Nitrogen mineralization and crop uptake of N from decomposing 15N labelled red clover and yellow sweetclover plant fractions of different age

被引：0
作者：
Maria Wivstad
机构：
[1] Swedish University of Agricultural Sciences,Department of Crop Production Science
来源：
Plant and Soil | 1999年 / 208卷
关键词：
green manure; Melilotus officinalis; 15N mineralization; plant fraction; spring wheat; Trifolium pratense;
D O I：
暂无
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学科分类号：
摘要：
Nitrogen mineralization from 15N labelled red clover (Trifolium pratense L.) and yellow sweetclover (Melilotus officinalis Lam.) plant fractions of three different ages (8-, 14- and 20-week old) was studied in an out-door pot experiment during 8.5 months. Individual plant fractions (leaves/stems/roots/flowers), 23 g dry matter pot-1 (corresponding to 7300 kg ha-1), were incorporated into a sandy soil. The net mineralization of N was measured as 15N recovery in spring wheat (Triticum æstivum L.), perennial ryegrass (Lolium perenne L.) following the wheat and in the soil mineral N pool.
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页码：21 / 31
页数：10
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  • [1] Amato M(1984)Decomposition of plant material in Australian soils Aust. J. Soil Res. 22 331-341
  • [2] Jackson R. B.(1991)Crop residue type and placement effects on denitrification and mineralization Soil Sci. Soc. Am. J. 55 1020-1025
  • [3] Butler J. H. A.(1990)Green-manure legume effects on soil nitrogen, grain yield, and nitrogen nutrition of wheat Crop Sci. 30 819-825
  • [4] Ladd J. N.(1987)Nitrogen contribution to succeeding corn from alfalfa and red clover Agron. J. 79 96-100
  • [5] Aulakh M. S.(1990)The nitrogen mineralization rate of legume residues in soil as influenced by their polyphenol, lignin, and nitrogen contents Plant Soil 129 251-259
  • [6] Doran J. W.(1985)Kinetic parameters of nitrogen mineralization rates of leguminous crops incorporated into soil Plant Soil 87 257-271
  • [7] Walters D. T.(1994)Mineralization of labeled N from cowpea [ Plant Soil 160 259-266
  • [8] Mosier A. R.(1994) (L.) Walp.] plant parts at two growth stages in sandy soil Soil Biol. Biochem. 26 1379-1387
  • [9] Francis D. D.(1985)Carbon and nitrogen mineralization from cowpea plant parts decomposing in moist and in repeatedly dried and wetted soil Agron. J. 77 105-109
  • [10] Badaruddin M(1987)Nitrogen from forage legumes: harvest and tillage effects J. Agron. Crop Sci. 158 163-171
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