Two field experiments conducted at Nineveh Governorate at two locations:
AL-Rashidia and Baashiqa during winter growing season 2018-2019, to study the effect of sea Algae Extract (Algaren Twin) and Humic Acid on yield and components of Broad Bean crop (Vicia faba L. Var. "Histal"). The experiment consist of two factors; first one was three concentrations of Algae Extract (AE): (without, seed soaking and spraying), seed soaked with conc. 4ml (AE).L-1 and sprayed plants with conc. 1.5 ml (AE).L-1. The second factor was Humic Acid (HA) with three levels: (0 ،2 and 4 kg (HA). Ha-1). The experiments carried out in a Split Plot Design with three replications, the main plots assigned to (AE), while (HA) considered as sub plot. The results were as following:
Soaking the seeds and spraying the plants with algae extract increased significantly the yield and its components as well as the number of pods.plant-1, the number of seeds.pod-1, weight of seed per pod, weight of 100 seeds, and the total yield of seeds were superior with no-added treatment in Rashidiya and Bashiqa sites respectively. While the protein percentage in seeds at Bashiqa was superior for 2 and 4 levels of Humic Acid.Ha-1 in all studied traits compared with without addition treatment, for both sites. The interaction of seed soaking or spraying plants with seaweed extract with levels of Humic acid (2 or 4 kg. ha-1) showed significant superiority for all traits studied in both locations.