SciELO - Scientific Electronic Library Online

vol.21 issue1Vigor de las semillas y productividad de variedades de maízCaracterización molecular de accesiones cultivadas y silvestres de frijol común de Honduras author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Agronomía Mesoamericana

On-line version ISSN 2215-3608Print version ISSN 1659-1321


CASTILLO-CAAMAL, José Bernardino et al. Evaluación de tres leguminosas como coberturas asociadas con maíz en el trópico subhúmedo. Agron. Mesoam [online]. 2010, vol.21, n.1, pp.39-50. ISSN 2215-3608.

Evaluation of three legumes as cover crops with maize under subhumid tropic. The objective of this work was to evaluate the potential of three legumes as cover crops to improve maize production systems. Four treatments were evaluated: 1) control, maize in monoculture; 2) maize - short-cycle, white seed lima bean (Phaseolus lunatus); 3) maize - long cycle, white seed lima bean Phaseolus lunatus), and 4) maize - velvet bean (Mucuna sp.), in a randomized complete blocks design with four replications during four growing cycles (1999-2002), in Yucatán, México. We measured: crop biomass, pH, total N, potential anaerobic mineralization of N, CO2 evolution, potassium (K), phosphorus (P), and soil organic matter, and biomass and frequency of weeds. Legume stubble residues accumulated on maize crops were: 3436, 3425 and 4018 kg DM/ha for the first, second and third year, respectively. Nitrogen contributed by stubble material was 25.8, 31.9, 52.8, and 43.4 kg/ha in treatments 1, 2, 3, and 4, respectively. Maize grain yield was 841, 843, and 460 kg DM/ha in the first, second and third year, respectively, without significant differences between treatments. During the third year, velvet bean caused a reduction in weed biomass from 126 to 58 g DM/m2. Cover crops had little influence on soil variables and maize grain yield.

Keywords : Weeds; nutrients; organic matter.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License