UTILIZAÇÃO DE ÁGUA RESIDUÁRIA E DE ADUBAÇÃO ORGÂNICA NO CULTIVO DO GIRASSOL

• Main Authors: RENÊ MEDEIROS DE SOUZA, REGINALDO GOMES NOBRE, HANS RAJ GHEYI, NILDO DA SILVA DIAS, FREDERICO ANTONIO LOUREIRO SOARES
• Format: Article
• Language: English
• Published: Universidade Federal Rural do Semi-Árido 2010-01-01
• Series: Revista Caatinga
• Online Access: http://www.redalyc.org/articulo.oa?id=237116915016

The aim of this research was to examine the response of utilization of wastewater and organic manure on the growth of sunflower (Helianthus annuus L. cv. Embrapa BRS Oásis). The study was carried out from April to July 2009 in a greenhouse. Sunflower plants were irrigated with wastewater and tap water combined with doses of humus (w/w) of 0.5, 1.0, 1.5 and 2.0% and two controls (wastewater + mineral NPK and tap water + NPK) with three replications. Humus application did not show significant effect on any variable analyzed except duration of post-harvest where all treatments presented duration more than the established by the market, while the wastewater was efficient in all assessments, promoting substantial increases in the growth of sunflower.