Effect of Adding the Biological Fertilizer, Fulzyme Plus, and Spraying CaC12 on Efficiency of the Rhizoctonia Fungus, and the Qualitative of the Potato (Solanum tuberosum L)

A experiment was conducted to study in the spring of 2020 in Anbar – Heet to investigate the effect of adding the biological fertilizer, Fulzyme Plus, and spraying using CaC12 on the qualitative features of the Solanum Tuberosum L cv. of potatoes (Arizona) produced by Nahar Al-Awrad company for Potatoes Trading and Agricultural Equipment. The potato tubers were planted on 31/1/2020. The experiment was designed according to Randomized Complete Block Design (R.C.B.D). They were planted as treatments randomly in three replications. The results showed a significant superiority of the treatment T7 for iron of the product. Also, it showed 17.40 % superiority in the percentage of the dry composition in the tubers, 8.303% protein, 1.0666 g\cm3 qualitative density of the tubers, 11.50% starch, and 5.96.% T.S.S. The pathogenicity test showed the isolating Rhizoctonia fungus presented the lowest percentage, 3.57 of T7 treatment where a fertilizer and spraying were used in comparison with the comparison treatment that showed the highest percentage of pathogenicity (T2 = 29.52) where Rhizoctonia fungus was used.