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Pastos y Forrajes
versão On-line ISSN 2078-8452
Resumo
PENTON-FERNANDEZ, Gertrudis et al. Management of the nutrition and defoliation of Morus alba (L.) var. tigreada for leaf production. Pastos y Forrajes [online]. 2016, vol.39, n.4, pp. 252-258. ISSN 2078-8452.
In an established plantation of mulberry [Morus alba (L.) var. tigreada], without irrigation and subject to cutting intervals, the effect of intercropping jack bean [Canavalia ensiformis (L.)] inoculated with arbuscular mycorrhizal fungi (AMF), complemented with mineral fertilizers, was determined, in both seasons. A randomized block design with factorial arrangement and four replications was used. The treatments were: cutting intervals of 30, 60 and 90 days; and nutrition management: without mineral fertilizers or intercropped AMF-inoculated jack bean; mineral fertilization with 150 and 75 kg ha-1 of N and K2O per season, respectively; and intercropped jack bean inoculated with Glomus cubense. The season influenced the production, which was three times higher in the rainy season than in the dry season. The leaf N concentration in mulberry was higher with the mineral fertilization and decreased with the cutting interval; the values were below the optimum one reported for the species. It is concluded that the 90-day cutting interval showed the best results and in this treatment it was feasible to intercrop jack bean inoculated with AMF in the rainy season
Palavras-chave : vesicular arbuscular mycorrhizae; yield; survival.