Abstract
A field experiment was carried out during summer season 2021 at Izzah Heuristic Farm in Wasit Governorate, Iraq to evaluate the effect of seaweed extract rates, zinc (Z) and iron (Fe) fertilisers on some vegetative growth characteristics of mung bean. Three seaweed extract levels were used in this experiment: 0, 50 and 100 ml.L-1 and four micronutrient levels: Z and Fe with 50 ml.L-1 and a mixture of both Z and Fe with a rate of 100 ml.L-1 (50ml.L-1 each). A randomized complete block design (RCBD) with a Factorial arrangement and three replicates was used in this experiment. The results showed that all growth characteristics have significantly increased as the seaweed extract levels increased except for the plant height. The nutrient Fe had generally more influence on the growth traits than Z. However, the combination of Z and Fe seemed to be more effective where they had significantly increased all of the parameters. Except for the plant height, the combination of between the highest level of seaweed and the ZFE mixture appeared to have the greatest number of branches, largest number of leaves, higher leaf area and higher leaf area index. It is clear that seaweed extract can be more reliable and alternative fertilisation for better growth and yield production.