000			017460000a22002770004500
904			_aBCO
905			_aC
908			_aJ
909			_aAS
914			_aFORES
082	0	4	_a40053
100	1		_951487 _aBRUBACHER, D.
100	1		_944333 _aARNASON, J.T.
100	1		_984704 _aLAMBERT, J.D.H.
260			_c1989
520			_aPlant lifeform composition and amounts of nutrients accumulated byfallows aged 1, 2 and 3 yr under shifting (milpa) cultivation in Belize were measured. N, P and K allocated to leaves rapidly reached a plateau in 1-yr-old fallows with little increase in 2-and 3-yr-old sites. In stem material, K was accumulated rapidly, with little increase after the 1st yr of fallow growth, while N and P accumulation proceeded at steady rates during 3 yr of fallow development. Total biomass in 3-yr-old fallows averaged 2070 g/m2 with 10.3 g/m2N, 0.73 g/m2 P and 13.2 g/m2 K. Nutrient concn. in early successional species were higher than in species of later successional status, suggesting different strategies for nutrient utilization. Woody lifeforms dominated the fallow vegetation, accounting for 80 percent of total biomass in 1st yr fallows and eliminating herbaceous species after 2 and 3 yr of fallow growth. The importance of rapid recovery of woody species is discussed as it relates to fallow management and weed control
650	1	4	_9136508 _aARBOLES Y CULTIVOS ANUALES
650	1	4	_922334 _aBELICE
691			_922335 _aBELIZE
692			_aBELIZE
773	0		_tPlant and Soil (Países Bajos) _d1989 _gv.114(2) p.165-172
040			_aCR-TuBCO _cCR-TuBCO _bEs
245	1	0	_aWoody species and nutrient accumulation during the fallow period of milpa farming in Belize, C.A.
942			_cANA
003			CR-TuBCO
999			_c54044 _d54044