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NITROGEN TRANSFER IN ECOSYSTEMS
Halstead and R B McKercher
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A. D. McLaren Acta activity addition adsorption Agri Amer amino acids amounts appear associated Biochem Biochemistry Biol biological bonds carbon caused cell Chem chemical clay complexes components compounds concentrations containing culture degradation Department derivatives ecosystems effect environment enzyme extraction factor Food formation fraction fungi glucose greater groups growth half-life humic acid humus hydrolysis hydroxamic acids important increase indicated inhibition inorganic inositol involved iron isolated lignin loss material microbial microorganisms minerals molecular weight Nature nitrogen observed occur organic matter organic phosphorus oxidized pesticide phenols phosphates plant polymers preparation present probably Proc protein range reactions recent released reported residues result showed shown similar soil organic Soil Sci solution stability structure studies substances substrate suggested surface synthesis Table tannins temperature tion units University values various Weed whereas York