000			03146nab a22004457a 4500
001			G81276
003			MX-TxCIM
005			20220530204649.0
008			210614s2005 ne |||p|op||| 00| 0 eng d
022			_a0378-4290
024	8		_ahttps://doi.org/10.1016/j.fcr.2004.06.009
040			_aMX-TxCIM
041			_aeng
072		0	_aF01
072		0	_aF04
090			_aCIS-4314
100	1		_aRobertson, M. _97319
245	1	0	_aSimulating response of maize to previous velvet bean (Mucuna pruriens) crop and nitrogen fertiliser in Malawi
260			_aAmsterdam (Netherlands) : _bElsevier, _c2005.
340			_aComputer File|Printed
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0378-4290
520			_aA velvet bean (Mucuna pruriens L.) module for the agricultural production systems simulator (APSIM) was developed in order to assess the nitrogen (N) and yield benefits of velvet bean green manure crops, when grown in rotation with maize in small holder situations in Malawi. The velvet bean module was able to simulate maturity biomass from six contrasting sites in Malawi over an observed range of 847–10,420 kg/ha with a root mean squared deviation (RMSD) of 1562 kg/ha. APSIM was then tested for its ability to simulate the response of maize crops to fertiliser N in two seasons, to previous velvet bean green manure crops in one season, or both in combination in one season. With no previous velvet bean crop, the response to fertiliser N varied across sites from a non-significant increase to an eight-fold increase in maize yield. Where a velvet bean crop was grown in the previous season, the response to applied N varied from non-significant to slight. Simulated yields were within one standard error of the observed in the majority of cases. A sensitivity analysis for key parameters in the velvet bean module highlighted, that those governing the N content of crop root and shoot residues had greatest impact on maize yield response. Parameters controlling production and partitioning of root or shoot biomass were less important. To our knowledge this is the first reported case of a cropping systems simulation model being tested for its ability to simulate the production of a green manure legume followed by a cereal.
546			_aText in English
591			_a0502|Elsevier|AL-Maize Program
650		7	_aMaize _2AGROVOC _91173
650		7	_aBean sprouts _2AGROVOC _927642
650		7	_aMucuna pruriens _2AGROVOC _927643
650		7	_aFertilizer application _91110 _2AGROVOC
650		7	_aNitrogen content _2AGROVOC _95218
650		7	_aCrop yield _2AGROVOC _91066
650		7	_aProduction economics _2AGROVOC _96442
651		7	_2AGROVOC _91319 _aMalawi
700	1		_aSakala, W. _920254
700	1		_aBenson, T. _920255
700	1		_aShamudzarira, Z. _97167
773	0		_tField Crops Research _n630660 _gv. 91, no. 1, p. 91-105 _dAmsterdam (Netherlands) : Elsevier, 2005. _wG444314 _x0378-4290
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/492
942			_cJA _2ddc _n0
999			_c25280 _d25280