INFLUENCE OF THE USE OF DRIP IRRIGATION SYSTEMS AND DIFFERENT MULCHING MATERIALS ON ORNAMENTAL SUNFLOWERS IN GREENHOUSE CULTIVATION
This research, conducted during the 2010 spring-summer seasons in a plastic greenhouse Mediterranean type environment, investigated the effects of drip irrigation system (I1= surface drip irrigation; I2= subsurface drip irrigation) and mulching materials (PM1= black LDPE; PM2= LDPE white on black coextruded; BM1= black biodegradable spray with chitosan; BM2= black biodegradable spray with galactomannans and agarose; U.M= non mulching soil), on soil thermal behaviour, Irrigation Water Productivity (IWP), yield and quality features of ornamental sunflower cut stems. The sprays are two pre-competitive research materials, prepared using natural polymers. The thermal analysis showed that the mulching plastic films increased the soil temperatures around of 2°C, compared with the un-mulching soil, at 20 cm depth; instead the mulching sprays didnt influence significantly the thermal soil behaviour. The agronomic results showed that I1 had more advantage than I2 and that both PM2 and BM1 had the highest IWP values. Among the different mulches the values were, in order, PM1>PM2>BM2>BM1>UM for sunflower yield and qualitative characteristics.
Anifantis, A., Canzio, G., Cristiano, G., De Lucia, B., Russo , G., Vecchietti, L., Immirzi, B., Malinconico , M. and Santagata, G. (2012). INFLUENCE OF THE USE OF DRIP IRRIGATION SYSTEMS AND DIFFERENT MULCHING MATERIALS ON ORNAMENTAL SUNFLOWERS IN GREENHOUSE CULTIVATION. Acta Hortic. 952, 385-392
biodegradable materials, chitosan and galactomannans-based sprays, soil thermal behaviour, irrigation water productivity, sustainable floriculture