| A field experiment was carried out at the Experimental Field of Hort. Dept/ College of Agric.Abu-Ghraib/University of Baghdad during the growth season of 2008-2009, to study growth and accumulation of inulin and cynarin in artichoke leaf by effect three dates of planting; 1/10, 20/10, 10/11/2008 and levels of fertilizers control (with out fertilizer addition), recommended chemical fertilizer., humic (high K) foliar spray + adding to the siol, poultry manure 20 ton/ha + humic (high K) spray, poultry manure 40 ton/ha+ humic(high K) spray. A spilt plot design was implemented with three replicates. The results showed higher increasing in number of leaf, dry weight, yield of cynarin in leaf, percentage of nitrogen and protein in heads was in first date (54.5 leaf, 629.1 g, 202.1 g/ha, 88%, 5.5%) respectively, higher percentage nitrogen in leaf and caffeolguinic in second date (0.56%, 418.7 microgram/g) and higher percentage of cynarin in leaf in third date(146.8 microgram/g). The higher increasing in number of leaf , dry weight and yield of cynarin was in levels of poultry manure 40,20 ton/ha with humic (52.5, 51.6 leaf, 717.7, 611.1 g, 276.8, 232.5 g/ha) respectively. Higher percentage of inuline and cynarin in leaf which was in level 40 ton/ha with humic (30.8 g/mg, 123.9 microgram/g). increased percentage of nitrogen, protein and caffeolguinic in heads in level 20 ton/ha with humic (o.95%, 5.6%, 530.3 microgram/g) respectively. The interaction between poultry manure at the rates of 40, 20 ton/h with humate and first planting date in number of leaf (59.3, 56.6) and percentage of cynarin in leaf with third date (175.9, 157.2 microgram/g). The higher increasing in dry weight, percentage of nitrogen and protein in heads in interaction the level 20 ton/ha + humic with first date (876.1g, 1.1%, 6.9%) and the interaction with second date in yield of cynarin in levels (323.3 g/ha). The higher percentage of caffeolguinic in heads in interaction the level 20 ton/ha + humic with second date (746.5 microgram/g). While was higher percentage of inulin in interaction the control with first date in heads (39.9 mg/g). |