Effect of Seaweed Extract (Algareen-Twin) and Bio-Fertilizer (Optimus-Plus) on the Growth and Yield of Barley

Abstract

Abstract The aim of the study was to determine the effect of spraying levels of seaweed in a field experiment conducted in the Rabia district of the village (Al-Kubar), 106 km northwest of Mosul city. The aim of the study was to determine the effect of spraying levels of seaweed extract (100, 200, 300 ml. 100 L of water-1) and levels of bio-fertilizer (0, 50, 100, 150 ml.100 L of water-1) in the growth traits and yield of barley, as the results showed superiority to the level of seaweed extract (300 ml.100 L of water-1) for most of the traits studied ((plant height 84.26 cm), (tillers No. 530 tillers.m-2), (leaf chlorophyll content 48.71 SPAD), (Flag leaf area 25.07 cm2), (Spikes No. 450.5 Spikes.m-2), (Grain yield 499.56 g. m-2), (and the harvest index 52.37%)). As for the bio-fertilizer, the level (150 ml. 100 L of water-1) exceeded most of the studied traits ((plant height 81.51 cm), (Tillers No. 496.28 tillers. m-2), (chlorophyll content of leaves 45.46 SPAD), (Flag leaf area 24.81 cm2), (Spikes No. 428.06 Spike.m-2), (Grain yield 477.27 g.m-2), (and harvest index 50.11%)). The results also showed that the interaction of spraying seaweed extract at a level of (300 ml. 100 L of water-1) and the bio-fertilizer at a level of (150 ml. 100 L of water-1) had a significant positive effect for most of the studied traits, as follows: ((plant height 91.48 cm), (Tillers No. 551.17 tillers.m-2), (Chlorophyll content in leaves 52.13 SPAD), (Flag leaf area 26.62 cm2), (Spikes No. 473 spike.m-2), (Grain yield 602.92 g.m-2), and (Harvest index 57.05%)).