01777naa a2200289 a 450000100080000000500110000800800410001910000190006024501090007926000090018852009840019765000180118165000130119965000190121265000150123165000120124665000150125865000100127365000230128365000170130665000130132365300190133665300120135565300240136770000180139177300780140911523152022-06-03       2003    bl uuuu     u00u1 u    #d1 aMORGADO, L. B.  aEffects of plant population and nitrogen fertilizer on yield and efficiency of maize-bean intercropping.  c2003  aNitrogen supply and plant population are basic parameters for cereal-legume intercropping. In order to study plant population and nitrogen fertilizer effects on yield and yield efficiency of maize-bean intercropping, a field experiment was established. Three bean plant populations and three nitrogen levels were used. Maize dry matter accumulation decreased with increases in bean plant population. Competitive effect of intercrop beans on maize yields was high at higher plant populations, being decreased by nitrogen fertilizer; application of 50 kg ha-1 N was very efficient in increasing maize cob yield. Intercropping significantly decreased harvest index of beans in all plant population and nitrogen fertilizer situations. The efficiency of intercropping, compared to sole cropping, was evidenced by the values obtained for Land Equivalent Ratio (LER) for biomass, cob and pod yields that increased with increases in bean plant populations and nitrogen fertilizer levels.  aIntercropping  aland use  amixed cropping  aAdubação  aFeijão  aLeguminosa  aMilho  aPhaseolus Vulgaris  aUso da Terra  aZea Mays  aConsorciação  aCultivo  acultivo consorciado1 aWILLEY, R. W.  tPesquisa Agropecuária Brasileiragv. 38, n. 11, p. 1257-1264, nov. 2003.