The first hydroponic Winter cauliflower was harvested in week 17 in the prgram of "teelt de grond uit" in the Netherlands. The ‘Sidor’ variety was placed on a floating production system in August of last year. If risk of frost was present, the crop was protected with a double layer of acrylic fabric. Performance under these conditions was surprisingly good.
In a trial conducted a year earlier (2011/2012), the crop was protected with a single layer of acrylic fabric and hence did not survive. In the trial of last season different feeding schedules were maintained. With the best performing variant, a relatively high doses of nitrogen was administered during cultivation.
Source: Teelt de grond uit