02186naa a2200337 a 450000100080000000500110000800800410001902400400006010000200010024501560012026000090027652011470028565000150143265000150144765000200146265000160148265000130149865000160151165300450152765300270157265300240159965300190162370000190164270000190166170000220168070000200170270000180172270000170174070000180175777300730177520937242018-08-02       2018    bl uuuu     u00u1 u    #d7 a10.21475/ajcs.18.12.07.PNE11582DOI1 aCOSTA, F. G. B.  aProductive and morphogenetic characteristics of sunflower irrigated with domestic treated wastewater on northeast semiarid area.h[electronic resource]  c2018  aThe present study aimed to evaluate the agronomic performance of the sunflower crop irrigated with treated domestic wastewater and normal water (well-water) in a inceptisol of Apodi, State of Rio Grande do Norte, Brazil. The experiment was conducted in a randomized block experimental design, consisting of five treatments and five replications, using the H-251 sunflower cultivar from Embrapa. The treatments consisted of the application of five proportions of wastewater/well-water (T1 - 100% wastewater; T2 - 75% wastewater and 25% well water, T3 - 50% wastewater and 50% well-water, T4 - 25% wastewater and 75% well-water and T5 - 100% well-water plus chemical fertilizer, control). The variables such as plant height, leaf number, diameter of stem and the head, yield, oil production, thousand-grain weight and head weight were evaluated. The combined use of wastewater and well-water is an alternative for the substitution of mineral fertilization with minimal damage to the productive potential and development of the sunflower crop. In general, the T4 treatment was the most adequate to improve agronomic performance of the sunflower.  aHelianthus  aIrrigation  aSunflower hulls  aWater reuse  aGirassol  aIrrigação  aÁguas residuárias domésticas tratadas  aDesempenho agronômico  aResíduos líquidos  aReuso de água1 aBATISTA, R. O.1 aPEREIRA, J. O.1 aFERREIRA NETO, M.1 aALVES, S. M. C.1 aSIMOES, W. L.1 aSOUZA, L. di1 aPODEUS, R. V.  tAustralian Journal of Crop Sciencegv. 12, n. 7, p. 1184-1190, 2018.