Long-term impacts of manure, straw, and fertilizer on amino sugars in a silty clay loam soil under temperate conditions

There is increasing evidence that microorganisms participate in soil C sequestration and stabilization in the form of resistant microbial residues. The type of fertilizers influences microbial activity and community composition; however, little is known about its effect on the microbial residues and...

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Bibliographic Details
Published in:Biology and fertility of soils 2013-10, Vol.49 (7), p.949-954
Main Authors: Ding, Xueli, Han, Xiaozeng, Zhang, Xudong
Format: Article
Language:English
Subjects:
Agriculture
Agrochemicals
Agronomy. Soil science and plant productions
Amino acids
Biological and medical sciences
Biomedical and Life Sciences
Clay
Clay loam
Community composition
Environmental impact
Fertilizers
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Generalities. Analysis and diagnosis methods
Life Sciences
Manures
Microbial activity
Microorganisms
Mineral fertilizers
Organic carbon
Organic fertilizers
Organic wastes
Other nutrients. Amendments. Solid and liquid wastes. Sludges and slurries
Pig manure
Residues
Short Communication
Soil science
Soil Science & Conservation
Soil-plant relationships. Soil fertility. Fertilization. Amendments
Soils
Straw
Sugar
Temperature effects
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Summary:There is increasing evidence that microorganisms participate in soil C sequestration and stabilization in the form of resistant microbial residues. The type of fertilizers influences microbial activity and community composition; however, little is known about its effect on the microbial residues and their relative contribution to soil C storage. The aim of this study was to investigate the long-term impact (21 years) of different fertilizer treatments (chemical fertilizer, crop straw, and organic manure) on microbial residues in a silty clay loam soil (Udolls, USDA Soil Taxonomy). Amino sugars were used to indicate the presence and origin of microbial residues. The five treatments were: CK, unfertilized control; NPK, chemical fertilizer NPK; NPKS 1 , NPK plus crop straw; NPKS 2 , NPK plus double amounts of straw; and NPKM, NPK plus pig manure. Long-term application of inorganic fertilizers and organic amendments increased the total amino sugar concentrations (4.4–8.4 %) as compared with the control; and this effect was more evident in the plots that continuously received pig manure ( P  
ISSN:0178-2762
1432-0789
DOI:10.1007/s00374-012-0768-0