USE OF NMR-SPECTROSCOPY TO STUDY TRANSFORMATIONS OF NITROGENOUS SUBSTANCES DURING INCUBATION OF PEAT

被引：9

作者：

CHESHIRE, MV

WILLIAMS, BL

BENZINGPURDIE, LM

RATCLIFFE, CI

RIPMEESTER, JA

机构：

[1] Macaulay Land Use Research Institute, Aberdeen

[2] Ottawa

[3] National Research Council, Ottawa

来源：

SOIL USE AND MANAGEMENT | 1990年 / 6卷 / 02期

关键词：

D O I：

10.1111/j.1475-2743.1990.tb00813.x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Abstract. Samples of peat were incubated with 15N‐labelled ammonium sulphate, urea, wheat straw and glycine and divided into six size fractions of solid components and a water‐soluble fraction. The fractions were analysed by NMR spectroscopy to study the formation of humic substances and rind how fertilizer nitrogen is immobilized in peaty soils. After six months' incubation about half of the ammonium sulphate nitrogen was still present as ammonium in the soluble fraction, the urea had been entirely metabolized to ammonium and various organic compounds, about half the straw had been decomposed to ammonium and amino acid or peptide materials, and most of the glycine had been transformed to ammonium, amide and aliphatic amine. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：90 / 92

页数：3

共 2 条

[1] Benzing-Purdie L.M., Cheshirk M.V., Williams B.L., Sparling G.P., Ratclliffe C.I., Ripmeester J.A., Fate of [15N] glycine in peat as determined by 13C and 15N CP‐MAS NMR Spectroscopy, Journal of Agricultural and Food Chemistry, 34, pp. 170-176, (1986)
[2] Williams B.L., Cheshire M.V., SPARLING G.P., Distribution of 14C between particle size fractions and carbohydrates separated from a peat incubated with 14C‐glycine, Journal of Soil Science, 38, pp. 659-666, (1987)

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