Effect of Sources and Levels of Zinc Spraying on the Absorbed Zinc and Wheat Yield (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) in order to study the effect of the sources and levels of zinc spraying on zinc uptake and the yield of wheat (Triticum aestivum L.), as zinc was used. Nano (12% Zn), chelated zinc (14% Zn), 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 method (RCBD), with three replicates. Thus, the number of experimental units is (4*3*3)=36. The results show the superiority of nano-zinc at the level of 300PPM in the concentration of zinc on the plant at the flowering stage and the concentration of zinc in the plant at the harvest stage and the concentration of zinc in the grains and zinc uptake, which recorded the highest averages, while the chelated zinc at 300PPM was superior in the concentration of zinc in the plant at the branching stage, it recorded the highest average, as well as zinc sulfate at the level of 300PPM was superior to the grain yield.