01161 a2200337 4500502002400000260001500024653001400039100002200053041000700075260003100082300001100113245010500124650003100229650002400260650002100284650003100305650002700336650001000363650001900373650002300392650001800415260002000433300002900453130000700482710002600489040001400515041000700529100008900536520018000625020001800805 aThèse de Doctorat aWageningen1 aAgronomie aMERTENS? sHANA k; bEn bUniversité de Wageningen a136 p. aOn weed competition and population dynamics : considerations for crop rotations and organic farming  aEVOLUTION DE LA POPULATION aPOPULATION DYNAMICS aWEED COMPETITION aDYNAMIQUE DE LA POPULATION aAGRICULTURE BIOLOGIQUE aWEEDS aMAUVAISE HERBE aROTATION CULTURALE aCROP ROTATION c14 October 2002 bIll., Couv. ill. ; 24 cm lEn awAGENINGEN uNIVERSITY aSupport  bEn uAbomey-Calavi, Université d'Abomey-Calavi, Faculté des Sciences Agronomiques, Bj aExperiments, monitoring studies and modelling of weed population dynamics were carried out to investigate potential methods for reducing weed populations in farming systems... a90-5808-723-9