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Revista Brasileira de Engenharia Agrícola e Ambiental

On-line version ISSN 1807-1929


CARVALHO JUNIOR, Sebastião B. de et al. Production and bromatological evaluation of forage species irrigated with saline water. Rev. bras. eng. agríc. ambient. [online]. 2010, vol.14, n.10, pp.1045-1051. ISSN 1807-1929.

One of the alternatives for the disposal of desalinization waste is its use in fishponds and shrimp production and later reuse for irrigation of crops tolerant to salinity. This work was conducted in Barra de Santa Rosa, PB, with the aim of verifying the rate of seed germination, sprouting and bromatologic characteristics of maniçoba (Manihot glaziovii Muell Arg), erva-sal (Atriplex nummularia), silk flower (Calotropis procera) and 'jureminha' (Desmanthus virgatus), cultivated and irrigated with excess water of fishponds and shrimp production, coming from desalinization waste, with electrical conductivity of 5,800 and 5,200 μS cm-1, respectively. The silk flower and salt herb had higher rates of germination (96.0%) and spouting (70.0%), respectively, followed by the rate of sprouting of maniçoba (62.0%) and jureminha (51.0 %). Of the total transplanted, 95.0, 93.0, 82.7 and 80.5% of plants of silk flower, maniçoba, atriplex and mimosa were viable, respectively. Forages had good rate of germination and sprouting and spreading, and good bromatological composition, where as 'jureminha' and atriplex presented protein content, organic matter and gross energy 9.4 and 17.8%; 95.0 and 76.3%; and 4,295.8 and 3,575.9 cal g-1 of gross energy, respectively.

Keywords : waste water; animal feed; residue of water desalinators.

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