Transformation of organic N newly added to red soil treated with different cultural practices
- 1. Zhejiang Agricultural Univ., Hangzhou (China). Inst. of Nuclear-Agricultural Sciences
- 2. Zhejiang Agricultural Univ., Hangzhou (China). Dept. of Soil Sciences and Agricultural Chemistry
Description
By using 15N tracer method, transformation of organic N, which was newly added to red soil treated with different cultural practices, was studied under the laboratory incubation condition. The experimental results showed that the transformation of N from newly added organic matter and soil native pool during incubation was influenced by cultural practice treatment before incubation. Fallow was favorable to the mineralization of newly added organic N and soil N compared with the planting wheat treatment. Planting wheat greatly increased the loss of soil N. Application of fertilizers stimulated the mineralization of newly added organic N and application of organic matter reduced the mineralization, but stimulated microbial transformation of newly added organic N
Additional details
Publishing Information
- Journal Title
- Nuclear Science and Techniques
- Journal Volume
- 9
- Journal Issue
- 1
- Journal Page Range
- p. 59-61.
- ISSN
- 1001-8042
- CODEN
- NSETEC
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 29019066
- Subject category
- S60: APPLIED LIFE SCIENCES;
- Descriptors DEI
- BIOMASS; CULTIVATION TECHNIQUES; FERTILIZERS; HUMUS; MINERALIZATION; NITROGEN; NITROGEN CYCLE; NITROGEN 15; RYE; SOILS; TRACER TECHNIQUES
- Descriptors DEC
- CEREALS; ELEMENTS; ENERGY SOURCES; GRAMINEAE; ISOTOPE APPLICATIONS; ISOTOPES; LIGHT NUCLEI; LILIOPSIDA; MAGNOLIOPHYTA; NITROGEN ISOTOPES; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; PLANTS; RENEWABLE ENERGY SOURCES; STABLE ISOTOPES