Cultivo de girassol para corte sob irrigação com água residuária e doses de matéria orgânica.

Abstract

It has tried to establish in northeastern Brazil the cultivation of sunflowers that allow enable íheir raíional exploitation under íechnical and economical, specially in the semiarid conditions where the shortage of water for various uses compromise the survival of the man himself, thus the wastewater and organic fertilization in sunflower cultivation are íhe alternai ive. The objective of íhis research vvas ío e vai uaie the influence of these nutrient sources on the growth of two sunflower varieties for environmental purposes (EMBRAPA BRS 122/V-2000 and BRS OÁSIS). The experiment vvas conducted between days Áprii 2nd and Juiy 3rd of 2009 in a protected environment conditions greenhouse belonging to the academic unit of Agricultural Engineering, Universidade Federal de Campina Grande, Campus I, Campina Grande, PB. In this work studied the effect of irrigation with Al - wastewater and A2 - water supply, associated with four doses of earthworm (Dl - 0.5, D2 -1.0, D3 -1.5 and D4 - 2 fl% KncfH nn «r»il wpicrhl^ nnrí twn witnf»<:«f»« (A1 + WPTf Á? + NPTf i with thrpp replicates each, totaling 30 experimental units for each variety. Ií was produced in íubes during 22 days the sunflower seedlings used. This study analyzed the characteristics of growth, production and post-havest of sunflower for ornamental purposes. Significants effects were observed for the factor dose of earthworm only for the variable days to disposal (DAD) and post-harvest (PPC) for BRS OÁSIS, while the wastewater was effecíive in al! assessmenís, promoíing subsíantia! increases for boíh sunflower varieties studied, demonstrating superiority in relation to the supply water