils ev...... hiện toàn bộ
Factors influencing carbon decomposition of topsoils from the Brazilian Amazon BasinBiology and Fertility of Soils - Tập 28 - Trang 436-438 - 1999
L.-S. Koutika, T. Choné, F. Andreux, G. Burtin, C. C. Cerri
The influence of texture and local climate, especially precipitation, on C decomposition was evaluated in topsoils under forest and pastures at different sites located in the western, central, and eastern Brazilian Amazon Basin. Independent of the geographical location and vegetation cover, C decomposition was lower in topsoils of fine texture with a sand/clay ratio of less than 1, compared to to...... hiện toàn bộ