SciELO - Scientific Electronic Library Online

 
vol.32 issue3Interaction of lime and zinc levels in the morphologic characteristics and production components of castor bean plantsDirect organogenesis of rice (Oryza sativa L.) mesocoptiles author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Acta Scientiarum. Agronomy

On-line version ISSN 1807-8621

Abstract

TEIXEIRA, Cícero Monti et al. Bean mineral nutrition influenced by nitrogen and straws of millet and millet plus jack bean intercropping. Acta Sci., Agron. (Online) [online]. 2010, vol.32, n.3, pp.511-519. ISSN 1807-8621.  https://doi.org/10.4025/actasciagron.v32i3.4392.

This study was carried out to evaluate the effect of straws of millet (Pennisetum typhoides (Burm.) Stapf) and millet plus jack bean (Canavalia ensiformes (L.) DC.) intercropping and nitrogen fertilization levels on bean mineral nutrition in a no-till system. The experiment was carried out in a randomized blocks design and four replications in a split-plot arrangement, with the straws in the plots and nitrogen levels at sowing (30 and 60 kg ha-1) and at topdressing (0, 40, 80 and 120 kg ha-1) as a 2 x 4 + 1 factorial in sub-plots, plus an additional treatment with 30 kg ha-1 at sowing, without topdressing, and seed inoculation with Rhizobium tropici with Co and Mo foliar application. The millet plus jack bean straw provide the highest N and Mg contents. N topdressing levels increased N foliar concentration up to 116 kg ha-1, providing a linear effect in K and S contents and differenced effects on Mg concentration, depending on the N level at sowing and straw combinations. The additional treatment increased the N concentration only in millet straw, K and Cu in two straws, and reduced the Ca and Mg contents, under millet and millet plus jack bean straws, respectively. The topdressing levels increased the grain yield, with the bigger response in 30 kg ha-1 at of N sowing.

Keywords : cover crops; no-till; grassy x leguminous intercropping; nitrogen fertilizer; biology nitrogen fixation.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )

 

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