Effects of plant population and nitrogen fertilizer on yield and efficiency of maize-bean intercropping
DOI:
https://doi.org/10.1590/S1678-3921.pab2003.v38.6698Keywords:
Zea mays, Phaseolus vulgaris, mixed cropping, land useAbstract
Nitrogen 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.Downloads
Published
2003-11-01
How to Cite
Morgado, L. B., & Willey, R. W. (2003). Effects of plant population and nitrogen fertilizer on yield and efficiency of maize-bean intercropping. Pesquisa Agropecuaria Brasileira, 38(11), 1257–1264. https://doi.org/10.1590/S1678-3921.pab2003.v38.6698
Issue
Section
CROP SCIENCE