Effect of Foliar Seaweed and Different Irrigation Levels on Water Consumption, Growth and Yield of Wheat

Abstract

Abstract This experiment was carried out using the RCBD randomized complete block design in the Yusufiya district in Baghdad governorate during the agricultural season 2020/2021. The experiment included three spraying levels of seaweed extract of 2,4,8 ml L−1 and three levels of depletion of available water 25,50,75%, with three replicates for each treatment. Some plant tests and some water calculations were conducted, as the results indicated that there were significant differences between spray levels of marine algae extract in plant height, number of branches, leaf surface area, grain yield and biological yield. The spray level of 8 ml L−1 exceeded the levels of 2 and 4 ml L−1. It was also found that treatment 25% was significantly superior according to the different levels of depletion of the available water, as the treatment and for all the studied traits, and there was a significant superiority for the water consumption according to the level of spraying and the level of depletion, and the values ranged from 548.5 to the depletion treatment 25% and at a seaweed extract level of 8 ml L−1 to 404.5 for 75% depletion treatment and at a seaweed extract level of 2 ml L−1, As for the productivity of crop and field water, its values ranged from 1.16 and 1.54 kg m3, respectively, for 50% depletion treatment of the available water and spray level of 8 ml L−1 to 0.87 and 1.13 kg m 3 respectively, for 75% depletion treatment of available water and spray level of 2 ml L−1.