000			01298nam a2200169Ia 4500
003			MX-MdCICY
005			20250625140626.0
040			_cCICY
090			_aB-10145
245	1	0	_aAmino acid biodegradation and its potential e_ects on organic nitrogen capture by plants
490	0		_vSoil Biology & BioChemistry, 31, p.613-622, 1999
520	3		_aIt has been reported that plant roots can directly utilise soil organic-N in the form of amino acids without prior mineralisation by the soil's microbial biomass. To critically assess this, however, requires a knowledge of microbial amino acid- N turnover times in soil. The e_ects of soil type, depth and temperature on the uptake and partitioning of a mixture of 15 14C- labelled amino acids by the soil's microbial biomass was therefore studied in 10 contrasting soil types. The results indicated that the degradation of amino acids was soil dependent but that the mean half-life in topsoils at 188C was 1.720.6 h, whilst in subsoils the mean half-life was 12.223.3 h. On average 34
700	1	2	_aJones, D.L.
856	4	0	_uhttps://drive.google.com/file/d/1HzAxspciRJGy3j6oKB5Z39V1fqxy-CXJ/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942			_2Loc _cREF1
008			250602s9999 xx |||||s2 |||| ||und|d
999			_c44384 _d44384