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090 _aB-10412
245 1 0 _aFree amino acid, ammonium and nitrate concentrations in soil solutions of a grazed coastal marsh in relation to plant growth
490 0 _vPlant, Cell and Environment, 25, p.665-676, 2002
520 3 _aSoluble free amino acids, ammonium and nitrate ions as sources of nitrogen for plant growth were measured in soils of a coastal marsh grazed by snow geese in Manitoba, Canada. Amounts of nitrogen, primarily ammonium ions, increased in the latter half of the growing season and over winter, but fell to low values early in the growing season. Free amino acid concentrations relative to ammonium concentrations were highest during the period of rapid plant growth in early summer, especially in soils in the intertidal zone, where the median ratio of amino acid nitrogen to ammonium nitrogen was 0ยท36 and amino acid concentrations exceeded those of ammonium ions in 24
650 1 4 _aAMINO ACID UPTAKE
650 1 4 _aMINERALIZATION
650 1 4 _aNITROGEN AVAILABILITY
650 1 4 _aNITROGEN CYCLING
650 1 4 _aORGANIC NITROGEN
700 1 2 _aHenry, H.A.L.
700 1 2 _aJefferies, R.L.
856 4 0 _uhttps://drive.google.com/file/d/1ur1oHBUQK1m-MDGi8W-JLwHoK9VKhXTc/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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