RESPONSE OF GROWTH AND YIELD OF CORN (ZEA MAYS L.) TO BIO-FERTILIZER AND SEA-ALGAE EXTRACT

During the summer of 2021, a field experiment was carried out in the village of Al-Shuhada, which is 30 kilometers west of the city of Mosul, for two spring and autumn seasons. The experiment was carried out using the split plot system and a Randomized complete block design. Where the levels of bio-fertilization occupied the main plot and the levels of seaweed (Algaren-Twin) sub plot with three replicates. Second factor is three levels of seaweed extract with the trade name (Algaren Twin) 4, 2 and 6 kg/L. The most important results obtained are summarized as follows: The effect of biofertilizer was significant on all traits of growth and yield of maize in both crops, except for No. of cob, which, in both spring and fall crops, was not significantly affected by biofertilizer. The levels of seaweed extract significantly affected all growth traits and yield of maize in both the spring and autumn seasons, except for plant height, stem diameter and cob number. It was not significantly affected by seaweed extract in the spring season only.