SciELO - Scientific Electronic Library Online

 
vol.33 issue2Host and successive cycles of multiplication affect the detection of arbuscular mycorrhizal fungi in gypsum mining impacted areasPotential of Cajanus cajan and Crotalaria spectabilis for phytoremediation: arsenic absorption and antioxidative responses author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Revista Árvore

Print version ISSN 0100-6762

Abstract

CALDAS, Glauco Gouvêa et al. Effects of phosphorus fertilization on root, litter and nodule production of Mimosa caesalpiniifolia. Rev. Árvore [online]. 2009, vol.33, n.2, pp. 237-244. ISSN 0100-6762.  http://dx.doi.org/10.1590/S0100-67622009000200005.

This work aimed to evaluate the effect of phosphorus fertilization on nodulation, litter deposition and root system development of M. caesalpiniifolia Benth, before and after pruning, at the Itambé Experimental Station of Pernambuco Agronomical Institute - IPA in Pernambuco, Brazil. Treatments were levels of phosphorus fertilization (0, 100 and 200 kg.ha-1 of P2O5) arranged in a randomized block design with six replicates in block I and seven in block II, with the criterion for block formation being uniformization cut date. Samplings were taken before and after pruning of the aerial part Root length and root, nodule and litter dry matter had similar results before and after pruning. Nodule numbers before pruning were 2, 15 and 6 for 0, 100 and 200 kg.ha-1 of P2O5, respectively, and 1, 6 and 7 after pruning. Average root lengths ranged from 552 to 734 cm before and from 389 to 455 cm after pruning. The number of nodules presented variation only from August to November 2005, with values from 2 to 15 and from 1 to 7 nodules, before and after pruning, respectively.

Keywords : Legume; nodulation; root system.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese