Influence of Polyethylene Soil Mulch and Foliar Application of Urea , Complete Fertilizers, Seaweed in Alleviating Salt Stress of Broccoli (Brassica Oleracea Var.Italica)

Ali Husain Jasim, Fadia Hameed Moham, Wasan M. Abo Al-Timman


This experiment was carried out to study the effect of soil mulch (with black polyethylene) and foliar application of  urea, complete fertilizer and seaweed as well as control) and their interaction in alleviation of salt stress on broccoli which cultivated in salty soil(11.3 dS.m-1) under drip irrigation , by estimating of leaf area, SOD and Catalase activity , MDA and Glutathione concentration in both of leaves and flowers.  In broccoli leaves, soil mulch gave a significant effect in each of leaf area, SOD activity and non- significant effect in catalase activity, Glutathione  and MDA concentration , while in flowers it caused a significant effects on all studied parameters except catalase activity compared to no mulch treatment . Complete fertilizer treatment caused higher effect in all studied parameters than urea and seaweed compared to control treatment . In all studied parameters , the interaction between soil mulch and foliar treatments had high significant effect . complete fertilizer + mulch treatment was the  best, which caused increase in leaf area , SOD and Catalase activity in addition of Glutathione concentration compared to control treatment in both leaves and flowers , while it caused the biggest significant decrease in MDA concentration in both of leaves and flowers.

Keywords: Broccoli, Foliar fertilizer, seaweed , soil mulch, Urea, complete fertilizer

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ISSN (Paper)2224-3208 ISSN (Online)2225-093X

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