The study, carried out during the winter of 2022–2023 at the Fadliyah Region, Thi-Qar Governorate, Iraq, sought to determine the effects of nano-aluminum silicate and irrigation periods on the growth and yield traits of wheat (Triticum aestivum L.) cultivar Buhouth-22. The experiment had a randomized complete block design (RCBD) with split-plot arrangement, two factors, and three replications. The first factor (main plot) included irrigation periods (I), irrigation every seven days (I₁), 14 days (I₂), and 21 days (I₃), while the second factor (subplot) comprised the volumetric percentages of mixing nano-aluminum silicate (12 nm) with soil (S) i.e., 3% (S₁), 4% (S₂), 5% (S₃), and 6% (S₄). The results showed increased proportion of nano-aluminum silicate significantly enhanced the studied traits. The nano-aluminum silicate ratio (S₄) was superior in root total length, plant height, leaf area, number of tillers, grains per spike, and grain yield, which did not differ from other ratios (S₃ and S₂). The irrigation period (I₂) appeared superior by giving the highest averages for the above traits, but did not differ significantly from the irrigation period (I₁). The interaction of nano-aluminum silicate ratio (S₄) and irrigation period (I₂) provided the highest grain yield.

Keywords: Wheat (Triticum aestivum L.), nano-aluminum silicate, unconventional technologies, irrigation periods, mixing ratios

Key findings: The results of the presented study showed irrigation periods had an influential role in the productivity of wheat (Triticum aestivum L.) grains, especially irrigation every 14 days (I₂), as it gave the highest average grain yield (8.202 t ha^-1). Moreover, adding nano-aluminum silicate was crucial in increasing productivity, especially the treatment S₄, which gave the highest average (7.752 t ha^-1) for grain yield.