Effect of Zinc Sources and Levels on Zinc Uptake and Growth and Yield of Wheat (Triticum aestivum L.)

Abstract

This experiment was conducted in a farmer’s field in Al-Najmi district, Al-Muthanna governorate, 3 km away from the district center during the agricultural season 2021-2022, to determine the effect of sources and levels of zinc spraying on the yield of wheat (Triticum aestivum L.), as zinc was used. Nano zinc (12% Zn), chelated zinc (14% Zn) and zinc sulfate (23% Zn) and a symbol for the sources with the symbol (S2, S3, S1) in sequence, and four levels (0, 100, 200, 300) mg Zn l-1, symbol It has (L4, L3, L2, L1) respectively, as it was sprayed on the wheat crop Rashid in two stages when branching and flowering. The experiment was conducted using factorial trials, randomized complete block Design (RCBD), with three replications. Thus, the number of experimental units is (4*3*3)=36. The results show that the superiority of nano-zinc at the level of 300PPM on the flag leaf area and the number of grains in the spike, as the highest averages, while zinc sulfate at the level of 200PPM outperformed in the trait of plant height, as it recorded the highest average, as well as the superiority of zinc sulphate at the level of 300PPM in the trait of spike length, number of branches, and grain yield, which recorded the highest averages.