+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

A Comparison of Different Preservation Methods for Nitrogen Isotopes of Soil Extractable NO3(-)

A Comparison of Different Preservation Methods for Nitrogen Isotopes of Soil Extractable NO3(-)

Pedosphere 28(6): 943-951

ISSN/ISBN: 1002-0160

DOI: 10.1016/s1002-0160(17)60412-0

Nitrogen (N) isotope ratio (delta N-15) of soil extractable NO(3)(-)plays a pivotal role in the study of N biogeochemical circulation in ecosystems. However, the NO(3)(-)concentration and its isotope composition of soil samples are unstable, making sample storage critical for preserving the N isotope composition of extracted soil Nevertheless, studies on the appropriate selection of storage methods after soil sampling are scarce. In this study, we compared two commonly used methods for storing soil samples and investigated the stability of N isotopes of soil The results demonstrated that no significant changes in the NO(3)(-)concentration and delta N-15 value occurred in the samples stored at -18 degrees C. However, the soil NO(3)(-)concentration markedly increased, and NO3- delta N-15 value significantly changed after air-drying storage. Meanwhile, we also found that NO3- and its delta N-15 were well preserved in the filtered soil extracts after 1 month. In contrast, the NO(3)(-)concentration gradually decreased and the N-15 in NO(3)(-)was gradually enriched in the bactericidal agent-containing soil mixture solution during the storage period. Overall, our results indicated that N isotopes of NO3- could be effectively preserved in frozen-stored soil samples or filtered soil extracts. For field investigations conducted in remote areas and continued for a long-time period (and lacking a refrigerant supply), soil extraction/filtration using a CaSO4-saturated solution may be a superior preparation and storage method for analyzing N isotopes of soil NO3-.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 070901071

Download citation: RISBibTeXText

Related references

Factors affecting the determination of available soil nitrogen by chemical methods: 1. Comparison of extractable with mineralized nitrogen. Soil Sci 110: 299-305, 1970

Factors Affecting The Determination Of Available Soil Nitrogen By Chemical Methods: I. Comparison Of Extractable With Mineralized Nitrogen. Soil Science 110(5): 299-305, 1970

Factors affecting the determination of available soil nitrogen by chemical methods part 1 comparison of extractable with mineralized nitrogen. Soil Science 110(5): 299-305, 1970

Factors affecting the determination of available soil nitrogen by chemical methods. Comparison of extractable carbon with mineralized nitrogen. Soil Sci 110: 365-370, 1970

Soil nitrogen availability in the cereal zone of South Australia: II. Buffer-extractable nitrogen, mineralisable nitrogen, and mineral nitrogen in soil profile under different land uses. Australian Journal of Soil Research 34(6): 949-965, 1996

Comparison of Zn extractable bioavailable methods and its critical level in soil and plant. Sarhad Journal of Agriculture 16(3): 305-317, 2000

A comparison of methods for determining extractable soil potassium in fertilizer test plots. Soil Science Society American Proceedings 21(2): 222-225, 1957

The long term preservation of potato virus y and watermelon mosaic virus in liquid nitrogen in comparison to other preservation methods. Netherlands Journal of Plant Pathology 85(1): 23-30, 1979

Extracting condition of soil nitrogen with phosphate-buffered solution in connection with extractable soil nitrogen. Japanese Journal of Soil Science and Plant Nutrition 69(4): 355-364, 1998

Influence of nitrogen fertilization on cabbage yield, head nitrogen content and extractable soil inorganic nitrogen at harvest. Canadian Journal of Plant Science 71(4): 1275-1280, 1991

Comparison of three different methods of analytical imaging of the stable isotopes of nitrogen for application to plant studies. Journal of Trace and Microprobe Techniques 12(3): 103-122, 1994

Carbon, hydrogen and nitrogen isotopes in solvent-extractable organic matter from carbonaceous chondrites. Geochimica et Cosmochimica Acta 46(1): 97-103, 1982

Use of nitrogen isotopes and a light textured soil to assess annual contributions of nitrogen from soil and storage pools in mature almond trees. Journal of the American Society for Horticultural Science 112(3): 526-529, 1987

Estimating the optimum nitrogen fertilizer rate from hot water extractable soil nitrogen. Symposium "Nitrogen and Sugar Beet": 447-454, 1983

Studies on the methods of measuring forms of available soil nitrogen iii correlations and regressions analyses for soil available nitrogen in relation to the other soil nitrogen values on the 24 kinds of tobacco d cultivated soils. Bulletin Of The Hatano Tobacco Experiment Station: 9-98, 1967